/usr/lib/dpkg/methods/disk/setup is in dselect 1.18.25.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
set -e
vardir="$1"
method=$2
option=$3
cd "$vardir/methods/disk"
tp=/var/run/ddm$$
iarch=`dpkg --admindir $vardir --print-architecture`
xit=1
trap '
rm -f $tp.?
if [ -n "$umount" ]
then
umount "$umount" >/dev/null 2>&1
fi
exit $xit
' 0
if ls -d "$tp.?" >/dev/null 2>&1
then
rm $tp.?
fi
yesno () {
while true
do
echo -n "$2 [$1] "
read response
if [ -z "$response" ]
then
response="$1"
fi
case "$response" in
[Nn]*) yesno=no ; return ;;
[Yