clonezilla 3.27.16-2 / usr / sbin / ocs-onthefly

#!/bin/bash
#
# Author: Steven Shiau <steven _at_ nchc org tw>
# License: GPL 
# Description:
# This is only for "disk to disk" or "partition to partition" clone.

# it is important to run partimage in save mode with volume=0 so that we
# can send the data to stdout
# This is the basic idea for partimage:
# (partimage -z0 -o -d --volume=0 -B gui=no save /dev/hda1 stdout |
#  partimage -M -f3 -b restore /dev/hdc1 stdin)
# Similar idea for ntfsclone and dd.
# partclone has a better function, i.e. option "-b" allows to do local partition to partition clone without having piping.
ocs="$(basename $0)"
VOL_ZERO="0"
#create image volumes with a size of X, 
# ignore the MBR by using -M, we will ignore the error caused by devfs style
# in /proc/partitions
DEFAULT_STDOUT_PARTIMAGE_SAVE_OPT="-M -z0 -o -d -b -c -B gui=no --volume=$VOL_ZERO"
DEFAULT_STDIN_PARTIMAGE_RESTORE_OPT="-M -f3 -b"
# port for netcat
NC_PORT_DEFAULT="9000"
# Default to do 2nd confirm. If it's "no", by default we will run without 2nd confirmation.
onthefly_2nd_confirm="yes"
# Default not to create and inspect the checksum for files in the dev.
chksum_for_files_in_dev="no"

# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"

. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
. /etc/drbl/drbl-ocs.conf
. $DRBL_SCRIPT_PATH/sbin/ocs-functions

# Load the config in ocs-live.conf. This is specially for Clonezilla live. It will overwrite some settings of /etc/drbl/drbl-ocs.conf, such as $DIA...
[ -e "/etc/ocs/ocs-live.conf" ] && . /etc/ocs/ocs-live.conf

# Local functions:
# check if the user input /dev/hda, /dev/hdb...
check_input_param() {
  # return code 3 = disk, return code 5 = partition
  local input_src="$1"
  local recode
  if is_supported_dev "$input_src"; then
    if is_partition "$input_src"; then
      recode=5
    elif is_whole_disk "$input_src"; then
      recode=3
    else
      echo "\"$input_src\" $msg_is_unknown_HD" | tee --append ${OCS_LOGFILE}
      echo "$msg_program_stop"
      echo -n "$msg_press_enter_to_continue"
      read
      exit 1
    fi 
  else
    recode=1
  fi
  return $recode
} # end of check_input_param
#
create_gpt_part_table_in_onthefly() {
  # The type is GPT
  echo $msg_delimiter_star_line
  case "$create_part_type" in
    "proportion")
       [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
       echo "Create the proportional partition table in /dev/$target_hd based on $tgt_pt_tmp and the size of /dev/$target_hd..." | tee --append $OCS_LOGFILE
       [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
       clean_mbr_partition_table_before_gen_gpt_table /dev/$target_hd
       # Due to some reason, although LVM was deactived before we ran sfdisk, "sfdisk --force..." might cause LVM to active again. Therefore we have to deactive and run "blockdev --rereadpt..." to make the kernel know the new partition table again.
       echo $msg_delimiter_star_line
       if [ -n "$(LC_ALL=C lvscan | grep -Ewi "ACTIVE")" ]; then
         echo "LV is still active, try to deactive it..."
         ocs-lvm2-stop
       fi
       create_gpt_table_if_no_table /dev/$target_hd

       # We use environmental variable EXTRA_SFDISK_OPT so it can be used in ocs-expand-mbr-pt
       EXTRA_SFDISK_OPT=""
       [ -n "$sfdisk_opt" ] && EXTRA_SFDISK_OPT="$sfdisk_opt"
       if [ "$chk_tgt_disk_size_bf_mk_pt" = "no" ]; then
         ocs_expand_gpt_pt_opt="-icds"
         PARTCLONE_RESTORE_ONTHEFLY_OPT="$PARTCLONE_RESTORE_ONTHEFLY_OPT -C"
       fi
       EXTRA_SFDISK_OPT="$EXTRA_SFDISK_OPT" ocs-expand-gpt-pt $ocs_expand_gpt_pt_opt --batch $tgt_pt_tmp /dev/$target_hd 2>&1 | tee --append $OCS_LOGFILE

       RETVAL="${PIPESTATUS[0]}"
       echo "This was done by sfdisk: EXTRA_SFDISK_OPT="$EXTRA_SFDISK_OPT" ocs-expand-gpt-pt $ocs_expand_gpt_pt_opt --batch $tgt_pt_tmp /dev/$target_hd 2>&1 | tee --append $OCS_LOGFILE" | tee -a $OCS_LOGFILE
       # This is useless if $sfdisk_opt (--force is used)! Since we always use --force now, so the return value is "0"
       if [ "$RETVAL" -ne 0 ]; then
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "$msg_failed_to_create_partition_table_on_disk: /dev/$target_hd" | tee -a $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
         echo "$msg_is_this_disk_too_small: /dev/$target_hd?" | tee -a $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
         [ "$save_restore_error_log" = "yes" ] && copy_error_log
         my_ocs_exit 1
       fi
       # Sometimes even the return code of sgdisk is 0, it still fails. So the backup plan is to use dd.
       if [ -n "$(LC_ALL=C parted -s /dev/$target_hd print | grep -E "^Partition Table: unknown")" ]; then
         do_gpt_dd="yes"
       fi
       ;;
    "manual")
       echo "$msg_enter_another_shell_for_fdisk" | tee --append $OCS_LOGFILE
       echo -n "$msg_press_enter_to_continue..."
       read
       /bin/bash
       ;;
    *)
       # sfdisk >= 2.26 supports GPT, therefore we use it in higher priority.
       # The output of sda-pt.sf <= 0.25 which does not support GPT is like:
       # ===================================================
       # partition table of /dev/sda
       # unit: sectors
       # 
       # /dev/sda1 : start=        1, size=4294967295, Id=ee
       # /dev/sda2 : start=        0, size=        0, Id= 0
       # /dev/sda3 : start=        0, size=        0, Id= 0
       # /dev/sda4 : start=        0, size=        0, Id= 0
       # ===================================================
       # The output of sda-pt.sf >= 0.26 which supports GPT is like:
       # label: gpt
       # label-id: 0E63D1AA-A8B4-4D91-A001-679409116352
       # device: /dev/sda
       # unit: sectors
       # first-lba: 34
       # last-lba: 125829086
     
       # /dev/sda1 : start=        2048, size=      614400, type=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC, uuid=7163ACE9-9949-453E-8DF2-F1723DAFD051, name="Basic data partition", attrs="RequiredPartiton GUID:63"
       # /dev/sda2 : start=      616448, size=      202752, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=EA6B87BC-3976-4F47-A72E-793C9CEC6303, name="EFI system partition", attrs="GUID:63"
       # /dev/sda3 : start=      819200, size=      262144, type=E3C9E316-0B5C-4DB8-817D-F92DF00215AE, uuid=B3E0D044-8F53-423F-9C37-90F3D8F84815, name="Microsoft reserved partition", attrs="GUID:63"
       # /dev/sda4 : start=     1081344, size=   124745728, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=A3E73070-CFBD-4D9F-ADB9-8372BFB5AC0B, name="Basic data partition"
       # ===================================================
       if [ -n "$(LC_ALL=C grep -Ew "^label: gpt" $tgt_pt_tmp)" ]; then
         clean_mbr_partition_table_before_gen_gpt_table /dev/$target_hd
         # Due to some reason, although LVM was deactived before we ran sfdisk, "sfdisk --force..." might cause LVM to active again. Therefore we have to deactive and run "blockdev --rereadpt..." to make the kernel know the new partition table again.
         echo $msg_delimiter_star_line
         if [ -n "$(LC_ALL=C lvscan | grep -Ewi "ACTIVE")" ]; then
           echo "LV is still active, try to deactive it..."
           ocs-lvm2-stop
         fi
         create_gpt_table_if_no_table /dev/$target_hd
         echo "Running sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp" | tee -a $OCS_LOGFILE
         LC_ALL=C sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp | tee -a $OCS_LOGFILE
         RETVAL="${PIPESTATUS[0]}"
         echo "This was done by \"sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp\""
         # This is useless if $sfdisk_opt (--force is used)! Since we always use --force now, so the return value is "0"
         if [ "$RETVAL" -ne 0 ]; then
           [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
           echo "$msg_failed_to_create_partition_table_on_disk: /dev/$target_hd" | tee -a $OCS_LOGFILE
           [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
           echo "$msg_is_this_disk_too_small: /dev/$target_hd?" | tee -a $OCS_LOGFILE
           [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
           echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
           [ "$save_restore_error_log" = "yes" ] && copy_error_log
           my_ocs_exit 1
         fi
         # Sometimes even the return code of sgdisk is 0, it still fails. So the backup plan is to use dd.
         if [ -n "$(LC_ALL=C parted -s /dev/$target_hd print | grep -E "^Partition Table: unknown")" ]; then
           do_gpt_dd="yes"
         fi
       elif [ -e "$tgt_gpt_gdisk" ]; then
         # Use sgdisk to create that.
         clean_mbr_partition_table_before_gen_gpt_table /dev/$target_hd
         # Due to some reason, although LVM was deactived before we ran sfdisk, "sfdisk --force..." might cause LVM to active again. Therefore we have to deactive and run "blockdev --rereadpt..." to make the kernel know the new partition table again.
         echo $msg_delimiter_star_line
         if [ -n "$(LC_ALL=C lvscan | grep -Ewi "ACTIVE")" ]; then
           echo "LV is still active, try to deactive it..."
           ocs-lvm2-stop
         fi
         create_gpt_table_if_no_table /dev/$target_hd
         gdisk_tmp="$(mktemp /tmp/gdisk_tmp.XXXXXX)"
         echo "Running: sgdisk -l $tgt_gpt_gdisk /dev/$target_hd" | tee -a $OCS_LOGFILE
         LC_ALL=C sgdisk -l $tgt_gpt_gdisk /dev/$target_hd | tee $gdisk_tmp
         sgdisk_rc="${PIPESTATUS[0]}"
         if [ "$sgdisk_rc" -eq 0 ]; then
           # There is a bug about sgdisk 0.6.14, i.e.
           # sgdisk -l /home/partimag/2011-02-27-02-img-hfsplus-gdisk/sda-gpt.gdisk /dev/sdb
           # Warning! Current disk size doesn't match that of the backup!
           # Adjusting sizes to match, but subsequent problems are possible!
           # The justLooking flag is set. This probably means you can't write to the disk.
           # Aborting write of new partition table.
           # However, its return code is still 0. Therefore we can not use return code to judge that.
           if [ -n "$(LC_ALL=C grep -iE "Aborting write of new partition table" $gdisk_tmp)" ]; then
             [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
             echo "Failed to use sgdisk to restore the GPT partition table. Will use dd to restore the GPT partition table."
             [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
             do_gpt_dd="yes"
           else
             do_gpt_dd="no"
           fi
           # Sometimes even the return code of sgdisk is 0, it still fails. So the backup plan is to use dd.
           if [ -n "$(LC_ALL=C parted -s /dev/$target_hd print | grep -E "^Partition Table: unknown")" ]; then
             do_gpt_dd="yes"
           fi
         else
           do_gpt_dd="yes"
         fi
     
         # Somehow "sgdisk -l" (<= version 0.8.4) does not create protective MBR, either. Therefore we have to use the following workaround to write it again.
         if [ -n "$(LC_ALL=C parted -s /dev/$target_hd print | grep -i "it does not have a valid fake msdos partition table" )" ]; then
           # FixME. In the future if sgdisk supports an option to do this, we should swith to use sgdisk instead of gdisk+expect.
           sleep 1
           LC_ALL=C echo "spawn gdisk /dev/$target_hd; expect Command; send wq\r; expect \"Do you want to proceed? (Y/N)\"; send Y\r; expect eof" | expect -f -
         fi
         [ -e "$gdisk_tmp" ] && rm -f $gdisk_tmp
       else
         # For old style of image, there is no ${tgt_hd_name}-gpt.gdisk. We have to use dd to create the GPT partition table.
         do_gpt_dd="yes"
       fi
       ;;
  esac
  if [ "$do_gpt_dd" = "yes" ]; then
    # Use dd to create that.
    echo "Creating primary GPT info on /dev/$target_hd..." | tee -a $OCS_LOGFILE
    LC_ALL=C dd if=$tgt_1st_gpt of=/dev/$target_hd bs=512 count=34 &>/dev/null
    # 2nd GPT
    echo "Creating the secondary GPT to /dev/$target_hd..." | tee -a $OCS_LOGFILE
    to_seek="$((${tgt_disk_size_sec}-33+1))"
    LC_ALL=C dd if=$tgt_2nd_gpt of=/dev/$target_hd seek=${to_seek} bs=512 count=33 &>/dev/null
  fi
  
  #
  inform_kernel_partition_table_changed gpt /dev/$target_hd
  [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
  echo "$msg_the_partition_in_the_system_now:"
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  echo $msg_delimiter_star_line
  LC_ALL=C parted -s /dev/$target_hd print
  echo $msg_delimiter_star_line
} # end of create_gpt_part_table_in_onthefly
#
create_mbr_part_table_in_onthefly() {
  # The type is MBR
  echo "Creating MBR type's partition table..."
  case "$create_part_type" in
   "proportion")
      [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
     echo "Create the proportional partition table based on $tgt_pt_tmp and the size of /dev/$target_hd..." | tee --append $OCS_LOGFILE
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     # We use environmental variable EXTRA_SFDISK_OPT so it can be used in ocs-expand-mbr-pt
     EXTRA_SFDISK_OPT=""
     [ -n "$sfdisk_opt" ] && EXTRA_SFDISK_OPT="$sfdisk_opt"
     if [ "$chk_tgt_disk_size_bf_mk_pt" = "no" ]; then
       ocs_expand_mbr_pt_opt="-icds"
       PARTCLONE_RESTORE_ONTHEFLY_OPT="$PARTCLONE_RESTORE_ONTHEFLY_OPT -C"
     fi
     EXTRA_SFDISK_OPT="$EXTRA_SFDISK_OPT" ocs-expand-mbr-pt $ocs_expand_mbr_pt_opt --batch $tgt_pt_tmp /dev/$target_hd | tee --append $OCS_LOGFILE
     RETVAL="${PIPESTATUS[0]}"
     echo "This was done by sfdisk: EXTRA_SFDISK_OPT=\"$EXTRA_SFDISK_OPT\" ocs-expand-mbr-pt $ocs_expand_mbr_pt_opt --batch $tgt_pt_tmp /dev/$target_hd" | tee --append $OCS_LOGFILE
     # This is useless if $sfdisk_opt (--force is used)! Since we always use --force now, so the return value is "0"
     if [ "$RETVAL" -ne 0 ]; then
       [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
       echo "$msg_failed_to_create_partition_table_on_disk: /dev/$target_hd" | tee -a $OCS_LOGFILE
       [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
       echo "$msg_is_this_disk_too_small: /dev/$target_hd?" | tee -a $OCS_LOGFILE
       [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
       echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
       [ "$save_restore_error_log" = "yes" ] && copy_error_log
       my_ocs_exit 1
     fi
     ;;
   "manual")
     echo "$msg_enter_another_shell_for_fdisk"
      echo -n "$msg_press_enter_to_continue..."
      read
      /bin/bash
     ;;
    *)
      # Create partition table by sfdisk and *-pt.sf
      # If target_disk size is larger than 2 TiB (~2.2 TB = 2,199,023,255,040 bytes), exit. It's over the MBR's limitation.
      init_mbr_part_table_if_not_existing /dev/$target_hd
      check_mbr_disk_size_gt_2TiB /dev/$target_hd warning 
      echo "sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp"
      LC_ALL=C sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp | tee -a $OCS_LOGFIL
      RETVAL="${PIPESTATUS[0]}"
      echo "This was done by \"sfdisk $sfdisk_opt /dev/$target_hd < $tgt_pt_tmp\""
      #
      inform_kernel_partition_table_changed mbr /dev/$target_hd
      # Add another checking mechanism by parted, since sfdisk with -f won't return correct code.
      echo "Checking the integrity of partition table in the disk /dev/$target_hd... "
      dsk_chk_tmp="$(mktemp /tmp/ocs_dskchk_tmp.XXXXXX)"
      LC_ALL=C parted -s /dev/$target_hd print &> $dsk_chk_tmp
      rc=$?
      if [ "$rc" -gt 0 ]; then
        [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
        echo "$msg_the_partition_table_in_disk_is_illegal: /dev/$target_hd" | tee -a $OCS_LOGFIL
        echo "$msg_is_this_disk_too_small ?" | tee -a $OCS_LOGFIL
        [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
        if [ -e "$dsk_chk_tmp" ]; then
          echo "$msg_error_messages_from_parted_are:"
          echo $msg_delimiter_star_line
          cat $dsk_chk_tmp
          echo $msg_delimiter_star_line
          rm -f $dsk_chk_tmp
        fi
        [ -e "$dsk_chk_tmp" -a -n "$(echo $dsk_chk_tmp | grep "ocs_dskchk_tmp")" ] && rm -f $dsk_chk_tmp
        echo "$msg_program_stop!"
        exit 1
      fi
      [ -e "$dsk_chk_tmp" -a -n "$(echo $dsk_chk_tmp | grep "ocs_dskchk_tmp")" ] && rm -f $dsk_chk_tmp
     ;;
  esac
} # end of create_mbr_part_table_in_onthefly
#
check_pt_then_run_create_part_table() {
  local dsk_chk_tmp
  local to_seek gdisk_tmp ocs_onthefly_fdisk
  local src_disk_size_sec src_disk_size_GB tgt_disk_size_sec tgt_disk_size_GB 
  local ocs_expand_mbr_pt_opt=""
  echo "$msg_creating_partition_in_target"
  if [ ! -f "$tgt_parted_info" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "$msg_fail_to_create_partition_table_in_target_dev: /dev/$tgt_dev" | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop"
    exit 1
  fi

  # src_disk_size_sec, src_disk_size_GB, tgt_disk_size_sec, tgt_disk_size_GB will be got from get_dsk_size_from_img_and_tgt_dsk_size_from_machine 
  # Since tgt_parted_info is definted as:
  # tgt_parted_info="$hd_tgt_tmp/tgt-pt.parted"
  # the device name is always "tgt".
  get_dsk_size_from_img_and_tgt_dsk_size_from_machine "$(dirname $tgt_parted_info)" "tgt" "${target_hd}"

  if [ "$chk_tgt_disk_size_bf_mk_pt" = "yes" ]; then
    if [ "$src_disk_size_sec" -gt "$tgt_disk_size_sec" ]; then
     [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
     echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
     echo "$msg_destination_disk_too_small" | tee --append ${OCS_LOGFILE}
     echo "$msg_destination_disk_size: $tgt_disk_size_sec sectors ($tgt_disk_size_GB GB)" | tee --append ${OCS_LOGFILE}
     echo "$msg_src_disk_size_from_image: $src_disk_size_sec sectors ($src_disk_size_GB GB)" | tee --append ${OCS_LOGFILE}
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
     exit 1
    fi
  fi

  # Turn off swap and LVM2, unlock the busy partitions.
  turn_off_swap_and_LVM2

  #
  clean_mbr_gpt_part_table /dev/$target_hd

  # From the output file of parted, we can decide if the partition is gpt or mbr
  if `is_gpt_partitition_table_file $tgt_parted_info`; then
    create_gpt_part_table_in_onthefly
  elif `is_mbr_partitition_table_file $tgt_parted_info`; then
    create_mbr_part_table_in_onthefly
  else
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "Unknown partition table format from file $tgt_parted_info!"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop!"
    exit 1
  fi
  echo 'done!'
} # end of check_pt_then_run_create_part_table
#
nc_lp_check() {
  NC_LOCAL_PORT_OPT=
  nc_tmp="$(mktemp /tmp/nc_tmp.XXXXXX)"
  # check if command is nc or netcat
  if which nc &>/dev/null; then
     NC_CMD="nc"
  elif which netcat &>/dev/null; then
     NC_CMD="netcat"
  else
     [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
     echo "Unable to find command netcat or nc!!!" | tee --append ${OCS_LOGFILE}
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     echo "$msg_program_stop!!"
     exit 1
  fi

  LC_ALL=C $NC_CMD -h 2> $nc_tmp
  if [ -n "$(grep -Ei "^[[:space:]]*-p port[[:space:]]+local port number" $nc_tmp)" ]; then
     # This is the version Hobbit wrote (http://www.vulnwatch.org/netcat/)
     # The reason we want to add -q 0 for Hobbit version is that:
     # in Debian, if -q 0 is not set, it will wait forever... nc will not quit.
     # However, in FC3 or ealier version, there is no -q option. nc will quit
     # when EOF.
     [ -n "$(grep "\-q secs" $nc_tmp 2>/dev/null)" ] && NC_QUIT_OPT="-q 0"
     NC_LOCAL_PORT_OPT="$NC_QUIT_OPT -p"
  elif [ -n "$(grep -Ei "^[[:space:]]*-p port[[:space:]]+Specify local port for remote connects" $nc_tmp)" ]; then
     # This is the version Eric Jackson wrote (http://www.monkey.org/~shinobi)
     NC_LOCAL_PORT_OPT=""
  fi
  if [ -n "$(grep -Ei "^[[:space:]]*-d[[:space:]]+Detach from stdin" $nc_tmp)" ]; then
     # if -d is not assigned, it will try to read stdin data, which will cause some problem like this, since it's in the while loop, and while read something from stdin, and nc will also get that if -d is not added:
     # while read logv filesystem; do
     #   nc 192.168.120.2 9006 | lzop -dc | partimage -M -f3 -b -B gui=no restore $logv stdin
     # done < $logv_pse_con
     NC_CLIENT_EXTRA_OPT="-d"
  fi
  [ -f "$nc_tmp" ] && rm -f $nc_tmp
  echo "Using \"-l $NC_LOCAL_PORT_OPT port\" when it's netcat listen mode." | tee --append ${OCS_LOGFILE}
} # end of nc_lp_check

#
kill_clone_prog_nc_process() {
  local i
  echo "Terminate partimage and $NC_CMD processs if they exist..." | tee --append ${OCS_LOGFILE}
  for i in partclone partimage ntfsclone dd $NC_CMD; do
    echo "pkill -u root $i"  && pkill -u root $i
  done
} # end of kill_clone_prog_nc_process
#
ask_if_clone_mbr(){
  # ocs_onthefly_clone_mbr is global variable in ocs-onthefly.
  if [ "$CLONE_BOOT_LOADER" = "yes" ] && [ "$source_type" = "disk" ] && [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then
    if [ -z "$ocs_onthefly_clone_mbr" ]; then
      if [ "$batch_mode" = "on" ]; then
        ocs_onthefly_clone_mbr="y"
      else
        [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
        echo "$msg_do_you_want_to_clone_the_boot_loader_to: $tgt_dev ?"
        [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
        echo -n "[Y/n] "
        read ocs_onthefly_clone_mbr
      fi
    fi
  fi
} # end of ask_if_clone_mbr
#
clone_boot_loader_in_target() {
  # ocs_onthefly_clone_mbr is global variable in ocs-onthefly.
  local ret ret_extpt
  echo "$msg_delimiter_star_line"
  if [ "$CLONE_BOOT_LOADER" = "yes" ] && [ "$source_type" = "disk" ] && [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then
    case "$ocs_onthefly_clone_mbr" in
      n|N|[nN][oO])
         echo "OK, $msg_skip_clone_boot_loader." | tee --append ${OCS_LOGFILE}
         ;;
      *)
         if [ "$mode" = "local" ]; then
           echo "Cloning the boot loader (executable code area) from \"$source_hd\" to \"$target_hd\"..." | tee --append ${OCS_LOGFILE}
           # boot loader is the first 446 Bytes, the rest part is partition table.
           dd if=/dev/$source_hd of=/dev/$target_hd bs=446 count=1 &> /dev/null
           ret=$?
         elif [ "$STATUS" = "clone_client" ]; then
           echo "Cloning the boot loader (executable code area) from that in $SOURCE_IP to \"$target_hd\"..." | tee --append ${OCS_LOGFILE}
           # boot loader is the first 446 Bytes, the rest part is partition table.
           dd if=$hd_tgt_tmp/src-mbr of=/dev/$target_hd bs=446 count=1 &> /dev/null
           ret=$?
         fi

	 # The following is for both local mode and network mode.
         # Sometimes it's not easy to get the destination extended partition
	 # device name, e.g. sda3 -> sdb3 (easy), or sda3 -> nvme1n1p3 (not easy). Here we parse the destination partition table file to get that.
         # boot loader is the first 446 Bytes, the rest part is logical drive partition table.
	 # This method works for both local mode and network mode.
         if `is_mbr_partitition_table_file $tgt_parted_info`; then
           extended_pt_in_tgt_hd="$(get_extended_partition_parted_format $tgt_parted_info)"
	   if [ -n "$extended_pt_in_tgt_hd" ]; then
	     echo "Cloning the extended boot loader (EBR) (executable code area) from \"$src_extpt_ebr\" to \"/dev/$extended_pt_in_tgt_hd\"..." | tee --append ${OCS_LOGFILE}
             dd if=$tgt_extpt_ebr of=/dev/$extended_pt_in_tgt_hd bs=446 count=1 &> /dev/null
             ret_extpt=$?
           fi
         fi

         if [ -n "$ret" -a "$ret" -ge 1 ]; then
           [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
           echo "$msg_failed_to_clone_the_boot_loader: \"$target_hd\"" | tee --append ${OCS_LOGFILE}
           [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
           echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
           exit 1
         fi
         if [ -n "$ret_extpt" -a "$ret_extpt" -ge 1 ]; then
           [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
           echo "$msg_failed_to_clone_the_boot_loader_on_EBR: \"/dev/$extended_pt_in_tgt_hd\"" | tee --append ${OCS_LOGFILE}
           [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
           echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
           exit 1
         fi
         ;;
    esac
  fi
} # end of clone_boot_loader_in_target
#
create_partition_table_in_target(){
  if [ "$create_part" != "no" ]; then
    echo "$msg_delimiter_star_line"
    if [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then 
      # try to see if the partition table exists in the target 
      #if [ -n "$(LC_ALL=C fdisk -l /dev/$target_hd 2>/dev/null | grep -E "/dev/[sh]d[a-z][0-9]+")" ] ; then
      gen_proc_partitions_map_file
      if [ -n "$(LC_ALL=C grep -Eo "$target_hd[[:digit:]]+" $partition_table)" ]; then
        partition_table_exist_in_target="yes"
      else
        partition_table_exist_in_target="no"
      fi
      check_pt_then_run_create_part_table
      # After partition table is created, we can dump the hidden data which is between MBR and 1st partition.
      # Not GPT type of disk. We only deal with MBR for this hidden data
      if `is_mbr_partitition_table_disk /dev/$target_hd`; then
        echo "$msg_delimiter_star_line" | tee --append ${OCS_LOGFILE}
        if [ "$clone_hidden_data" = "yes" ]; then
          restore_hidden_data_after_MBR $target_hd $tgt_hidden_img
        fi
        echo "$msg_delimiter_star_line" | tee --append ${OCS_LOGFILE}
      fi
      [ -f "$partition_table" ] && rm -f $partition_table
    fi
  else
    # Not to create partition table on destination disk. Check if partition table exists or not.
    echo "$msg_delimiter_star_line"
    if [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then 
      # try to see if the partition table exists in the target 
      gen_proc_partitions_map_file
      if [ -z "$(LC_ALL=C grep -Eo "$target_hd[[:digit:]]+" $partition_table)" ]; then
        # No any partition found!
        [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
        echo "No partition table exists in /dev/$target_hd, and you choose not to create partition table in /dev/$target_hd! We can not go on without partition table in /dev/$target_hd!!!"
        [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
        echo "$msg_program_stop!"
        exit 1
      fi
    fi
  fi
} # end of create_partition_table_in_target
#
confirm_do_it_in_target_dev() {
  local DEV_MODEL machine_name
  if [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then
    # From target_hd, we can get the partitions list
    # We need the partition table to conver the selected HD to partitions.
    tgt_parts=""
    for idisk in $target_hd; do
      # Since sfdisk does not work with EFI/GPT, we no more use sfdisk to get the partition list. Instead, we use /proc/partitions from kenrel to list them. Thanks to Justin Fitzhugh from mozilla.com.
      # pt_tmp="$(mktemp /tmp/pt_tmp.XXXXXX)"
      # sfdisk -d /dev/$idisk > $pt_tmp
      # # find the available partitions
      # for partition in `get_known_partition_sf_format $pt_tmp`; do
      #   tgt_parts="$tgt_parts $partition"
      # done
      # for partition in `get_swap_partition_sf_format $pt_tmp`; do
      #   target_swap_parts="$target_swap_parts $partition"
      # done
      # [ -f "$pt_tmp" ] && rm -f $pt_tmp
      BACKUP_DEVS=""
      echo "Searching for data partition(s)..." | tee --append ${OCS_LOGFILE}
      get_known_partition_proc_format $idisk data
      tgt_parts="$tgt_parts $BACKUP_DEVS"
    done
    # get_dev_model_shown will give $dev_model_shown
    get_dev_model_shown "$target_hd $tgt_parts"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "$msg_uppercase_Warning!!! $msg_uppercase_Warning!!! $msg_uppercase_Warning!!!"
    echo "$msg_uppercase_Warning! $msg_all_data_in_dev_will_be_overwritten: $tgt_dev" | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo -e "$dev_model_shown" | tee --append ${OCS_LOGFILE}
    #LC_ALL=C parted -s /dev/$target_hd print
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}

    if [ "$batch_mode" != "on" ]; then
      confirm_continue_no_default_answer "clean_tmp_dirs"
      echo $msg_delimiter_star_line
      # 2nd confirmation
      if [ "$onthefly_2nd_confirm" = "yes" ]; then
        [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
        echo "$msg_let_me_ask_you_again."
        echo "$msg_uppercase_Warning!!! $msg_uppercase_Warning!!! $msg_uppercase_Warning!!!"
        echo "$msg_uppercase_Warning! $msg_all_data_in_dev_will_be_overwritten: $tgt_dev" | tee --append ${OCS_LOGFILE}
        [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
        confirm_continue_no_default_answer "clean_tmp_dirs"
      fi
    fi
  fi
} # end of confirm_do_it_in_target_dev
#
local_lvm_clone_warning() {
  if [ "$part_fs" = "lvm" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "Local LVM clone is not well supported, since in the same system, no two same PV UUID can co-exist. Use dd to do sector-to-sector copy. On the other hand, a workaround is available. You can use network clone using two separate machines in clonezilla to avoid this problem. For more details, check http://clonezilla.org for more details. " | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  fi
} # end of local_lvm_clone_warning
#
prepare_local_clone_dev_info() {
  local_tmp="$(mktemp -d /tmp/ocs_onthefly_local.XXXXXX)"
  local pt_type src_disk_size_sec src_to_skip
  # since it's local, target tmp dir is the same one with local_tmp
  hd_src_tmp="$local_tmp"
  hd_tgt_tmp="$local_tmp"
  # For source disk
  src_pt_tmp="$hd_src_tmp/src_pt.sf"
  src_dsk_mbr="$hd_src_tmp/src-mbr"
  src_extpt_ebr="$hd_src_tmp/src-exept-ebr"
  src_dsk_chs="$hd_src_tmp/src-chs.sf"
  src_pt_info="$hd_src_tmp/source_partition.info"
  src_parted_info="$hd_src_tmp/src-pt.parted"
  src_blkdev_info="$hd_src_tmp/src-blkdev.list"
  src_1st_gpt="$hd_src_tmp/src-gpt-1st.img"
  src_2nd_gpt="$hd_src_tmp/src-gpt-2nd.img"
  src_gpt_gdisk="$hd_src_tmp/src-gpt.gdisk"
  # hidden data is between mbr and 1st partition.
  src_hidden_img="$hd_src_tmp/src-hidden-data.img"  
  #src_efi_nvram_data="$hd_src_tmp/src-efi-nvram.dat" # no need for local EFI/GPT disk cloning 
  # For target disk
  tgt_pt_tmp="$hd_tgt_tmp/tgt-pt.sf"
  tgt_dsk_mbr="$hd_tgt_tmp/${target_hd}-mbr"
  tgt_extpt_ebr="$hd_tgt_tmp/tgt-exept-ebr"
  tgt_dsk_chs="$hd_tgt_tmp/${target_hd}-chs.sf"
  tgt_pt_info="$hd_tgt_tmp/target_partition.info"
  tgt_parted_info="$hd_tgt_tmp/tgt-pt.parted"
  tgt_blkdev_info="$hd_tgt_tmp/tgt-blkdev.list"
  tgt_1st_gpt="$hd_tgt_tmp/tgt-gpt-1st.img"
  tgt_2nd_gpt="$hd_tgt_tmp/tgt-gpt-2nd.img"
  tgt_gpt_gdisk="$hd_tgt_tmp/tgt-gpt.gdisk"
  # hidden data is between mbr and 1st partition.
  tgt_hidden_img="$hd_tgt_tmp/tgt-hidden-data.img"
  #tgt_efi_nvram_data="$hd_tgt_tmp/tgt-efi-nvram.dat" # no need for local EFI/GPT disk cloning 

  local part_in_hd swap_in_hd extended_pt_in_hd

  # Note! In Ubuntu 6.10, sfdisk output abnormal format for >= 10 partitions, like
  #...
  #/dev/hda9 : start=  1277703, size=   196497, Id=83
  #/dev/hda10: start=  1474263, size=   196497, Id=83
  #/dev/hda11: start=  1670823, size=   196497, Id=83
  #/dev/hda12: start=  1867383, size= 14909202, Id=83
  # Therefor later we have to use  "sed -e "s/:$//g" to clean that.
  #
  # Here we want to output the filesystem of partition to be refered by client.
  # Ex:
  # /dev/hda1 reiserfs
  # /dev/hda2 ext3

  check_mbr_gpt_partition_table $source_hd
  
  LC_ALL=C parted -s /dev/$source_hd unit s print > $src_parted_info
  output_blkdev_info $src_blkdev_info /dev/$source_hd

  echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
  if `is_mbr_partitition_table_file $src_parted_info`; then
    # MBR disk, ask if clone boot loader
    ask_if_clone_mbr
  fi

  # From the output file of parted, we can decide if the partition is gpt or mbr
  if `is_gpt_partitition_table_file $src_parted_info`; then
    pt_type="gpt"
  elif `is_mbr_partitition_table_file $src_parted_info`; then
    pt_type="mbr"
  else
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "Unknown partition table format for file $src_parted_info!" | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
    exit 1
  fi

  # No matter it's MBR or GPT, we use sfdisk to dump partition table since if dual boot (Mac OS, Linux) on Mac book, this partition table is required for Linux normally.
  # MBR
  LC_ALL=C dd if=/dev/$source_hd of=$src_dsk_mbr bs=512 count=1 &> /dev/null
  LC_ALL=C sfdisk -d /dev/$source_hd > $src_pt_tmp 2>/dev/null

  # The output of CHS is ${source_hd}-chs.sf
  output_HD_CHS $source_hd $hd_tgt_tmp/ 2>/dev/null
  mv -f $hd_tgt_tmp/${source_hd}-chs.sf $src_dsk_chs
  if [ "$pt_type" = "mbr" ]; then
    # If it's not GPT, we save the hidden data after MBR and before 1st partition for later use.
    if [ "$clone_hidden_data" = "yes" ]; then
      save_hidden_data_after_MBR $source_hd $src_hidden_img
    fi
  fi

  # GPT
  if [ "$pt_type" = "gpt" ]; then
    echo "Saving the GPT of /dev/$source_hd as $src_gpt_gdisk by sgdisk..." | tee --append ${OCS_LOGFILE}
    LC_ALL=C sgdisk -b $src_gpt_gdisk /dev/$source_hd | tee --append ${OCS_LOGFILE}

    echo "Saving the primary GPT of /dev/$source_hd as $src_1st_gpt by dd..." | tee --append ${OCS_LOGFILE}
    LC_ALL=C dd if=/dev/$source_hd of=$src_1st_gpt bs=512 count=34 | tee --append ${OCS_LOGFILE}
    echo "Saving the secondary GPT of /dev/$source_hd as $src_2nd_gpt by dd..." | tee --append ${OCS_LOGFILE}
    src_disk_size_sec="$(LC_ALL=C parted -s /dev/$source_hd unit s print | grep -E "^Disk /dev/" | awk -F":" '{print $2}' | sed -e "s/s$//g")"
    src_to_skip="$((${src_disk_size_sec}-33+1))"
    LC_ALL=C dd if=/dev/$source_hd of=$src_2nd_gpt skip=${src_to_skip} bs=512 count=33 | tee --append ${OCS_LOGFILE}
  fi

  echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
  # Here we should use /proc/partitions instead of partition table since GPT won't be in the output of sfdisk
  # major minor  #blocks  name
  #
  #   8     0  156290904 sda
  #   8     1   92526336 sda1
  #   8     2    9767520 sda2
  #   8     3    1951897 sda3
  #   8     4          1 sda4
  #   8     5   52042536 sda5
  #   8    16  244198584 sdb
  #   8    17  244196001 sdb1

  gen_proc_partitions_map_file
  part_in_hd="$(get_part_list $partition_table)"
  # For multiple disks, part_in_hd might contain partitions from different
  # disks, e.g. "sda3 nvme1n1p2"
  for part in $part_in_hd; do
    if [ -z "$(echo $part | grep -E "$source_hd")" ]; then
      # We should process only the partitions from source disk
      # E.g. sda3 is from sda, nvme1n1p2 is from disk nvme1n1.
      continue
    fi
    echo "Collecting partition /dev/$part info..." | tee --append ${OCS_LOGFILE}
    filesystem="$(LC_ALL=C ocs-get-part-info /dev/$part filesystem)"
    pt_size="$(LC_ALL=C ocs-get-part-info /dev/$part size)"
    if [ -n "$filesystem" ]; then
      # If filesystem is empty (e.g. Extended partitoin, parted will show it as empty), skip this.
      echo "/dev/$part $filesystem $pt_size" >> $src_pt_info
    fi
    # Tag the partition info. This is special for NTFS boot reserved partiition
    rc_boot_reserve=""
    check_if_windows_boot_reserve_part /dev/$part
    rc_boot_reserve="$?"
    if [ "$rc_boot_reserve" -eq 0 ]; then
      target_part_info="$(echo ${part}.info | replace_disk_name_stdin $source_hd $target_hd)"
      echo "PARTITION_TYPE=Win_boot_reserved" > $local_tmp/$target_part_info
    fi
    #
  done
  # SWAP partition info, maybe more than 1
  swap_in_hd="$(awk -F" " '/swap/ {print $1}' $src_pt_info | sed -r -e 's|/dev/||g')"
  for partition in $swap_in_hd; do
    echo "Outputing swap UUID/LABEL of $partition..." | tee --append ${OCS_LOGFILE}
    # change the target swap partition, like hda2 -> hdb2
    target_swap_part_info="$(echo swappt-${partition}.info | replace_disk_name_stdin $source_hd $target_hd)"
    output_swap_partition_uuid_label /dev/$partition $local_tmp/$target_swap_part_info
  done

  # Output the extended boot record (EBR) in case it contains grub boot loader
  if [ "$pt_type" = "mbr" ]; then
    extended_pt_in_hd="$(get_extended_partition_parted_format $src_parted_info)"
    # Extended partition should have one only in a disk.
    if [ -n "$extended_pt_in_hd" ]; then
      LC_ALL=C dd if=/dev/$extended_pt_in_hd of=$src_extpt_ebr bs=512 count=1 &> /dev/null
    fi
  fi

  # No need for local EFI/GPT disk cloning
  ## Save EFI NVRAM info. What we need is actually the label
  ## Only if dir /sys/firmware/efi/efivars exists, the data exist in EFI NVRAM 
  #if [ -d "/sys/firmware/efi/efivars" ]; then
  #  LC_ALL=C efibootmgr -v 2>/dev/null > $src_efi_nvram_data
  #fi

  # change the dev to target in the $pt_tmp and $pt_info
  [ -f "$src_pt_tmp" ] && cp -f $src_pt_tmp $tgt_pt_tmp
  [ -f "$src_parted_info" ] && cp -f $src_parted_info $tgt_parted_info
  [ -f "$src_blkdev_info" ] && cp -f $src_blkdev_info $tgt_blkdev_info
  [ -f "$src_pt_info" ] && cp -f $src_pt_info $tgt_pt_info
  [ -f "$src_1st_gpt" ] && cp -f $src_1st_gpt $tgt_1st_gpt
  [ -f "$src_2nd_gpt" ] && cp -f $src_2nd_gpt $tgt_2nd_gpt
  [ -f "$src_gpt_gdisk" ] && cp -f $src_gpt_gdisk $tgt_gpt_gdisk
  [ -f "$src_hidden_img" ] && cp -f $src_hidden_img $tgt_hidden_img
  [ -f "$src_dsk_mbr" ] && cp -f $src_dsk_mbr $tgt_dsk_mbr
  [ -f "$src_extpt_ebr" ] && cp -f $src_extpt_ebr $tgt_extpt_ebr
  [ -f "$src_dsk_chs" ] && cp -f $src_dsk_chs $tgt_dsk_chs
  [ -e "$tgt_pt_tmp" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_pt_tmp
  [ -e "$tgt_parted_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_parted_info
  [ -e "$tgt_blkdev_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_blkdev_info
  [ -e "$tgt_pt_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_pt_info
  # [ -f "$src_efi_nvram_data" ] && cp -f $src_efi_nvram_data $tgt_efi_nvram_data # no need for local EFI/GPT disk cloning

  # Decide use_HD_CHS_from_EDD
  # From use_HD_CHS_from_EDD_pref we will decide if use_HD_CHS_from_EDD is yes or no. The rule is if we find the target disk does _NOT_ contain grub boot loader, set use_HD_CHS_from_EDD as yes, others, set it as no. This is because we will re-run grub-install by deafult.
  if [ "$use_HD_CHS_from_EDD_pref" = "yes" ]; then
    if [ -z "$(LC_ALL=C strings $hd_tgt_tmp/${target_hd}-mbr | grep -i "grub")" ]
    then 
      # It's not grub boot loader, set use_HD_CHS_from_EDD as yes
      echo "Non-grub boot loader found on $hd_tgt_tmp/${target_hd}-mbr..." | tee --append ${OCS_LOGFILE}
      echo "The CHS value of hard drive from EDD will be used for sfdisk." | tee --append ${OCS_LOGFILE}
      use_HD_CHS_from_EDD="yes"
    fi
  fi
  get_sfdisk_cyl_opt_flag  # sfdisk_cyl_opt_flag will be got.
  # get sfdisk_opt if load_HD_CHS_from_img is yes
  if [ "$use_HD_CHS_from_EDD" = "yes" ]; then
    if [ "$sfdisk_cyl_opt_flag" = "yes" ]; then
      rawhead=""
      rawsector=""
      rawcylinder=""
      get_RawCHS_of_HD_from_EDD /dev/$target_hd
      if [ -n "$rawhead" -a -n "$rawsector" -a -n "$rawcylinder" ]; then
        sfdisk_opt="$sfdisk_opt -C $rawcylinder -H $rawhead -S $rawsector"
      else
        echo "No CHS value was found from EDD info for disk /dev/$target_hd." | tee --append ${OCS_LOGFILE}
      fi
    else
      echo "Sfdisk >= 2.26 does not support C/H/S option. Skip using C/H/S option." | tee --append ${OCS_LOGFILE}
    fi
  elif [ "$load_HD_CHS_from_img" = "yes" ]; then
    if [ "$sfdisk_cyl_opt_flag" = "yes" ]; then
      # Append the CHS to variable "$sfdisk_opt" if CHS can be find in the image dir.
      load_HD_geometry_opt_from_image $hd_tgt_tmp/ $target_hd
    else
      echo "Sfdisk >= 2.26 does not support C/H/S option. Skip using C/H/S option." | tee --append ${OCS_LOGFILE}
    fi
  fi

  [ -f "$partition_table" ] && rm -f $partition_table
} # end of prepare_local_clone_dev_info
#
prepare_network_clone_dev_info() {
  # This function is for server and client both. It depends on $STATUS is clone_server or clone_client
  local DEV VG UUID LOGV
  local part_in_hd swap_in_hd extended_pt_in_hd s_swpname t_swpname
  #
  if [ "$STATUS" = "clone_server" ]; then
    hd_src_tmp="$(mktemp -d /tmp/ocs_onthefly_src.XXXXXX)"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "$msg_this_is_for_source_machine." | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "source_type=$source_type" > $hd_src_tmp/target_type.ocs_onthefly
    cat $hd_src_tmp/target_type.ocs_onthefly | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &
    NC_PORT=$((NC_PORT + 2))
  elif [ "$STATUS" = "clone_client" ]; then
    hd_tgt_tmp="$(mktemp -d /tmp/ocs_onthefly_tgt.XXXXXX)"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "$msg_this_is_for_target_machine" | tee --append ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    $NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT > $hd_tgt_tmp/target_type.ocs_onthefly
    NC_PORT=$((NC_PORT + 2))
    . $hd_tgt_tmp/target_type.ocs_onthefly
    source_type=$source_type
  fi
  # Check now, just in case
  if [ "$STATUS" = "clone_server" ]; then
    if [ "$source_type" = "disk" -a -z "$source_hd" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Source type is disk, but source disk name (Ex. hda) can NOT be found!" | tee --append ${OCS_LOGFILE}
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
      echo -n "$msg_press_enter_to_continue"
      read
      clean_tmp_dirs
      exit 1
    fi
  elif [ "$STATUS" = "clone_client" ]; then
    if [ "$target_type" = "disk" -a -z "$target_hd" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Target type is disk, but target disk name (Ex. hdb) can NOT be found!" | tee --append ${OCS_LOGFILE}
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
      echo -n "$msg_press_enter_to_continue"
      read
      clean_tmp_dirs
      exit 1
    fi
  fi
  if [ "$STATUS" = "clone_server" ]; then
    src_pt_tmp="$hd_src_tmp/src_pt.sf"
    src_dsk_mbr="$hd_src_tmp/src-mbr"
    src_extpt_ebr="$hd_src_tmp/src-exept-ebr"
    src_dsk_chs="$hd_src_tmp/src-chs.sf"
    src_pt_info="$hd_src_tmp/src_partition.info"
    src_parted_info="$hd_src_tmp/src-pt.parted"
    src_blkdev_info="$hd_src_tmp/src-blkdev.list"
    src_1st_gpt="$hd_src_tmp/src-gpt-1st.img"
    src_2nd_gpt="$hd_src_tmp/src-gpt-2nd.img"
    src_gpt_gdisk="$hd_src_tmp/src-gpt.gdisk"
    src_hidden_img="$hd_src_tmp/src_hidden-data.img"
    src_efi_nvram_data="$hd_src_tmp/src-efi-nvram.dat"  

    # partition table
    # Note! In Ubuntu 6.10, sfdisk output abnormal format for >= 10 partitions, like
    #...
    #/dev/hda9 : start=  1277703, size=   196497, Id=83
    #/dev/hda10: start=  1474263, size=   196497, Id=83
    #/dev/hda11: start=  1670823, size=   196497, Id=83
    #/dev/hda12: start=  1867383, size= 14909202, Id=83
    # Therefor later we have to use  "sed -e "s/:$//g" to clean that.
    LC_ALL=C parted -s /dev/$source_hd unit s print > $src_parted_info
    output_blkdev_info $src_blkdev_info /dev/$source_hd

    # From the output file of parted, we can decide if the partition is gpt or mbr
    if `is_gpt_partitition_table_file $src_parted_info`; then
      pt_type="gpt"
    elif `is_mbr_partitition_table_file $src_parted_info`; then
      pt_type="mbr"
    else
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Unknown partition table format from file $src_parted_info!" | tee --append ${OCS_LOGFILE}
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
      exit 1
    fi

    # No matter it's MBR or GPT, we use sfdisk to dump partition table since if dual boot (Mac OS, Linux) on Mac book, this partition table is required for Linux normally.
    # MBR
    LC_ALL=C dd if=/dev/$source_hd of=$src_dsk_mbr bs=512 count=1 &> /dev/null
    LC_ALL=C sfdisk -d /dev/$source_hd > $src_pt_tmp 2>/dev/null

    # The output of CHS is ${source_hd}-chs.sf
    output_HD_CHS $source_hd $hd_src_tmp/
    mv -f $hd_src_tmp/${source_hd}-chs.sf $src_dsk_chs
    # If it's not GPT, we save the hidden data after MBR and before 1st partition for later use.
    if [ "$pt_type" = "mbr" ]; then
      if [ "$clone_hidden_data" = "yes" ]; then
        save_hidden_data_after_MBR $source_hd $src_hidden_img
      fi
    fi

    # GPT
    if [ "$pt_type" = "gpt" ]; then
      echo "Saving the GPT of /dev/$source_hd as $src_gpt_gdisk by sgdisk..." | tee --append ${OCS_LOGFILE}
      LC_ALL=C sgdisk -b $src_gpt_gdisk /dev/$source_hd | tee --append ${OCS_LOGFILE}

      echo "Saving the primary GPT of /dev/$source_hd as $src_1st_gpt by dd..." | tee --append ${OCS_LOGFILE}
      LC_ALL=C dd if=/dev/$source_hd of=$src_1st_gpt bs=512 count=34 | tee --append ${OCS_LOGFILE}
      echo "Saving the secondary GPT of /dev/$source_hd as $src_2nd_gpt by dd..." | tee --append ${OCS_LOGFILE}
      src_disk_size_sec="$(LC_ALL=C parted -s /dev/$source_hd unit s print | grep -E "^Disk /dev/" | awk -F":" '{print $2}' | sed -e "s/s$//g")"
      src_to_skip="$((${src_disk_size_sec}-33+1))"
      LC_ALL=C dd if=/dev/$source_hd of=$src_2nd_gpt skip=${src_to_skip} bs=512 count=33 | tee --append ${OCS_LOGFILE}
    fi

    echo $msg_delimiter_star_line
    # output the filesystem of partition to be refered by client. Ex:
    # /dev/hda1 reiserfs
    # /dev/hda2 ext3
    # Here we should use /proc/partitions instead of partition table since GPT won't be in the output of sfdisk
    # major minor  #blocks  name
    #
    #   8     0  156290904 sda
    #   8     1   92526336 sda1
    #   8     2    9767520 sda2
    #   8     3    1951897 sda3
    #   8     4          1 sda4
    #   8     5   52042536 sda5
    #   8    16  244198584 sdb
    #   8    17  244196001 sdb1

    gen_proc_partitions_map_file
    part_in_hd="$(get_part_list $partition_table)"
    # For multiple disks, part_in_hd might contain partitions from different
    # disks, e.g. "sda3 nvme1n1p2"
    for part in $part_in_hd; do
      if [ -z "$(echo $part | grep -E "$source_hd")" ]; then
        # We should process only the partitions from source disk
        # E.g. sda3 is from sda, nvme1n1p2 is from disk nvme1n1.
        continue
      fi
      echo "Collecting partition /dev/$part info..." | tee --append ${OCS_LOGFILE}
      filesystem="$(LC_ALL=C ocs-get-part-info /dev/$part filesystem)"
      pt_size="$(LC_ALL=C ocs-get-part-info /dev/$part size)"
      echo "/dev/$part $filesystem $size" >> $hd_src_tmp/src_partition.info
    done
    # SWAP partition info, maybe more than 1
    swap_in_hd="$(awk -F" " '/swap/ {print $1}' $src_pt_info | sed -r -e 's|/dev/||g')"
    for partition in $swap_in_hd; do
      echo "Outputing swap UUID/LABEL..."
      output_swap_partition_uuid_label /dev/$partition $hd_src_tmp/swappt-${partition}.info
    done

    # Output the extended boot record (EBR) in case it contains grub boot loader
    if [ "$pt_type" = "mbr" ]; then
      extended_pt_in_hd="$(get_extended_partition_parted_format $src_parted_info)"
      # Extended partition should have one only in a disk.
      if [ -n "$extended_pt_in_hd" ]; then
        LC_ALL=C dd if=/dev/$extended_pt_in_hd of=$src_extpt_ebr bs=512 count=1 &> /dev/null
      fi
    fi

    # Save EFI NVRAM info. What we need is actually the label
    # Only if dir /sys/firmware/efi/efivars exists, the data exist in EFI NVRAM 
    if [ -d "/sys/firmware/efi/efivars" ]; then
      LC_ALL=C efibootmgr -v 2>/dev/null > $src_efi_nvram_data
    fi

    # LVM
    PV_PARSE_CONF="$hd_src_tmp/lvm_vg_dev.list"
    LOGV_PARSE_CONF="$hd_src_tmp/lvm_logv.list"
    ocs-lvm2-start
    echo "Parsing LVM layout..."
    pvscan | grep lvm2 | while read LINE; do
      DEV=`echo $LINE | tr -s ' ' | cut -d' ' -f2`
      VG=`echo $LINE | tr -s ' ' | cut -d' ' -f4`
      # DEV is like /dev/hda2
      # We just want to keep the chosen source dev
      # The results in $PV_PARSE_CONF is like:
      # ----------------------------------------------------
      # vg /dev/hda2 qdlt6U-M4bo-xExy-XG9Q-U7pg-bOXN-n54i5Y
      # ----------------------------------------------------
      # Ex: target: hda1 hda2 hda3, DEV maybe: /dev/hda2
      if [ -n "$(echo "$DEV" | grep -E "$source_hd")" ]; then
        UUID="$(pvdisplay $DEV | grep "PV UUID" | awk -F" " '{print $3}')"
        echo "$VG $DEV $UUID" | tee -a $PV_PARSE_CONF
      fi
    done
    
    if [ -e "$PV_PARSE_CONF" ]; then
      # We just want the LV in chosen target
      echo "Parsing logical volumes..."
      # lvscan results are like:
      # ACTIVE            '/dev/vg3/lvol0' [1.20 GB] inherit
      # ACTIVE            '/dev/vg3/lvol1' [648.00 MB] inherit
      # ACTIVE            '/dev/vg/lvol0' [1.50 GB] inherit
      # ACTIVE            '/dev/vg/lvol1' [500.00 MB] inherit
      #                         ^^ The VG
      
      # find LV for chosen PV.
      lvscan | grep "/.*/" | while read LINE; do
        LOGV=`echo $LINE |tr -s ' ' | cut -d' ' -f2 | tr -d "'"`
        # LOGV is like: /dev/vg3/lvol0
        while read vg dev uuid; do
         # only keep LOGV is in the chosen vg
         if [ -n "$(echo $LOGV | grep -E "/dev/$vg/" 2>/dev/null)" ]; then
          file_system="$(LC_ALL=C ocs-get-part-info $LOGV filesystem)"
          echo "$LOGV $file_system" | tee -a $LOGV_PARSE_CONF
	  # if it's swap, output the labe and uuid only.
	  case "$file_system" in 
            *[Ss][Ww][Aa][Pp]*)
              fn="$(echo $LOGV | sed -e "s|^/dev/||" -e "s|/|-|g")"
              output_swap_partition_uuid_label $LOGV $hd_src_tmp/swappt-${fn}.info
              continue ;;
            *extended*) 
              continue ;;
          esac
          break
         fi 
        done < $PV_PARSE_CONF
      done
      
      # Backup the vg conf
      echo "Saving the VG config... "
      while read vg dev uuid; do
        vgcfgbackup -f $hd_src_tmp/lvm_$vg.conf $vg 2>/dev/null
      done < $PV_PARSE_CONF
      echo "done!"
    fi
    cat <<-ADVAN_PARAM_END > $hd_src_tmp/advanced_param.conf
source_hd="$source_hd"
# batch_mode should be local variable. It's decided by client.
# batch_mode="$batch_mode" 
install_grub="$install_grub"
grub_partition="$grub_partition" 
change_ntfs_boot_chs="$change_ntfs_boot_chs"
ntfs_boot_partition="$ntfs_boot_partition"
use_HD_CHS_from_EDD_pref="$use_HD_CHS_from_EDD_pref"
create_part="$create_part" 
create_part_type="$create_part_type"
CLONE_BOOT_LOADER="$CLONE_BOOT_LOADER" 
resize_partition="$resize_partition" 
load_HD_CHS_from_img="$load_HD_CHS_from_img" 
nogui="$nogui" 
verbose="$verbose" 
clone_hidden_data="$clone_hidden_data"
ADVAN_PARAM_END
    ocs-lvm2-stop
    # pack all the info files
    ( 
      cd $hd_src_tmp/
      tar czf ocs-onthefly-info.tgz *
    )
    # wait for client to download it
    cat $hd_src_tmp/ocs-onthefly-info.tgz | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &
    NC_PORT=$((NC_PORT + 2))
  elif [ "$STATUS" = "clone_client" ]; then
    # partition table and info
    # For source dik
    src_pt_tmp="$hd_tgt_tmp/src_pt.sf"
    src_pt_info="$hd_tgt_tmp/src_partition.info"
    src_parted_info="$hd_tgt_tmp/src-pt.parted"
    src_blkdev_info="$hd_tgt_tmp/src-blkdev.list"
    src_1st_gpt="$hd_tgt_tmp/src-gpt-1st.img"
    src_2nd_gpt="$hd_tgt_tmp/src-gpt-2nd.img"
    src_gpt_gdisk="$hd_tgt_tmp/src-gpt.gdisk"
    src_hidden_img="$hd_tgt_tmp/src_hidden-data.img"
    src_dsk_mbr="$hd_tgt_tmp/src-mbr"
    src_extpt_ebr="$hd_tgt_tmp/src-exept-ebr"
    src_dsk_chs="$hd_tgt_tmp/src-chs.sf"
    src_efi_nvram_data="$hd_tgt_tmp/src-efi-nvram.dat"  
    # For target dik
    tgt_pt_tmp="$hd_tgt_tmp/tgt-pt.sf"
    tgt_pt_info="$hd_tgt_tmp/tgt_partition.info"
    tgt_parted_info="$hd_tgt_tmp/tgt-pt.parted"
    tgt_blkdev_info="$hd_tgt_tmp/tgt-blkdev.list"
    tgt_1st_gpt="$hd_tgt_tmp/tgt-gpt-1st.img"
    tgt_2nd_gpt="$hd_tgt_tmp/tgt-gpt-2nd.img"
    tgt_gpt_gdisk="$hd_tgt_tmp/tgt-gpt.gdisk"
    tgt_hidden_img="$hd_tgt_tmp/tgt_hidden-data.img"
    tgt_dsk_mbr="$hd_tgt_tmp/${target_hd}-mbr"
    tgt_extpt_ebr="$hd_tgt_tmp/tgt-exept-ebr"
    tgt_dsk_chs="$hd_tgt_tmp/${target_hd}-chs.sf"
    tgt_efi_nvram_data="$hd_tgt_tmp/tgt-efi-nvram.dat"  

    # Get the pt and mbr... from server
    $NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT > $hd_tgt_tmp/ocs-onthefly-info.tgz
    NC_PORT=$((NC_PORT + 2))
    if [ ! -f "$hd_tgt_tmp/ocs-onthefly-info.tgz" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "The partition table, MBR infomation is not received from another machine (IP address $SOURCE_IP)!" | tee --append ${OCS_LOGFILE}
      echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      exit 1
    fi
    ( 
      cd $hd_tgt_tmp/
      tar -xzf ocs-onthefly-info.tgz
    )
    # read advanced param passed from server
    . $hd_tgt_tmp/advanced_param.conf

    # swap partition info
    for iswap in $hd_tgt_tmp/swappt-*.info; do
      # $hd_tgt_tmp/swappt-${partition}.info
      s_swpname="${iswap#/dev/*}"
      if [ "$target_hd" != "$source_hd" ]; then
        t_swpname="$(echo $s_swpname | replace_disk_name_stdin "-$source_hd" "-$target_hd")"
        cp -f $hd_tgt_tmp/$s_swpname $hd_tgt_tmp/$t_swpname
      fi
    done

    # change the dev to target in the $pt_tmp nd $pt_info
    [ -f "$src_pt_tmp" ] && cp -f $src_pt_tmp $tgt_pt_tmp
    [ -f "$src_parted_info" ] && cp -f $src_parted_info $tgt_parted_info
    [ -f "$src_blkdev_info" ] && cp -f $src_blkdev_info $tgt_blkdev_info
    [ -f "$src_pt_info" ] && cp -f $src_pt_info $tgt_pt_info
    [ -f "$src_1st_gpt" ] && cp -f $src_1st_gpt $tgt_1st_gpt
    [ -f "$src_2nd_gpt" ] && cp -f $src_2nd_gpt $tgt_2nd_gpt
    [ -f "$src_gpt_gdisk" ] && cp -f $src_gpt_gdisk $tgt_gpt_gdisk
    [ -f "$src_hidden_img" ] && cp -f $src_hidden_img $tgt_hidden_img
    [ -f "$src_dsk_mbr" ] && cp -f $src_dsk_mbr $tgt_dsk_mbr
    [ -f "$src_extpt_ebr" ] && cp -f $src_extpt_ebr $tgt_extpt_ebr
    [ -f "$src_dsk_chs" ] && cp -f $src_dsk_chs $tgt_dsk_chs
    [ -e "$tgt_pt_tmp" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_pt_tmp
    [ -e "$tgt_pt_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_pt_info
    [ -e "$tgt_parted_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_parted_info
    [ -e "$tgt_blkdev_info" ] && replace_disk_name_in_file $source_hd $target_hd $tgt_blkdev_info
    [ -f "$src_efi_nvram_data" ] && cp -f $src_efi_nvram_data $tgt_efi_nvram_data

    # Decide use_HD_CHS_from_EDD
    # From use_HD_CHS_from_EDD_pref we will decide if use_HD_CHS_from_EDD is yes or no. The rule is if we find the target disk does _NOT_ contain grub boot loader, set use_HD_CHS_from_EDD as yes, others, set it as no. This is because we will re-run grub-install by deafult.
    if [ "$use_HD_CHS_from_EDD_pref" = "yes" ]; then
      if [ -z "$(LC_ALL=C strings $hd_tgt_tmp/${target_hd}-mbr | grep -i "grub")" ]
      then
        # It's not grub boot loader, set use_HD_CHS_from_EDD as yes
        echo "Non-grub boot loader found on $hd_tgt_tmp/${target_hd}-mbr..." | tee --append $OCS_LOGFILE
        echo "The CHS value of hard drive from EDD will be used for sfdisk." | tee --append $OCS_LOGFILE
	use_HD_CHS_from_EDD="yes"
      fi
    fi
    get_sfdisk_cyl_opt_flag  # sfdisk_cyl_opt_flag will be got.
    # get sfdisk_opt if load_HD_CHS_from_img is yes
    if [ "$use_HD_CHS_from_EDD" = "yes" ]; then
      if [ "$sfdisk_cyl_opt_flag" = "yes" ]; then
        rawhead=""
        rawsector=""
        rawcylinder=""
        get_RawCHS_of_HD_from_EDD /dev/$target_hd
        if [ -n "$rawhead" -a -n "$rawsector" -a -n "$rawcylinder" ]; then
          sfdisk_opt="$sfdisk_opt -C $rawcylinder -H $rawhead -S $rawsector"
        else
          echo "No CHS value was found from EDD info for disk /dev/$target_hd." | tee --append $OCS_LOGFILE
        fi
      else
        echo "Sfdisk >= 2.26 does not support C/H/S option. Skip using C/H/S option." | tee --append $OCS_LOGFILE
      fi
    elif [ "$load_HD_CHS_from_img" = "yes" ]; then
      if [ "$sfdisk_cyl_opt_flag" = "yes" ]; then
        # Append the CHS to variable "$sfdisk_opt" if CHS can be find in the image dir.
        load_HD_geometry_opt_from_image $hd_tgt_tmp/ $target_hd
      else
        echo "Sfdisk >= 2.26 does not support C/H/S option. Skip using C/H/S option." | tee --append $OCS_LOGFILE
      fi
    fi
  fi
} # end of prepare_network_clone_dev_info
#
force_to_dd_clone_local_part() {
  local cmd_partclone
  case "$S2S_CLONE_PROG_IN_OCS_ONTHEFLY" in 
   dd)
    echo "Filesystem in $src_p is not well supported. Use dd to clone..." | tee --append $OCS_LOGFILE
    dd_img_info_tmp="$(mktemp /tmp/dd_info.XXXXXX)"
    pt_size="$(LC_ALL=C ocs-get-part-info $tgt_p size)"
    trigger_dd_status_report $tgt_p $pt_size &
    dd_report_sig_pid=$!
    start_time="$(date +%s%N)"
    LC_ALL=C dd bs=1M if=$src_p of=$tgt_p 2>&1 | tee $dd_img_info_tmp
    ret=$?
    end_time="$(date +%s%N)"
    kill -9 $dd_report_sig_pid &>/dev/null
    get_dd_image_info $dd_img_info_tmp $start_time $end_time
    [ -f "$dd_img_info_tmp" ] && rm -f $dd_img_info_tmp
    ;;
   partclone)
    echo "Using partclone to clone the file system sector by sector..." | tee --append $OCS_LOGFILE 
    cmd_partclone="partclone.dd $PARTCLONE_RESTORE_ONTHEFLY_OPT -L $partclone_log -s $src_p -O $tgt_p"
    echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
    LC_ALL=C eval "(${cmd_partclone} && exit \${PIPESTATUS[0]})"
    ret=$?
    cat "${partclone_log}" >> ${OCS_LOGFILE}
    ;;
  esac
} # end of force_to_dd_clone_local_part
#
local_partition_to_partiton_clone() {
  local pt_fs="$1"
  local src_p="$2"  # src_p is like /dev/hda1
  local tgt_p="$3"  # tgt_p is like /dev/hdb1
  local pt_size ret dd_img_info_tmp dd_report_sig_pid start_time end_time partition
  local cmd_partclone
  if [ -z "$pt_fs" -o -z "$src_p" -o -z "$tgt_p" ]; then
    echo "Wrong options in local_partition_to_partiton_clone!!!" | tee --append $OCS_LOGFILE
    echo "$msg_program_stop!" | tee --append ${OCS_LOGFILE}
    exit 1
  fi
  [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
  echo "Source partition file system is $pt_fs..." | tee --append $OCS_LOGFILE
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL

  echo "Cloning the $src_p to $tgt_p..." | tee --append $OCS_LOGFILE
  clean_filesystem_header_in_partition $tgt_p
  # From partimage 0.6.6, batch mode won't stop if checkInodeForDevice is not run. Therefore comment it.
  # checkInodeForDevice $tgt_p
  # Before we start to clone, check if kernel can find /dev/$partition
  partition="${tgt_p#/dev/*}"
  gen_proc_partitions_map_file
  if [ -z "$(grep -Ew "$partition" $partition_table 2>/dev/null)" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "$msg_failed_to_find_this_partition: /dev/$partition" | tee --append $OCS_LOGFILE
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
    echo "The /proc/partitions in this system:" | tee --append $OCS_LOGFILE
    cat /proc/partitions | tee --append $OCS_LOGFILE
    echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "$msg_the_partition_table_does_not_exist_option" | tee --append $OCS_LOGFILE
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo -n "$msg_press_enter_to_continue..."
    read
    continue
  fi
  echo "$msg_delimiter_star_line"
  if [ "$FORCE_TO_USE_DD" = "yes" ]; then
    force_to_dd_clone_local_part
  elif [ "$USE_NTFSCLONE_IN_OCS_ONTHEFLY" = "yes" ] && [ "$pt_fs" = "ntfs" ]; then
    echo "Using ntfsclone to clone..."  
    check_ntfs_partition_integrity $src_p
    ntfsclone --save-image --output - $src_p 2>/dev/null | \
    ntfsclone $ntfsclone_progress_option --restore-image --overwrite $tgt_p -
    ret=$?
  elif [ "$USE_PARTCLONE_IN_OCS_ONTHEFLY" = "yes" ] && `is_partclone_support_fs $pt_fs`; then
    # Ex: partclone.reiserfs -b -s /dev/hda3 -O /dev/hdc1
    echo "Using partclone to clone..." | tee --append $OCS_LOGFILE
    cmd_partclone="partclone.${pt_fs} $PARTCLONE_RESTORE_ONTHEFLY_OPT -L $partclone_log -b -s $src_p -O $tgt_p"
    echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
    LC_ALL=C eval "(${cmd_partclone} && exit \${PIPESTATUS[0]})"
    ret=$?
    cat "${partclone_log}" >> ${OCS_LOGFILE}
  elif `is_partimage_support_fs $pt_fs`; then
    echo "Using partimage to clone..."  
    partimage $DEFAULT_STDOUT_PARTIMAGE_SAVE_OPT save $src_p stdout 2> /dev/null | \
    partimage $DEFAULT_STDIN_PARTIMAGE_RESTORE_OPT $PARTIMAGE_RESTORE_ONTHEFLY_OPT restore $tgt_p stdin
    ret=$?
  else
    local_lvm_clone_warning
    # Unknown file system, use dd or partclone.dd	   
    force_to_dd_clone_local_part
  fi
  echo "$msg_delimiter_star_line"
  if [ "$ret" -ge 1 ]; then
     [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
     echo "Failed to clone $src_p to $tgt_p" | tee --append $OCS_LOGFILE
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     echo "$msg_press_enter_to_continue..."
     read
  fi
  return $ret
} # end of local_partition_to_partiton_clone
#
local_dev_clone() {
  # TODO!
  # local LVM clone not yet. The difficulty is in the same system, VG can not use the same UUID. If we clone hda to hdb, VG in hda will have same UUID with that in hdb. Therefore in this function, dd is the last choice temporarily.
  case "$source_type" in
    partition)
       part_fs="$(grep -Ew "/dev/$src_dev" $src_pt_info | awk -F" " '{print $2}')"
       if [ -z "$part_fs" ]; then
          [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
	  echo "No file system was found in /dev/$src_dev!" | tee --append $OCS_LOGFILE
          [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
          local_partition_to_partiton_clone unknown /dev/$src_dev /dev/$tgt_dev
	  # Unknown file system, no way to mount to inspect the checksum. Skip it here.
       else
          local_partition_to_partiton_clone $part_fs /dev/$src_dev /dev/$tgt_dev
          if [ "$chksum_for_files_in_dev" = "yes" ]; then
            echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
            inspect_chksum_for_files_in_dev /dev/$tgt_dev "$hd_tgt_tmp"
            echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
	  fi
       fi
       ;;
    disk)
       echo $msg_delimiter_star_line
       BACKUP_DEVS=""
       echo "Searching for data partition(s) in source disk: $source_hd ..." | tee --append $OCS_LOGFILE
       get_known_partition_proc_format $source_hd data
       echo $msg_delimiter_star_line
       target_part_list="$(echo $BACKUP_DEVS | replace_disk_name_stdin $source_hd $target_hd)"
       for target_part in $target_part_list; do
         # we need to know the source partition, so replace it, ex. hdc1 -> hda1
         # Ex: target_part: hdc1, hddev: hdc, part_no: 1, src_part: hda1
         hddev="$(get_diskname $target_part)"
         part_no="$(get_part_number $target_part)"
         src_part="$(LC_ALL=C echo $target_part | replace_disk_name_stdin $hddev $source_hd)"
         part_fs="$(LC_ALL=C grep -Ew "/dev/$target_part" $tgt_pt_info | awk -F" " '{print $2}')"
         if [ -z "$part_fs" ]; then
            [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
            echo "No file system was found in /dev/$src_part!" | tee --append $OCS_LOGFILE
            [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
            local_partition_to_partiton_clone unknown /dev/$src_part /dev/$target_part
	    # Unknown file system, no way to mount to inspect the checksum. Skip it here.
         else
            local_partition_to_partiton_clone $part_fs /dev/$src_part /dev/$target_part
            if [ "$chksum_for_files_in_dev" = "yes" ]; then
              echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
              inspect_chksum_for_files_in_dev /dev/$target_part "$hd_tgt_tmp"
              echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
	    fi
         fi
       done
       ;;
  esac
} # end of local_dev_clone
#
feed_dev_in_server() {
  local pt_fs="$1"
  local src_p="$2"  # src_p is like /dev/hda1
  local ret
  local cmd_partclone
  echo "Feeding partition $src_p in listen mode with port $NC_PORT..." | tee --append $OCS_LOGFILE
  if [ "$USE_NTFSCLONE_IN_OCS_ONTHEFLY" = "yes" ] && [ "$pt_fs" = "ntfs" ]; then
    echo "Using ntfsclone to clone..." | tee --append $OCS_LOGFILE
    check_ntfs_partition_integrity $src_p
    ntfsclone --save-image --output - $src_p 2>/dev/null | \
    $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &
    ret=$?
  elif [ "$USE_PARTCLONE_IN_OCS_ONTHEFLY" = "yes" ] && `is_partclone_support_fs $pt_fs`; then
    # Ex: partclone.reiserfs -c -s /dev/hda3 -o -
    echo "Using partclone to clone..." | tee --append $OCS_LOGFILE
    cmd_partclone="partclone.${pt_fs} -L $partclone_log -c -s $src_p -o - 2>/dev/null | \
    $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &"
    echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
    LC_ALL=C eval "((${cmd_partclone}) && exit \${PIPESTATUS[0]})"
    ret=$?
    # Since we run partclone in the background, it's useless to cat the log now.
    # cat "${partclone_log}" >> ${OCS_LOGFILE}
  elif `is_partimage_support_fs $pt_fs`; then
    echo "Using partimage to clone..."  
    [ "$verbose" = "on" ] && echo "partimage $DEFAULT_STDOUT_PARTIMAGE_SAVE_OPT save $src_p stdout 2> /dev/null | $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &"
    partimage $DEFAULT_STDOUT_PARTIMAGE_SAVE_OPT save $src_p stdout 2> /dev/null | \
    $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &
    ret=$?
  else
    case "$S2S_CLONE_PROG_IN_OCS_ONTHEFLY" in 
     dd)
      echo "Filesystem in $src_p is not well supported. Use dd to clone..." | tee --append $OCS_LOGFILE
      LC_ALL=C dd bs=1M if=$src_p | \
      $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &
      ret=$?
      ;;
     partclone)
      echo "Filesystem in $src_p is not well supported. Use partclone.dd to clone..." | tee --append $OCS_LOGFILE 
      # Ex: partclone.reiserfs -c -s /dev/hda3 -o -
      echo "Using partclone to clone..." | tee --append $OCS_LOGFILE
      cmd_partclone="partclone.dd -L $partclone_log -s $src_p -o - 2>/dev/null | \
      $filter_comp | $NC_CMD -l $NC_LOCAL_PORT_OPT $NC_PORT &"
      echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
      LC_ALL=C eval "((${cmd_partclone}) && exit \${PIPESTATUS[0]})"
      ret=$?
      # Since we run partclone in the background, it's useless to cat the log now.
      #cat "${partclone_log}" >> ${OCS_LOGFILE}
      ;;
    esac
  fi
  echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE
  if [ "$ret" -ge 1 ]; then
     [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
     echo "Failed to feeding partition $src_p in this server" | tee --append $OCS_LOGFILE
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     echo "$msg_press_enter_to_continue..."
     read
  fi
  return $ret
} # end of feed_dev_in_server
#
receive_partition_from_server_then_write() {
  local	pt_fs="$1"
  local tgt_p="$2"  # tgt_p is like /dev/hda1
  local ret pt_size
  local cmd_partclone
  echo "$msg_delimiter_star_line"
  echo "Restoring $tgt_p from $SOURCE_IP:$NC_PORT..."
  clean_filesystem_header_in_partition $tgt_p
  # From partimage 0.6.6, batch mode won't stop if checkInodeForDevice is not run. Therefore comment it.
  # checkInodeForDevice $tgt_p
  echo "$msg_delimiter_star_line"
  if [ "$USE_NTFSCLONE_IN_OCS_ONTHEFLY" = "yes" ] && [ "$pt_fs" = "ntfs" ]; then
    echo "Using ntfsclone to clone..." | tee --append $OCS_LOGFILE 
    $NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | \
    ntfsclone $ntfsclone_progress_option --restore-image --overwrite $tgt_p -
    ret=$?
  elif [ "$USE_PARTCLONE_IN_OCS_ONTHEFLY" = "yes" ] && `is_partclone_support_fs $pt_fs`; then
    # Ex: partclone.reiserfs -s - -o /dev/hdc1
    echo "Using partclone.${pt_fs} to clone..." | tee --append $OCS_LOGFILE 
    cmd_partclone="$NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | \
    partclone.${pt_fs} $PARTCLONE_RESTORE_ONTHEFLY_OPT -L $partclone_log -s - -r -o $tgt_p"
    echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
    LC_ALL=C eval "(${cmd_partclone} && exit \${PIPESTATUS[0]})"
    ret=$?
    cat "${partclone_log}" >> ${OCS_LOGFILE}
  elif `is_partimage_support_fs $pt_fs`; then
    echo "Using partimage to clone..."  
    [ "$verbose" = "on" ] && echo "$NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | partimage $DEFAULT_STDIN_PARTIMAGE_RESTORE_OPT $PARTIMAGE_RESTORE_ONTHEFLY_OPT restore $tgt_p stdin"
    $NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | \
    partimage $DEFAULT_STDIN_PARTIMAGE_RESTORE_OPT $PARTIMAGE_RESTORE_ONTHEFLY_OPT restore $tgt_p stdin
    ret=$?
  else
    # Unknown file system, use dd or partclone.dd
    case "$S2S_CLONE_PROG_IN_OCS_ONTHEFLY" in 
     dd)
      echo "Filesystem in $src_p is not well supported. Use dd to clone..." | tee --append $OCS_LOGFILE 
      pt_size="$(grep -Ew "$tgt_p" $tgt_pt_info | awk -F" " '{print $3}')"
      trigger_dd_status_report $tgt_p $pt_size &
      $NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | \
      LC_ALL=C dd bs=1M of=$tgt_p
      ret=$?
      ;;
     partclone)
      echo "Using partclone.dd to do sector-by-sector cloning..."  
      cmd_partclone="$NC_CMD $NC_CLIENT_EXTRA_OPT $SOURCE_IP $NC_PORT | $filter_decomp | \
      partclone.dd $PARTCLONE_RESTORE_ONTHEFLY_OPT -L $partclone_log -s - -o $tgt_p"
      echo "Run partclone: $cmd_partclone" | tee --append ${OCS_LOGFILE}
      LC_ALL=C eval "(${cmd_partclone} && exit \${PIPESTATUS[0]})"
      ret=$?
      cat "${partclone_log}" >> ${OCS_LOGFILE}
      ;;
    esac
  fi
  if [ "$ret" -ge 1 ]; then
     [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
     echo "Failed to clone remote image to $tgt_p" | tee --append $OCS_LOGFILE
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     echo "$msg_press_enter_to_continue..."
     read
  fi
  return $ret
} # end of receive_partition_from_server_then_write
#
feed_partition_or_lv_in_server() {
  local pt_fs="$1"
  local src_p="$2" # src_p is like hda1
  local lv volg is_in_chosen_partition fs
  # $NC_PORT & $LOGV_PARSE_CONF are global variables.
  [ -z "$pt_fs" ] && echo "pt_fs not found in function feed_partition_or_lv_in_server!" && exit 1
  [ -z "$src_p" ] && echo "src_p not found in function feed_partition_or_lv_in_server!" && exit 1
  if [ -z "$(echo "$pt_fs" | grep -i lvm)" ]; then
    feed_dev_in_server $pt_fs /dev/$src_p
    # use the next port to avoid being occupied.
    NC_PORT=$((NC_PORT + 2))
  else
    ocs-lvm2-start
    # To avoid the stdin/stdout with ntfsclone/partimage/partclone (feed_dev_in_server $fs $lv) conflicting with "while read", here we must use different file descriptor (3)
    exec 3< $LOGV_PARSE_CONF
    while read -u 3 lv fs; do
     # Process the real data partition, only those in the chosen partitions
     # Ex:
     # /dev/vg3/lvol0  Linux rev 1.0 ext3 filesystem data (large files)
     # Then lvol0 is belong to VG vg3
     volg="$(echo "$lv" | awk -F"/" '{print $3}')"
     # Find if the LV is in the chosen partition (via VG, we can determine that)
     # EX: tgt_parts: hda1, hda3, hda5...
     #     vg3 /dev/hda3 nPMQQ0-D2yN-YRHL-9fBM-0cUm-vgcw-DCUTri
     is_in_chosen_partition="no"
     for ipt in $src_p; do
       if [ -n "$(grep -E "[[:space:]]+/dev/$ipt[[:space:]]+" $PV_PARSE_CONF | grep -E "\<$volg\>")" ]; then
         # Found the chosen partitions is in the VG
         is_in_chosen_partition="yes"
         break
       fi
     done
     [ "$is_in_chosen_partition" = "no" ] && continue
     # if it's swap, output the labe and uuid only.
     case "$fs" in 
       *[Ss][Ww][Aa][Pp]*|*extended*)
         continue ;;
     esac
     feed_dev_in_server $fs $lv
     # use the next port to avoid being occupied.
     NC_PORT=$((NC_PORT + 2))
    done
    exec 3<&-
  fi
} # end of feed_partition_or_lv_in_server() {
#
receive_partition_or_lv_in_client() {
 local pt_fs="$1"
 local tgt_p="$2" # tgt_p is like hda1
 local vg dev uuid lv fs fn uuid_opt label_opt pv_pse_con logv_pse_con lvm_tmp
 # $NC_PORT & $hd_tgt_tmp are global variables.
 if [ -z "$(echo "$pt_fs" | grep -i lvm)" ]; then
   receive_partition_from_server_then_write $pt_fs /dev/$tgt_p
   # use the next port to avoid being occupied.
   NC_PORT=$((NC_PORT + 2))
 else
   pv_pse_con="$hd_tgt_tmp/lvm_vg_dev.list"
   logv_pse_con="$hd_tgt_tmp/lvm_logv.list"
   [ ! -f "$pv_pse_con" ] && echo "$pv_pse_con NOT found!" && exit 1
   [ ! -f "$logv_pse_con" ] && echo "$logv_pse_con NOT found!" && exit 1
   ocs-lvm2-stop

   # Clean the filesystem header in partition where PV exists
   # This is an insurance, since later when we use partimage/ntfsclone to clone, it will not overwrite file header in that partition, it will only overwrite the data in LV. Then parted, blkid will give wrong info.
   while read lv fs; do
    # Process the real data partition, only those in the chosen partitions
    # Ex:
    # /dev/vg3/lvol0  Linux rev 1.0 ext3 filesystem data (large files)
    # Then lvol0 is belong to VG vg3
    volg="$(echo "$lv" | awk -F"/" '{print $3}')"
    # Find if the LV is in the chosen partition (via VG, we can determine that)
    # EX: tgt_parts: hda1, hda3, hda5...
    #     vg3 /dev/hda3 nPMQQ0-D2yN-YRHL-9fBM-0cUm-vgcw-DCUTri
    is_in_chosen_partition="no"
    for ipt in $tgt_p; do
      if [ -n "$(grep -E "[[:space:]]+/dev/$ipt[[:space:]]+" $pv_pse_con | grep -E "\<$volg\>")" ]; then
        # Found the chosen partitions is in the VG
        clean_filesystem_header_in_partition /dev/$ipt
      fi
    done
   done < $logv_pse_con

   lvm_tmp="$(mktemp -d /tmp/ocs_lvm_tmp.XXXXXX)"
   # create PV first
   echo "Creating the PV... "
   while read vg dev uuid; do
     cp -f $hd_tgt_tmp/lvm_$vg.conf $lvm_tmp/  # Since mmap function maybe not available on remote disk (Ex. image is on samba disk). We have to copy the config file to local disk. Thanks to Gerald HERMANT <ghermant _at_ astrel fr> for reporting this bugs.
     #pvcreate -ff --yes --uuid $uuid $dev
     pvcreate -ff --yes --uuid $uuid --zero y --restorefile $lvm_tmp/lvm_$vg.conf $dev
     rm -f $lvm_tmp/lvm_$vg.conf
   done < $pv_pse_con
   echo "done!"

   # Restore the vg conf
   echo "Restoring the VG config... "
   while read vg dev uuid; do
     cp -f $hd_tgt_tmp/lvm_$vg.conf $lvm_tmp/  # Since mmap function maybe not available on remote disk (Ex. image is on samba disk). We have to copy the config file to local disk. Thanks to Gerald HERMANT <ghermant _at_ astrel fr> for reporting this bugs.
     # vgcfgrestore -f $hd_tgt_tmp/lvm_$vg.conf $vg 2>/dev/null
     vgcfgrestore -f $lvm_tmp/lvm_$vg.conf $vg 2>/dev/null
     rm -f $lvm_tmp/lvm_$vg.conf
   done < $pv_pse_con
   [ -d "$lvm_tmp" -a -n "$(echo $lvm_tmp | grep "ocs_lvm_tmp")" ] && rm -rf $lvm_tmp
   echo "done!"

   ocs-lvm2-start
   # To avoid the stdin/stdout with ntfsclone/partimage/partclone (feed_dev_in_server $fs $lv) conflicting with "while read", here we must use different file descriptor (4)
   exec 4< $logv_pse_con
   while read -u 4 lv fs; do
    # Process the real data partition, only those in the chosen partitions
    # Ex:
    # /dev/vg3/lvol0  Linux rev 1.0 ext3 filesystem data (large files)
    # Then lvol0 is belong to VG vg3
    volg="$(echo "$lv" | awk -F"/" '{print $3}')"
    # Find if the LV is in the chosen partition (via VG, we can determine that)
    # EX: tgt_parts: hda1, hda3, hda5...
    #     vg3 /dev/hda3 nPMQQ0-D2yN-YRHL-9fBM-0cUm-vgcw-DCUTri
    is_in_chosen_partition="no"
    for ipt in $tgt_p; do
      if [ -n "$(grep -E "[[:space:]]+/dev/$ipt[[:space:]]+" $pv_pse_con | grep -E "\<$volg\>")" ]; then
        # Found the chosen partitions is in the VG
        is_in_chosen_partition="yes"
        break
      fi
    done
    [ "$is_in_chosen_partition" = "no" ] && continue

    # Only when the target_type is disk we will create swap partition, other we might make a mistake to format the existing partition as swap partition.
    if [ "$target_type" = "disk" ]; then
      # if it's swap, output the labe and uuid only.
      case "$fs" in 
        *[Ss][Ww][Aa][Pp]*)
          fn="$(echo $lv | sed -e "s|^/dev/||" -e "s|/|-|g")"
          echo "Found the swap partition $lv, create it by:"
          # read LABEL, UUID info for $partition if swappt-${fn}.info exists
          uuid_opt=""
          label_opt=""
          if [ -e "$hd_tgt_tmp/swappt-${fn}.info" ]; then
            UUID=""
            LABEL=""
            . "$hd_tgt_tmp/swappt-${fn}.info"
            [ -n "$UUID" ] && uuid_opt="-U $UUID"
            [ -n "$LABEL" ] && label_opt="-L $LABEL"
          fi
          echo "mkswap $label_opt $uuid_opt $lv"
          mkswap $label_opt $uuid_opt $lv
          echo $msg_delimiter_star_line
          continue ;;
        *extended*) 
          continue ;;
      esac
    fi
    receive_partition_from_server_then_write $fs $lv
    # use the next port to avoid being occupied.
    NC_PORT=$((NC_PORT + 2))
   done
   exec 4<&-
 fi
} # end of receive_partition_or_lv_in_client
#
clone_over_net() {
  local fn example_target ipart part_fs size
  # try to get the client's type
  case "$source_type" in
    partition)
       if [ "$STATUS" = "clone_server" ]; then
         echo "Running the clone server for $src_dev in port $NC_PORT..." | tee --append $OCS_LOGFILE
         part_fs="$(grep -Ew "/dev/$src_dev" $src_pt_info | awk -F" " '{print $2}')"
         if [ -z "$part_fs" ]; then
            [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
            echo "No file system was found in /dev/$src_dev!" | tee --append $OCS_LOGFILE
            echo "Skip feeding $src_dev..." | tee --append $OCS_LOGFILE
            [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         else
	    feed_partition_or_lv_in_server $part_fs $src_dev
         fi
       elif [ "$STATUS" = "clone_client" ]; then
         echo "Restoring $tgt_dev from $SOURCE_IP:$NC_PORT..." | tee --append $OCS_LOGFILE
         part_fs="$(grep -Ew "/dev/$tgt_dev" $tgt_pt_info | awk -F" " '{print $2}')"
         if [ -z "$part_fs" ]; then
            [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
            echo "No file system was found in /dev/$tgt_dev!" | tee --append $OCS_LOGFILE
            echo "Skip receiving data for $tgt_dev..." | tee --append $OCS_LOGFILE
            [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         else
	    receive_partition_or_lv_in_client $part_fs $tgt_dev
         fi
       fi
       example_target="sda1, sda2 or..."
       ;;
    disk)
       if [ "$STATUS" = "clone_server" ]; then
        # $src_pt_info:
        # "/dev/$part $filesystem $pt_size" 
        exec 5< $src_pt_info
        while read -u 5 ipart part_fs size; do
          spart="${ipart#/dev/*}"
          if [ -z "$part_fs" ]; then
             [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
             echo "No file system was found in /dev/$spart!" | tee --append $OCS_LOGFILE
             echo "Skip feeding partition /dev/$spart" | tee --append $OCS_LOGFILE
             [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
          elif [ -n "$(echo $part_fs | grep -Ei "(swap|extended)")" ]; then
             echo "Skip feeding partition $spart since it is $part_fs..." | tee --append $OCS_LOGFILE
          else
             feed_partition_or_lv_in_server $part_fs $spart
          fi
        done
        exec 5<&-
       elif [ "$STATUS" = "clone_client" ]; then
        # $tgt_pt_info:
        # "/dev/$part $filesystem $pt_size" 
        exec 6< $tgt_pt_info
        while read -u 6 ipart part_fs size; do
          t_part="${ipart#/dev/*}"
          if [ -z "$part_fs" ]; then
             [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
             echo "No file system was found in /dev/$t_part!" | tee --append $OCS_LOGFILE
             echo "Skip receiving data for /dev/$t_part" | tee --append $OCS_LOGFILE
           [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
          elif [ -n "$(echo $part_fs | grep -Ei "(swap|extended)")" ]; then
             echo "Skip feeding partition /dev/$t_part since it is $part_fs..." | tee --append $OCS_LOGFILE
          else
             receive_partition_or_lv_in_client $part_fs $t_part
          fi
        done
        exec 6<&-
       fi
       example_target="sda, sdb or..."
       ;;
  esac
  echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE
  [ -n "$filter" ] && filter_opt="-i $filter"
  if [ "$STATUS" = "clone_server" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "$msg_now_run_this_cmd_in_target_machine:"
    echo "sudo su -"
    echo "ocs-live-netcfg ($msg_setup_network_first)"
    echo "$ocs $filter_opt -s $my_ips -t [TARGET_DEV]"
    echo "TARGET_DEV example: $example_target"
    case "$source_type" in
    partition)
      echo "$msg_if_clone_the_partition_to_hda1_in_target_machine:" | tee --append $OCS_LOGFILE
      echo "$ocs $filter_opt -s $my_ips -t sda1" | tee --append $OCS_LOGFILE
      ;;
    disk)
      echo "$msg_if_clone_the_disk_to_hda_in_target_machine:" | tee --append $OCS_LOGFILE
      echo "$ocs $filter_opt -s $my_ips -t sda" | tee --append $OCS_LOGFILE
      ;;
    esac
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  fi
} # end of clone_over_net
#
post_process_in_target_dev() {
  local tgt_disk_select_opt target_parts
  local resize_ntfsfix_opt
  # create swap partition, resize partition, clean the temp partition table, and re-install grub
  if [ "$mode" = "local" -o "$STATUS" = "clone_client" ]; then
    echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE
    # Find the target_parts for later use in resize and partclone.ntfsfixboot
    if [ "$resize_partition" = "on" -o "$change_ntfs_boot_chs" = "on" ]; then
      case "$source_type" in
        partition) target_parts="$tgt_dev" ;;
        disk) 
          #target_parts="$(get_known_partition_sf_format $pt_tmp)" ;;
          BACKUP_DEVS=""
          echo "Searching for data partition(s) in target disk for post process: $target_hd..." | tee --append $OCS_LOGFILE
          get_known_partition_proc_format $target_hd data
          target_parts="$BACKUP_DEVS"
          ;;
      esac
    fi
    echo $msg_delimiter_star_line
    if [ "$resize_partition" = "on" ]; then
     resize_ntfsfix_opt=""
     if [ "$chk_tgt_disk_size_bf_mk_pt" = "no" ]; then
       # Force to run ntfsfix before running ntfsresize. This is specially for when forcing to restore an image from larger partition to smaller one. Then the NTFS partition has to be fixed by ntfsfix first before resizing.
       resize_ntfsfix_opt="--ntfsfix"
     fi
     for partition in $target_parts; do
       echo "Now tuning the file system size on partition /dev/$partition to fit the partition size..." | tee --append $OCS_LOGFILE
       ocs-resize-part $resize_ntfsfix_opt --batch /dev/$partition | tee --append $OCS_LOGFILE
       echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
     done
    fi

    # Only when the target_type is disk we will create swap partition, other we might make a mistake to format the existing partition as swap partition.
    if [ "$target_type" = "disk" ]; then
      echo "Creating the swap partition if exists..." | tee --append $OCS_LOGFILE
      # swap partition
      # Here we use get_swap_partition_parted_format instead of get_swap_partition_sf_format since the former can deal with both MBR and GPT format.
      for partition in `get_swap_partition_parted_format $tgt_parted_info`; do
        echo "Found the swap partition /dev/$partition, create it by:" | tee --append $OCS_LOGFILE
        # read LABEL, UUID info for $partition if swappt-$partition.info exists
        uuid_opt=""
        label_opt=""
        if [ -e "$hd_tgt_tmp/swappt-$partition.info" ]; then
          UUID=""
          LABEL=""
          . "$hd_tgt_tmp/swappt-$partition.info"
          [ -n "$UUID" ] && uuid_opt="-U $UUID"
          [ -n "$LABEL" ] && label_opt="-L $LABEL"
        fi
        echo "mkswap $label_opt $uuid_opt /dev/$partition" | tee --append $OCS_LOGFILE
        mkswap $label_opt $uuid_opt /dev/$partition | tee --append $OCS_LOGFILE
      done
    fi
    echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE
    # clean the tmp file
    [ -f "$tgt_pt_tmp" ] && rm -f $tgt_pt_tmp

    # Remove the udev MAC address records on the restored GNU/Linux
    if [ "$do_rm_hardware_record" = "yes" ]; then
      ocs-tux-postprocess $target_parts | tee --append $OCS_LOGFILE
      echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
    fi

    # re-install syslinux
    if [ "$do_update_syslinux" = "yes" ]; then
      ocs-update-syslinux -b $target_parts | tee --append $OCS_LOGFILE
      echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
    fi

    # re-install grub here
    if [ "$install_grub" = "on" ]; then
      # Since it's local clone, we must assign the target hardisk, otherwise it might find the source hardisk. For example, hda -> hdc local clone, if no "-s $target_hd" is assigned, it will find hda as grub target.
      tgt_disk_select_opt="-s $target_hd"
      echo "Running: ocs-install-grub $tgt_disk_select_opt $grub_partition" | tee --append $OCS_LOGFILE
      ocs-install-grub $tgt_disk_select_opt $grub_partition | tee --append $OCS_LOGFILE
    fi
    echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE

    #
    if [ "$change_ntfs_boot_chs" = "on" ]; then
      echo "Try to run partclone.ntfsfixboot for NTFS boot partition if it exists. Scanning partition(s): $target_parts..." | tee --append $OCS_LOGFILE
      run_ntfsreloc_part -p "$target_parts" $ntfs_boot_partition | tee --append $OCS_LOGFILE
    fi
    echo "$msg_delimiter_star_line" | tee --append $OCS_LOGFILE

    # We will only update EFI NVRAM when the mode is local disk to remote disk, since if it's local cloning, there is no need to update EFI NVRAM.
    if [ "$STATUS" = "clone_client" -a "$target_type" = "disk" ]; then
      # Updating EFI NVRAM for the boot device
      if [ "$update_efi_nvram" = "yes" ]; then
        for ihd in $target_hd; do
          if `is_gpt_partitition_table_disk /dev/$ihd`; then
            update-efi-nvram-boot-entry -r $tgt_efi_nvram_data /dev/$ihd | tee --append $OCS_LOGFILE
          fi
        done
      fi
    fi
  fi
} # end of post_process_in_target_dev
#
set_filter_program() {
case "$filter" in
  bzip|bzip2)
       if [ "$parallel_bzip2_prog" = "pbzip2" ] && type pbzip2 &>/dev/null; then
         filter_comp="pbzip2 -c $extra_pbzip2_opt"
         filter_decomp="pbzip2 -cd"
       elif [ "$parallel_bzip2_prog" = "lbzip2" ] && type lbzip2 &>/dev/null; then
         filter_comp="lbzip2 -c $extra_lbzip2_opt"
         filter_decomp="lbzip2 -cd"
       elif type bzip2 &>/dev/null; then
         filter_comp="bzip2 -c $extra_bzip2_opt"
         filter_decomp="bzip2 -cd"
       else
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "bzip2 was NOT found." | tee --append $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
	 exit 1
       fi
       ;;
   lzop)
       if type lzop &>/dev/null; then
         filter_comp="lzop -c $extra_lzop_opt"
         filter_decomp="lzop -cd"
       else
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "lzop is NOT found." | tee --append $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
	 exit 1
       fi
       ;;
   xz)
       if type pixz &>/dev/null; then
         filter_comp="pixz $extra_pixz_opt"
         filter_decomp="pixz -d"
       elif type xz &>/dev/null; then
         filter_comp="xz -c $extra_xz_opt"
         filter_decomp="xz -cd"
       else
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "xz is NOT found." | tee --append $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
	 exit 1
       fi
       ;;
   cat)
       filter_comp="cat"
       filter_decomp="cat"
       ;;
   *)
       if type pigz &>/dev/null; then
         filter_comp="pigz -c $extra_pigz_opt"
         filter_decomp="pigz -cd"
       elif type gzip &>/dev/null; then
         filter_comp="gzip -c $extra_gzip_opt"
         filter_decomp="gzip -cd"
       else
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "gzip is NOT found." | tee --append $OCS_LOGFILE
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
	 exit 1
       fi
       ;;
esac
} # end of set_filter_program
#
pre_checking() {
# Check if it runs in DRBL server and it's not DRBL/Clonezilla live. If true, warn user!
# Get the live media mount point.
get_live_media_mnt_point

if [ -d "$pxecfg_pd" -a ! -d "/$LIVE_MEDIA" ]; then
  [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
  echo "$msg_Warning!!! $msg_should_not_run_ocs_onthefly_in_server"
  echo "$msg_are_u_sure_u_want_to_continue ?"
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  echo "[y/N]"
  read clone_ans
  case "$clone_ans" in
	  [y|Y][eE][sS])
          [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
	  echo "$msg_really_dangerous_then_continue"
          [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
	  echo -n "$msg_press_enter_to_continue"
	  read
	  ;;
	  *)
	  exit 0
	  ;;
  esac
fi

# check grub_partition if we want to install grub
if [ "$install_grub" = "on" ]; then
  if [ -z "`echo $grub_partition | grep "/dev/[sh]d[a-z][1-9]*"`" -a "$grub_partition" != "auto" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "\"$grub_partition\" $msg_is_not_valid_grub_root." | tee --append $OCS_LOGFILE
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
    exit 1
  fi
fi

#
if [ "$mode" = "local" ]; then
  # check if source and target are the same one if it's local clone!!!
  # we do not accept hda -> hda or hda2 -> hda2, however, hda2 -> hda3 is ok.
  if [ "$tgt_dev" = "$src_dev" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "$msg_src_target_r_same_dev ($src_dev -> $tgt_dev)" | tee --append $OCS_LOGFILE
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
    exit 1
  fi
fi
} # end of pre_checking

#
USAGE() {
    echo "Usage:"
    echo "To run clonezilla on-the-fly:"
    echo "$ocs [OPTION]"
    echo "Option"
    echo "-b, -batch, --batch, --batch-mode   (DANGEROUS!) Run program in batch mode, i.e. without any prompt or wait for pressing enter key. //NOTE// You have to use '-batch' instead of '-b' when you want to use it in the boot parameters. Otherwise the program init on system will honor '-b', too."
    echo "-cmf, --chk-chksum-for-files-in-dev    Do the files checksum inspection for cloned files in destination devices."
    echo "-e1, --change-geometry NTFS-BOOT-PARTITION  Force to change the CHS (cylinders, heads, sectors) value of NTFS boot partitoin after image is restored. NTFS-BOOT-PARTITION can be one of \"/dev/sda1\", \"/dev/sda2\"... or \"auto\" (\"auto\" will let clonezilla detect the NTFS boot partition automatically)"
    echo "-e2, --load-geometry-from-edd  Force to use the CHS (cylinders, heads, sectors) from EDD (Enhanced Disk Device) when creating partition table by sfdisk"
    echo "-r, --resize-partition   Resize the file system size to fit the partition size in the destination disk. It is normally used when when a small partition image is restored to a larger partition."
    echo "-f, --source DEV         Specify the source device as DEV (sda, sda1...)"
    echo "-g, --grub-install GRUB_PARTITION     Install grub in the MBR of the disk containing partition GRUB_PARTITION with root grub directory in the same GRUB_PARTITION when restoration finishs, GRUB_PARTITION can be one of \"/dev/sda1\", \"/dev/sda2\"... or \"auto\" (\"auto\" will let clonezilla detect the grub root partition automatically). If \"auto\" is assigned, it will work if grub partition and root partition are not in the same partition."
    echo "-i, --filter PROGRAM     Use the PROGRAM (gzip/lzop/bzip2/xz/cat) before sending partition data to netcat (only in network clone mode). The default action is gzip. Use \"cat\" if you do not want to compress (Good for fast internode network)."
    echo "-nogui, --nogui          Do not show GUI (TUI) of Partclone or Partimage, use text only"
    echo "-rescue, --rescue        Turn on rescue mode, i.e. try to skip bad sectors."
    echo "-irhr, --irhr            Skip removing the Linux udev hardware records on the restored GNU/Linux."
    echo "-ius, --ius              Skip updating syslinux-related files on the restored GNU/Linux."
    echo "-icds, --ignore-chk-dsk-size-pt  Skip checking destination disk size before creating the partition table on it. By default it will be checked and if the size is smaller than the source disk, quit."
    echo "-iefi, --ignore-update-efi-nvram  Skip updating boot entries in EFI NVRAm after cloning."
    echo "-k, --no-sfdisk          Do NOT create partition table in boot sector in target machine"
    echo "-k1,                     Create partition table in the target disk proportionally."
    echo "-k2,                     Enter command line prompt to create partition table manually before restoring image."
    echo "-j2, --clone-hidden-data  Use dd to clone the image of the data between MBR (1st sector, i.e. 512 bytes) and 1st partition, which might be useful for some recovery tool."
    echo "-m, --no-boot-loader-clone  Do NOT clone boot loader"
    echo "-o, --load-geometry      Force to use the saved CHS (cylinders, heads, sectors) when using sfdisk in restoring."
    echo "-q1, --force-to-use-dd   Force to use sector-by-sector copy (supports all filesystem, but inefficient). By default we will use partclone to clone a partition."
    echo "-p, --port PORT          Specify the netcat port (Only in network clone mode)"
    echo "-pa, --postaction [choose|poweroff|reboot|command|CMD]  When cloning job finishs, the action to be run, e.g. poweroff, reboot, enter command line prompt or run CMD you assign"
    echo "-a, --server             Specify the running machine is in network clone server."
    echo "-s, --source-IP IP       Specify the source IP address (used in target client machine)."
    echo "-t, --target DEV         Specify the target device as DEV (sda, sda1...)"
    echo "-v, --verbose            Prints verbose information"
    echo "-x, --interactive        Interactive mode."
    echo "Ex:"
    echo "1. To clone local sda to local sdb, run"
    echo "   $ocs -f sda -t sdb"
    echo "2. To clone sda (in machine A with IP 192.168.100.1) to sda (in machine B) via network,"
    echo "   In machine A, boot it into DRBL client mode, then run"
    echo "   $ocs -a -f sda"
    echo "   Then in machine B, boot it into DRBL client mode, too. Then run"
    echo "   $ocs --source-IP 192.168.100.1 -t sda"
    echo
}
#
ask_disk_to_local_disk() {
   local available_harddisk_no ANS_TMP
   # src_dev, tgt_dev is like hda, sda...
   available_harddisk_no="$(LC_ALL=C get_harddisk_list | wc -w)"
   if [ "$available_harddisk_no" -lt 2 ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "To do local disk to disk clone, there must be at least 2 harddisks in the machine! Only $available_harddisk_no disk is found!" | tee --append $OCS_LOGFILE
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
      echo -n "$msg_press_enter_to_continue"
      read
      exit 1
   fi
   ANS_TMP=`mktemp /tmp/ocs_ans.XXXXXX`
   trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT
   get_input_dev_name $ANS_TMP harddisk menu yes "$msg_local_source_disk \n$msg_linux_disk_naming"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   src_dev="$(cat $ANS_TMP | tr -d \")"
   [ -z "$src_dev" ] && exit 1
   check_input_hd $src_dev

   get_input_dev_name $ANS_TMP harddisk menu yes "$msg_local_target_disk \n$msg_linux_disk_naming" "$src_dev"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   tgt_dev="$(cat $ANS_TMP | tr -d \")"
   [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
   [ -z "$tgt_dev" ] && exit 1
   check_input_hd $tgt_dev
} # end of ask_disk_to_local_disk
#
ask_disk_to_remote_disk() {
   local ANS_TMP
   # tgt_dev is like hda, sda...
   ANS_TMP=`mktemp /tmp/ocs_ans.XXXXXX`
   trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT
   get_input_dev_name $ANS_TMP harddisk menu yes "$msg_local_source_disk \n$msg_linux_disk_naming"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   src_dev="$(cat $ANS_TMP | tr -d \")"
   [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
   [ -z "$src_dev" ] && exit 1
   check_input_hd $src_dev
}
ask_part_to_local_part() {
   local available_partition_no ANS_TMP
   # src_dev, tgt_dev is like hda1, sda1...
   get_partition_list
   # The partition_list is got from get_partition_list.
   available_partition_no="$(echo $partition_list | wc -w)"
   if [ "$available_partition_no" -lt 2 ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "To do local disk to disk clone, there must be at least 2 partitions in the machine! Only $available_partition_no disk is found!" | tee --append $OCS_LOGFILE
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
      echo -n "$msg_press_enter_to_continue"
      read
      exit 1
   fi
   ANS_TMP=`mktemp /tmp/ocs_ans.XXXXXX`
   trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT

   get_input_dev_name $ANS_TMP partition menu yes "$msg_local_source_part \n$msg_linux_parts_MS_mapping"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   src_dev="$(cat $ANS_TMP | tr -d \")"
   [ -z "$src_dev" ] && exit 1
   check_input_partition $src_dev

   get_input_dev_name $ANS_TMP partition menu yes "$msg_local_target_part \n$msg_linux_parts_MS_mapping" "$src_dev"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   tgt_dev="$(cat $ANS_TMP | tr -d \")"
   [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
   [ -z "$tgt_dev" ] && exit 1
   check_input_partition $tgt_dev
} # end of ask_part_to_local_part
ask_part_to_remote_part() {
   local ANS_TMP
   # src_dev is like hda1, sda1...
   ANS_TMP=`mktemp /tmp/ocs_ans.XXXXXX`
   trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT
   get_input_dev_name $ANS_TMP partition menu yes "$msg_local_source_part \n$msg_linux_parts_MS_mapping"
   # we have to remove " (comes with checklist in dialog) so that for loop
   # will work (Specially for FC3/4...)
   src_dev="$(cat $ANS_TMP | tr -d \")"
   [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
   [ -z "$src_dev" ] && exit 1
   check_input_partition $src_dev
} # end of ask_part_to_remote_part

#
get_onthefly_input_param() {
  local TMP ASK_OCS_ONTHEFLY_TYPE ocs_otf_type
  # (1) disk to local disk
  # (2) disk to remote disk
  # (3) partiiton to local partition
  # (4) partiiton to remote partition

  if  [ "$show_local_menu_in_ocs_onthefly" = "yes" ]; then
    # Only menus for local cloning
    disk_to_local_disk_dia_des
    part_to_local_part_dia_des
  elif  [ "$show_remote_menu_in_ocs_onthefly" = "yes" ]; then
    # Only menus for remote cloning
    disk_to_remote_disk_dia_des
    part_to_remote_part_dia_des
  else
    # Show all menus
    disk_to_local_disk_dia_des
    part_to_local_part_dia_des
    disk_to_remote_disk_dia_des
    part_to_remote_part_dia_des
  fi
  TMP="$(mktemp /tmp/ontheflymenu.XXXXXX)"
  ASK_OCS_ONTHEFLY_TYPE=1
  while [ "$ASK_OCS_ONTHEFLY_TYPE" -ne 0 ]; do
    $DIA --backtitle "$msg_nchc_free_software_labs" --title  \
    "$msg_nchc_clonezilla" --menu "$msg_clonezilla_is_free_and_no_warranty\n$msg_overwrite_data_on_disk_when_cloning\n$msg_choose_mode_ocs_onthefly" \
    0 0 0 \
    $disk_to_local_disk_msg_1 $disk_to_local_disk_msg_2 \
    $disk_to_remote_disk_msg_1 $disk_to_remote_disk_msg_2 \
    $part_to_local_part_msg_1 $part_to_local_part_msg_2 \
    $part_to_remote_part_msg_1 $part_to_remote_part_msg_2 \
    "exit"           "$msg_exit. $msg_enter_cml" \
    2> $TMP
    ocs_otf_type="$(cat $TMP)"
    if [ -z "$ocs_otf_type" ]; then
      ASK_OCS_ONTHEFLY_TYPE=1
    else
      ASK_OCS_ONTHEFLY_TYPE=0
    fi
  done
  [ -f "$TMP" ] && rm -f $TMP
  [ -z "$ocs_otf_type" ] && echo "You must specify the action! Program terminated!!!" && exit 1
  # ocs_mode_prompt is to be shown in the title of dialog menu later
  ocs_mode_prompt="$ocs_otf_type"
  case "$ocs_otf_type" in
    disk_to_local_disk)	ask_disk_to_local_disk;;
    disk_to_remote_disk) 
                        STATUS="clone_server"
                        network_config_if_necessary
                        ask_disk_to_remote_disk;;
    part_to_local_part) ask_part_to_local_part;;
    part_to_remote_part) 
                        STATUS="clone_server"
                        network_config_if_necessary
                        ask_part_to_remote_part;;
    exit) exit 0;;
  esac
} # end of get_onthefly_input_param
set_ocs_onthefly_extra_param() {
  local mode_="$1"  # mode_ is one of: disk_to_local_disk, disk_to_remote_disk, part_to_local_part, part_to_remote_part
  local fdisk_opt
  local inst_grub_opt
  # This function is used to be called inside ocs-onthefly, not from other program.
  local OCS_PARAM_TMP="$(mktemp /tmp/onthefly-extramenu.XXXXXX)"

  # If the mode is only for parts, we won't turn on "-g auto" option by default
  case "$mode_" in
    *part) inst_grub_opt="off";;
        *) inst_grub_opt="on";;
  esac

  if [ "$ocs_user_mode" = "expert" ]; then
    $DIA --separate-output --backtitle "$msg_nchc_free_software_labs" --title  \
    "$msg_ocs_onthefly_advanced_extra_param | $msg_mode: $ocs_mode_prompt" --checklist "$msg_choose_param_to_set:" \
    0 0 0 $DIA_ESC \
    "-g auto "  "$msg_ocs_onthefly_param_g" $inst_grub_opt \
    "-e1 auto " "$msg_ocs_onthefly_param_e1" on \
    "-e2 "      "$msg_ocs_onthefly_param_e2" on \
    "-j2 "      "$msg_ocs_onthefly_param_j2" on \
    "-r "       "$msg_ocs_onthefly_param_e" on \
    "-nogui "   "$msg_ocs_onthefly_param_nogui" off \
    "-q1 "      "$msg_ocs_onthefly_param_q1" off \
    "-m "       "$msg_ocs_onthefly_param_m" off \
    "-rescue "  "$msg_ocs_onthefly_param_rescue" off \
    "-irhr "    "$msg_ocs_onthefly_param_irhr" off \
    "-ius "     "$msg_ocs_onthefly_param_ius" off \
    "-icds "    "$msg_ocs_onthefly_param_icds" off \
    "-iefi "    "$msg_ocs_onthefly_param_iefi" off \
    "-o "       "$msg_ocs_onthefly_param_o" off \
    "-batch "   "$msg_ocs_onthefly_param_b" off \
    "-cmf "     "$msg_ocs_onthefly_param_cmf" off \
    "-v "       "$msg_ocs_onthefly_param_v" off \
    2> $OCS_PARAM_TMP
  else
    if [ "$inst_grub_opt" = "on" ]; then
      echo "-g auto" "-e1 auto" "-e2" "-r" "-j2" > $OCS_PARAM_TMP
    else
      echo "-e1 auto" "-e2" "-r" "-j2" > $OCS_PARAM_TMP
    fi
  fi

  # Question about fsck the source partition. By default, no matter it's beginner or advanced mode, we will ask.
  if [ -z "$fsck_src_part_intr" -a -z "$fsck_src_part_auto" ]; then
    $DIA --separate-output --backtitle "$msg_nchc_free_software_labs" --title  \
    "$msg_ocs_onthefly_advanced_extra_param | $msg_mode: $ocs_mode_prompt" --menu "$msg_choose_param_to_set:" \
    0 0 0 $DIA_ESC \
    "-sfsck "  "$msg_skip_check_source_fs" \
    "-fsck "   "$msg_ocs_onthefly_param_fsck_src_part" \
    "-fsck-y " "$msg_ocs_onthefly_param_fsck_src_part_yes" \
    2>> $OCS_PARAM_TMP
  else
    case "$fsck_src_part_intr" in
      yes) echo "-fsck " >> $OCS_PARAM_TMP;;
        *) echo " " >> $OCS_PARAM_TMP;;
    esac
    case "$fsck_src_part_auto" in
      yes) echo "-fsck-y " >> $OCS_PARAM_TMP;;
        *) echo " " >> $OCS_PARAM_TMP;;
    esac
  fi

  # force to strip the unnecessary quotation ', this is specially for dialog (from cdialog) in Mandriva. Otherwise it will cause -p reboot become (containing space) '-p reboot', which is wrong option in dcs.
  LC_ALL=C perl -pi -e "s/\'//g" $OCS_PARAM_TMP

  # About partition table
  case "$source_type" in
    partition) 
    # Partition restore only. default NOT to create partition table
    if [ "$ocs_user_mode" = "expert" ]; then
      $DIA --backtitle "$msg_nchc_free_software_labs" --title  \
      "$msg_ocs_onthefly_advanced_extra_param | $msg_mode: $ocs_mode_prompt" --menu "$msg_choose_param_to_set_single_choice $msg_hint_for_fdisk:" \
      0 0 0 $DIA_ESC \
      "-k "      "$msg_ocs_onthefly_param_n"  \
      "-k1 "     "$msg_ocs_param_k1"  \
      "-k2 "     "$msg_ocs_param_k2"  \
      " "        "$msg_use_the_part_table_from_sourcedisk"  \
      "exit "    "$msg_exit" \
      2>> $OCS_PARAM_TMP
    else
      echo "-k " >> $OCS_PARAM_TMP
    fi
    ;;
    *)
    # Disk restore, default to create partition table
    if [ "$ocs_user_mode" = "expert" ]; then
      $DIA --backtitle "$msg_nchc_free_software_labs" --title  \
      "$msg_clonezilla_advanced_extra_param | $msg_mode: $ocs_mode_prompt" --menu "$msg_choose_param_to_set_single_choice $msg_hint_for_fdisk:" \
      0 0 0 $DIA_ESC \
      " "        "$msg_use_the_part_table_from_sourcedisk"  \
      "-k "      "$msg_ocs_onthefly_param_n"  \
      "-k1 "     "$msg_ocs_param_k1"  \
      "-k2 "     "$msg_ocs_param_k2"  \
      "exit "    "$msg_exit" \
      2>> $OCS_PARAM_TMP
    else
      echo " " >> $OCS_PARAM_TMP
    fi
    ;;
  esac
  if grep -Ew "exit" $OCS_PARAM_TMP &>/dev/null; then
    echo "$msg_program_stop" | tee --append ${OCS_LOGFILE}
    exit 1
  fi
  if LC_ALL=C grep -Ew -- "(-k1|-k2)" $OCS_PARAM_TMP &>/dev/null; then
    # Option -k1 or -k2 is for different partition size, turn on -r and -icds by default
    if [ -z "$(LC_ALL=C grep -Ew -- "-r" $OCS_PARAM_TMP)" ]; then
      echo "Since the mode you choose might resize partition size, we turn on file system resize funtion automatically (-r)..."
      echo " -r " >> $OCS_PARAM_TMP
    fi
    if [ -z "$(LC_ALL=C grep -Ew -- "-icds" $OCS_PARAM_TMP)" ]; then
      echo "Since the mode you choose might resize partition size, we now enable option \"-icds\" to ignore the partition size checking in Partclone..."
      echo "-icds ">> $OCS_PARAM_TMP
    fi
  fi
  # For both beginner and expert modes, if user has specified postaction, then we do not have to set it. Otherwise, ask it.
  if [ -n "$postaction" ]; then
    echo "-pa $postaction " >> $OCS_PARAM_TMP
  else
    ocs_onthefly_param_postaction_after_clone $OCS_PARAM_TMP
  fi
  # parse them
  ocs_onthefly_adv_param="$(cat $OCS_PARAM_TMP)"
  ocs_onthefly_adv_param="$(echo $ocs_onthefly_adv_param)"  # make it one line
  parse_ocs_onthefly_cmd_options $ocs_onthefly_adv_param
  [ -f "$OCS_PARAM_TMP" ] && rm -f $OCS_PARAM_TMP
} # end of set_ocs_onthefly_extra_param
#
check_source_and_target_type() {
# check source and target type
  if [ -n "$src_dev" ]; then
    check_input_param $src_dev
    ret=$?
    case "$ret" in
       3)
    	source_type="disk"
    	;;
       5)
    	source_type="partition"
    	;;
    esac
  fi
  if [ -n "$tgt_dev" ]; then
    check_input_param $tgt_dev
    ret=$?
    case "$ret" in
       3)
    	target_type="disk"
    	;;
       5)
    	target_type="partition"
    	;;
    esac
  fi
} # check_source_and_target_type
#
parse_ocs_onthefly_cmd_options() {
# Parse command-line options
  while [ $# -gt 0 ]; do
    case "$1" in
      -b|-batch|--batch|--batch-mode) shift; batch_mode="on" ;;
      -e1|--change-geometry)  
              change_ntfs_boot_chs="on"
              shift
              # skip the -xx option, in case 
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                ntfs_boot_partition=$1
                shift
              fi
              [ -z "$ntfs_boot_partition" ] && USAGE && exit 1
              ;;
      -e2|--load-geometry-from-edd)
  	    shift; use_HD_CHS_from_EDD_pref="yes" ;;
      -l|--language)
  	    shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
  	      specified_lang="$1"
  	      shift
              fi
              [ -z "$specified_lang" ] && USAGE && exit 1
  	    ;;
      -g|--grub-install)  
              install_grub="on"
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                grub_partition=$1
                shift
              fi
              [ -z "$grub_partition" ] && USAGE && exit 1
              ;;
      -n)     shift; create_part="no"
  	      echo "Option -n is deprecated! Please use -k in the future!"
  	      ;;
      -k|--no-sfdisk) shift; create_part="no" ;;
      -k1|--fdisk-proportion)  
              shift
              create_part="yes"
              create_part_type="proportion"
              ;;
      -k2|--fdisk-manual)  
              shift
              create_part="yes"
              create_part_type="manual"
              ;;
      -m|--no-boot-loader-clone) shift; CLONE_BOOT_LOADER="no" ;;
      -s|--source-IP)
              shift
  	      STATUS="clone_client"
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                SOURCE_IP=$1
                shift
              fi
              [ -z "$SOURCE_IP" ] && USAGE && exit 1
              ;;
      -f|--source)
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                src_dev=$1
                shift
              fi
              [ -z "$src_dev" ] && USAGE && exit 1
              ;;
      -t|--target)
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                tgt_dev=$1
                shift
              fi
              [ -z "$tgt_dev" ] && USAGE && exit 1
              ;;
      -p|--port)
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                NC_PORT=$1
                shift
              fi
              [ -z "$NC_PORT" ] && USAGE && exit 1
              ;;
      -pa|--postaction)  
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
                postaction="$1"
                shift
              fi
              [ -z "$postaction" ] && USAGE && exit 1
              ;;
      -q1|--force-to-use-dd) FORCE_TO_USE_DD="yes"; shift ;;
      -i|--filter)
              shift
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                # skip the -xx option, in case 
  	        filter=$1
                shift
              fi
  	    [ -z "$filter" ] && USAGE && exit 1
  	    ;;
      -um|--user-mode)
              shift
              # skip the -xx option, in case 
              if [ -z "$(echo $1 |grep ^-.)" ]; then
                ocs_user_mode="$1"
                shift
              fi
              [ -z "$ocs_user_mode" ] && USAGE && exit 1
  	    ;;
      -a|--server) shift; STATUS="clone_server" ;;
      -r|--resize-partition) shift; resize_partition="on";;
      -o|--load-geometry) shift; load_HD_CHS_from_img="yes";;
      -nogui|--nogui) shift; nogui="on";;
      -x|--interactive) shift; ocs_onthefly_mode="interactive";; 
      -j2|--clone-hidden-data) shift; clone_hidden_data="yes";;
      -rescue|--rescue) shift; rescue_mode="on";;
      -irhr|--irhr) shift; do_rm_hardware_record="no";;
      -ius|--ius) shift; do_update_syslinux="no";;
      -icds|--ignore-chk-dsk-size-pt) shift; chk_tgt_disk_size_bf_mk_pt="no";;
      -iefi|--ignore-update-efi-nvram) shift; update_efi_nvramt="no";;
      -sfsck|--skip-fsck-src-part) shift; 
                                   fsck_src_part_intr="no"
                                   fsck_src_part_auto="no";;
      -fsck-src-part|--fsck-src-part|-fsck) shift; fsck_src_part_intr="yes";;
      -fsck-src-part-y|--fsck-src-part-y|-fsck-y) shift; fsck_src_part_auto="yes";;
      -cmf|--chk-chksum-for-files-in-dev) shift; chksum_for_files_in_dev="yes" ;;
      -ro|--remote-clone-only) shift; show_remote_menu_in_ocs_onthefly="yes";;
      -lo|--local-clone-only)  shift; show_local_menu_in_ocs_onthefly="yes";;
      -v|--verbose) shift; verbose="on" ;;
      -*)     echo "${0}: ${1}: invalid option" >&2
              USAGE >& 2
              exit 2 ;;
      *)      break ;;
    esac
  done
} # End of parse_ocs_onthefly_cmd_options
#
clean_tmp_dirs() {
  if [ "$STATUS" = "clone_server" ]; then
    [ -d "$hd_src_tmp" -a -n "$(echo $hd_src_tmp | grep "ocs_onthefly")" ] && rm -rf $hd_src_tmp
  elif [ "$STATUS" = "clone_client" ]; then
    [ -d "$hd_tgt_tmp" -a -n "$(echo $hd_tgt_tmp | grep "ocs_onthefly")" ] && rm -rf $hd_tgt_tmp
  fi
  [ -d "$local_tmp" -a -n "$(echo $local_tmp | grep "ocs_onthefly")" ] && rm -rf $local_tmp
} # end of clean_tmp_dirs
#
do_fsck_in_source_dev_if_assigned() {
  local fsck_extra_opt
  if [ "$mode" = "local" -o "$STATUS" = "clone_server" ]; then
    if [ "$fsck_src_part_auto" = "yes" ]; then
      # It's auto (actually say "yes" to all), so we add "-y" for fsck.
      fsck_extra_opt="-y"
    fi
    if [ "$fsck_src_part_intr" = "yes" -o \
	 "$fsck_src_part_auto" = "yes" ]; then
     case "$source_type" in
      partition)
         part_fs="$(grep -Ew "/dev/$src_dev" $src_pt_info | awk -F" " '{print $2}')"
         if [ -z "$part_fs" ]; then
            [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
  	  echo "No file system was found in /dev/$src_dev! Skip fsck." | tee --append $OCS_LOGFILE
            [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         else
	    fsck_partition $part_fs /dev/$src_dev $fsck_extra_opt
         fi
         ;;
      disk)
         echo $msg_delimiter_star_line
         BACKUP_DEVS=""
         echo "Searching for data partition(s) in source disk: $source_hd ..." | tee --append $OCS_LOGFILE
         get_known_partition_proc_format $source_hd data
         echo $msg_delimiter_star_line | tee --append $OCS_LOGFILE
         target_part_list="$(echo $BACKUP_DEVS | replace_disk_name_stdin $source_hd $target_hd)"
         #for target_part in `get_known_partition_sf_format $pt_tmp`; do
         for target_part in $target_part_list; do
           # we need to know the source partition, so replace it, ex. hdc1 -> hda1
           # Ex: target_part: hdc1, hddev: hdc, part_no: 1, src_part: hda1
           hddev="$(get_diskname $target_part)"
           part_no="$(get_part_number $target_part)"
           src_part="$(echo $target_part | replace_disk_name_stdin $hddev $source_hd)"
           part_fs="$(grep -Ew "/dev/$target_part" $tgt_pt_info | awk -F" " '{print $2}')"
           if [ -z "$part_fs" ]; then
              [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
              echo "No file system was found in /dev/$src_part! Skip fsck." | tee --append $OCS_LOGFILE
              [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
           else
	      fsck_partition $part_fs /dev/$src_part $fsck_extra_opt
           fi
         done
         ;;
     esac
    fi
  fi
} # end of do_fsck_in_source_dev_if_assigned
#
disk_to_local_disk_dia_des() {
  disk_to_local_disk_msg_1="disk_to_local_disk"
  disk_to_local_disk_msg_2="$(rep_whspc_w_udrsc "$msg_disk_to_local_disk")"
} # end of disk_to_local_disk_dia_des
#
disk_to_remote_disk_dia_des() {
  disk_to_remote_disk_msg_1="disk_to_remote_disk"
  disk_to_remote_disk_msg_2="$(rep_whspc_w_udrsc "$msg_disk_to_remote_disk")"
} # end of disk_to_remote_disk_dia_des
#
part_to_local_part_dia_des() {
  part_to_local_part_msg_1="part_to_local_part"
  part_to_local_part_msg_2="$(rep_whspc_w_udrsc "$msg_part_to_local_part")"
} # end of part_to_local_part_dia_des
#
part_to_remote_part_dia_des() {
  part_to_remote_part_msg_1="part_to_remote_part"
  part_to_remote_part_msg_2="$(rep_whspc_w_udrsc "$msg_part_to_remote_part")"
} # end of part_to_remote_part_dia_des
#
prepare_chksum_for_source_part(){
  # source partition is lised in file $src_pt_info, and its format:
  # "/dev/$part $filesystem $pt_size" 
  while read ipart part_fs size; do
    # Skip swap, no way to create checksum for the files inside swap partition.
    [ "$part_fs" = "swap" ] && continue
    echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
    gen_chksum_for_files_in_dev "$ipart" "$hd_src_tmp"
    echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
  done < $src_pt_info
  # Convert to target device for checksum files
  echo "Converting the checksum for destination disk..."
  for im in $hd_src_tmp/*.files-*sum.info.gz; do
    [ ! -e "$im" ] && continue
    imname="$(LC_ALL=C basename $im)"
    # [p]? is for cciss device partitions, e.g. when convering cciss/c0d0 to sda
    # cciss/c0d0p1 -> sda1
    case $tgt_dev in
    cciss*|mmcblk*|md*|rd*|ida*|nvme*)
      newname="$(LC_ALL=C echo $imname | sed -r -e "s/$(to_filename ${src_dev})[p]?/$(to_filename ${tgt_dev})p/g")"
      ;;
    *)
      newname="$(LC_ALL=C echo $imname | sed -r -e "s/$(to_filename ${src_dev})[p]?/$(to_filename ${tgt_dev})/g")"
      ;;
    esac
    if [ -z "$newname" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Name converted failed in $ocs!"
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "Program terminated!"
      exit 1
    fi
    mv -vf $hd_tgt_tmp/$imname $hd_tgt_tmp/$newname
  done
} # end of prepare_chksum_for_source_part
#
save_ocs_onthefly_related_vars() {
  # Function to save ocs-related variables so that some customized program can use.
  # The old one will be overwritten
  echo "ocs_cmd=\"$ocs\"" > /var/lib/clonezilla/ocs-vars
  echo "postaction=\"$postaction\"" >> /var/lib/clonezilla/ocs-vars
  echo "ocs_onthefly_mode=\"$ocs_onthefly_mode\"" >> /var/lib/clonezilla/ocs-vars
} # end of save_ocs_related_var
#
ask_ocs_onthefly_srv_ip() {
  # Ask about ocs-onthefly server
  local TMP="$(mktemp /tmp/ocs-client.XXXXXX)"
  local srv_default ask_ ans_
  trap "[ -f "$TMP" ] && rm -f $TMP" HUP INT QUIT TERM EXIT
  srv_default="$(LC_ALL=C route -n | grep "^0.0.0.0" | awk -F" " '{print $2}')"
  ask_="true"
  while [ "$ask_" = "true" ]; do
    $DIA --backtitle "$msg_nchc_free_software_labs" --title  \
    "Device cloning server" --inputbox "$msg_ip_address_or_FQDN_of_server: Device cloning server" \
    0 0 $srv_default $DIA_ESC \
    2> $TMP
    SOURCE_IP="$(cat $TMP)"
    if [ -z "$SOURCE_IP" ]; then
      $DIA --backtitle "$msg_nchc_free_software_labs" --title "$msg_nchc_clonezilla" \
      --yesno "$msg_you_must_input_a_server\n$msg_do_u_want_to_do_it_again" 0 0
      ans_="$?"
      case "$ans_" in
        0) # yes is chosen
           ask_="true";;
        1) # no is chosen
           echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
           [ -f "$TMP" ] && rm -f $TMP
           exit 1;;
      esac
    else
      # Got the one we want
      ask_="false"
    fi
  done
  [ -f "$TMP" ] && rm -f $TMP
  if [ -z "$SOURCE_IP" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "No device cloning server was assigned or found!" | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
  echo "Device cloning server is: $SOURCE_IP" | tee -a ${OCS_LOGFILE}
} # end of ask_ocs_onthefly_srv_ip
#
ask_ocs_onthefly_dest_dev() {
  local TMP dev_action ANS_TMP
  # Ask restoring type first so that we can choose disk or parts.
  TMP=$(mktemp /tmp/menu.XXXXXX)
  trap "[ -f "$TMP" ] && rm -f $TMP" HUP INT QUIT TERM EXIT
  $DIA \
  --backtitle "$msg_nchc_title" \
  --title "$msg_start_clonezilla_mode" \
  --menu "$msg_clonezilla_is_free_and_no_warranty\n$msg_choose_mode:" 0 0 0 \
  "restoredisk" "$msg_clonezilla_restore_disk" \
  "restoreparts" "$msg_clonezilla_restore_parts" \
  2> $TMP
  dev_action=$(cat $TMP)
  [ -f "$TMP" ] && rm -f $TMP

  # choose the only dev we want
  case "$dev_action" in
   "restoredisk")
      get_target_hd_name_from_local_machine "$msg_local_target_disk \n$msg_linux_disk_naming $msg_press_space_to_mark_selection"
      # check if the device exists
      ANS_TMP=`mktemp /tmp/ocs_chkdev.XXXXXX`
      trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT
      check_if_input_device_exist $ANS_TMP $target_hd 
      tgt_dev="$(cat $ANS_TMP | tr -d \")"
      [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
      ;;
   "restoreparts")
      get_target_parts_name_from_local_machine "$msg_choose_the_parts_to_restore \n$msg_linux_parts_MS_mapping" $dia_sel_opt
      # check if the device exists
      ANS_TMP=`mktemp /tmp/ocs_chkdev.XXXXXX`
      trap "[ -f "$ANS_TMP" ] && rm -f $ANS_TMP" HUP INT QUIT TERM EXIT
      check_if_input_device_exist $ANS_TMP $target_parts
      # we have to remove " (comes with checklist in dialog) so that for loop
      # will work (Specially for FC3/4...)
      tgt_dev="$(cat $ANS_TMP | tr -d \")"
      [ -f "$ANS_TMP" ] && rm -f $ANS_TMP
      ;;
  esac
} # end of ask_ocs_onthefly_dest_dev

########################
##### MAIN PROGRAM #####
########################
# Fedora Core 1 seems to use dumb for rc1, we have to force it use linux.
# otherwise setterm will complain.
[ -z "$TERM" -o "$TERM" = "dumb" ] && TERM="linux"
echo "Setting the TERM as $TERM"
export TERM="$TERM"

#
check_if_root

# PARTIMAGE_RESTORE_OPT & PARTIMAGE_SAVE_OPT will put into partimage command options
PARTIMAGE_RESTORE_OPT=
PARTIMAGE_SAVE_OPT=
STATUS=
ocs_onthefly_mode=""
# Some default setting.
batch_mode="off"
install_grub="off"
grub_partition="auto" 
change_ntfs_boot_chs="off"
ntfs_boot_partition="auto"
use_HD_CHS_from_EDD_pref="no"
create_part="yes" 
CLONE_BOOT_LOADER="yes" 
resize_partition="off" 
load_HD_CHS_from_img="no" 
nogui="off" 
verbose="off" 
clone_hidden_data="no"
sfdisk_opt="--force"
# Default to remove the udev MAC address records on the restored GNU/Linux
do_rm_hardware_record="yes"
# Default to run ocs-update-syslinux to update the syslinux files (ldlinux.sys, *.c32 and *.bin)
do_update_syslinux="yes"
# Flag to check target disk size before creating partition table
chk_tgt_disk_size_bf_mk_pt="yes"
# Flag to update EFI NVRAM after restoring a disk
update_efi_nvram="yes"
# Load PARTCLONE_RESTORE_ONTHEFLY_OPT_INIT from drbl-ocs.conf
PARTCLONE_RESTORE_ONTHEFLY_OPT="$PARTCLONE_RESTORE_ONTHEFLY_OPT_INIT"
#
partclone_log="/var/log/partclone.log"

# Clean the previous saved env so if ocs-onthefly is cancelled, won't read the previous env and reboot/poweroff.
rm -f /var/lib/clonezilla/ocs-vars

# Rotate the log file
ocs_log_rotate $OCS_LOGFILE
ocs_log_rotate $partclone_log

#
echo "Starting $0 at $(LC_ALL=C date +%F' '%T' '%Z)..." | tee --append ${OCS_LOGFILE}

#
parse_ocs_onthefly_cmd_options $*

ask_and_load_lang_set $specified_lang

# check DIA
check_DIA_set_ESC $DIA

# Turn off swap and LVM2, unlock the busy partitions.
turn_off_swap_and_LVM2

#
if [ "$ocs_onthefly_mode" = "interactive" ]; then
  [ -z "$ocs_user_mode" ] && ask_if_beginner_or_expert_mode
  get_onthefly_input_param      # get src_dev, tgt_dev, for example.
  check_source_and_target_type
  set_ocs_onthefly_extra_param $ocs_mode_prompt # get OCS_PARAM_TMP
  [ -n "$tgt_dev" ] && tgt_dev_opt="-t $tgt_dev"
  [ "$STATUS" = "clone_server" ] && net_clone_opt="-a"
  run_again_fname="/tmp/ocs-onthefly-`date +%F-%H-%M`"
  [ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
  echo PS. $msg_run_drbl_ocs_again_cmd | tee --append ${OCS_LOGFILE}
  echo "$0 $ocs_onthefly_adv_param $net_clone_opt -f $src_dev $tgt_dev_opt" >> ${OCS_LOGFILE}
  echo "$0 $ocs_onthefly_adv_param $net_clone_opt -f $src_dev $tgt_dev_opt" | tee $run_again_fname
  echo "$msg_ocs_sr_again_command_saved_filename: $run_again_fname"
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  [ -e "$run_again_fname" ] && chmod 755 $run_again_fname
  echo $msg_delimiter_star_line | tee --append ${OCS_LOGFILE}
  if [ "$batch_mode" != "on" ]; then
    echo -n "$msg_press_enter_to_continue "
    read
  fi
else
  check_source_and_target_type
fi
#
if [ -n "$STATUS" ]; then
  # It's in network clone mode
  if [ "$STATUS" = "clone_server" ]; then
    [ -z "$src_dev" ] && clean_tmp_dirs && USAGE && exit 1
  elif [ "$STATUS" = "clone_client" ]; then
    network_config_if_necessary
    if [ "$SOURCE_IP" = "ask_user" ]; then
      ask_ocs_onthefly_srv_ip
    fi
    if [ "$tgt_dev" = "ask_user" ]; then
      ask_ocs_onthefly_dest_dev
    fi
    [ -z "$tgt_dev" -o -z "$SOURCE_IP" ] && clean_tmp_dirs && USAGE && exit 1
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "Source machine: $SOURCE_IP"
    echo "Destination device on this machine: $tgt_dev"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    if [ "$batch_mode" = "off" ]; then
      echo -n "$msg_press_enter_to_continue..."
      read
    fi
  fi
  #
  echo "$msg_delimiter_star_line"
  mode="network"
  my_ips="$(LC_ALL=C get-all-nic-ip -r)"
  echo "$msg_my_IP_in_drbl_env: $my_ips"
  [ -z "$NC_PORT" ] && NC_PORT=$NC_PORT_DEFAULT
  # The NC port for target machine to notify the server
  JOB_NOTIFY_PORT=$((NC_PORT +1))
  # Get the source port option of nc is "-p" or none.
  nc_lp_check
else
  # It's in local clone mode
  if [ -z "$src_dev" -o -z "$tgt_dev" ]; then 
    clean_tmp_dirs
    USAGE 
    exit 1
  fi
  #
  echo "$msg_delimiter_star_line"
  mode="local"
fi

# Boot parameter ocs_overwrite_postaction has higher priority than the action assigned by option "-pa".
overwrite_postaction_if_assigned clone

#
set_filter_program

pre_checking

case "$mode" in
  local)
    if [ "$source_type" != "$target_type" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "$msg_different_type_of_input_devs ($src_dev to $tgt_dev)! $msg_program_stop!" | tee --append ${OCS_LOGFILE}
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      clean_tmp_dirs
      exit 1
    fi
    ;;
  network)
    # clean the stalled partimage and netcat process
    kill_clone_prog_nc_process
    ;;
esac


# Convert partition to disk (Ex. hda1 -> hda) if it's necessary
if [ -n "$src_dev" ]; then
  source_hd="$(get_diskname $src_dev)"
fi
if [ -n "$tgt_dev" ]; then
  target_hd="$(get_diskname $tgt_dev)"
fi

echo "$msg_delimiter_star_line"
# turn on DMA and turn off swap/LVM.
screen_not_blank
[ -n "$target_hd" ] && turn_on_hd_dma /dev/$target_hd

echo "$msg_delimiter_star_line" | tee --append ${OCS_LOGFILE}
# confirm first
confirm_do_it_in_target_dev

# prepare the partition table and MBR (if necessary)
case "$mode" in
  local)   prepare_local_clone_dev_info ;;
  network) prepare_network_clone_dev_info ;;
esac

#
if [ "$nogui" = "on" ]; then
  PARTIMAGE_RESTORE_ONTHEFLY_OPT="-B gui=no"
fi
if [ "$nogui" = "off" ]; then
  # TUI is on.
  # Use the TUI mode for partclone (i.e. run with -N, otherwise by default partclone runs only text output)
  # //NOTE// Even if -N is set for partclone in save mode, it's useless, since we will stdout to another program to compress.
  PARTCLONE_RESTORE_ONTHEFLY_OPT="$PARTCLONE_RESTORE_ONTHEFLY_OPT -N"
fi

if [ "$rescue_mode" = "on" ]; then
  PARTCLONE_RESTORE_ONTHEFLY_OPT="$PARTCLONE_RESTORE_ONTHEFLY_OPT --rescue"
fi

if [ "$verbose" = "on" ]; then
  echo "PARTIMAGE_RESTORE_OPT: $PARTIMAGE_RESTORE_OPT" | tee --append ${OCS_LOGFILE}
  echo "PARTIMAGE_SAVE_OPT: $PARTIMAGE_SAVE_OPT" | tee --append ${OCS_LOGFILE}
  echo "PARTCLONE_RESTORE_ONTHEFLY_OPT: $PARTCLONE_RESTORE_ONTHEFLY_OPT" | tee --append ${OCS_LOGFILE}
  echo "SOURCE: $src_dev" | tee --append ${OCS_LOGFILE}
  echo "TARGET: $tgt_dev" | tee --append ${OCS_LOGFILE}
  echo "PORT for netcat: $NC_PORT" | tee --append ${OCS_LOGFILE}
fi

# Check if any source partition is busy or not.
# $src_pt_info format:
# "/dev/$part $filesystem $pt_size" 
while read ipart part_fs size; do
  check_if_dev_busy $ipart
done < $src_pt_info

# Run fsck on the source partition
do_fsck_in_source_dev_if_assigned

#
if [ "$chksum_for_files_in_dev" = "yes" ]; then
  prepare_chksum_for_source_part
fi

# partition table
create_partition_table_in_target

# process the boot loader
if `is_mbr_partitition_table_file $src_parted_info`; then
  # MBR disk, ask if clone boot loader
  clone_boot_loader_in_target
fi

#
echo "$msg_delimiter_star_line"
# Start cloning
case "$mode" in
  local) local_dev_clone ;;
  network) clone_over_net ;;
esac

# create swap partition, resize partition, clean the temp partition table, and re-install grub
post_process_in_target_dev

#
save_ocs_onthefly_related_vars

# Restore the udevd rules (if exists) which were disabled by ocs-lvm2-stop.
restore_lvm2_udevd_rules

if [ "$STATUS" = "clone_server" ]; then
  echo "$msg_delimiter_star_line" | tee --append ${OCS_LOGFILE}
  echo -n "Waiting for the target machine to connect... " | tee --append ${OCS_LOGFILE}
  $NC_CMD -l $NC_LOCAL_PORT_OPT $JOB_NOTIFY_PORT | tee --append ${OCS_LOGFILE}
elif [ "$STATUS" = "clone_client" ]; then
  echo "$msg_delimiter_star_line" | tee --append ${OCS_LOGFILE}
  echo -n "Notifying the source machine that my job is done... " | tee --append ${OCS_LOGFILE}
  echo 'done!' | $NC_CMD $NC_QUIT_OPT $SOURCE_IP $JOB_NOTIFY_PORT
  echo 'done!' | tee --append ${OCS_LOGFILE}
fi

echo "Now syncing - flush filesystem buffers..." | tee --append ${OCS_LOGFILE}
sync;sync;sync

if [ "$ocs_onthefly_mode" != "interactive" ]; then
  # Only when not in interactive mode we will run run_post_cmd_when_clone_end here.
  run_post_cmd_when_clone_end "$postaction" | tee --append ${OCS_LOGFILE}
fi

# Clean tmp dir
clean_tmp_dirs

echo "Ending $0 at $(LC_ALL=C date +%F' '%T' '%Z)..." | tee --append ${OCS_LOGFILE}
exit 0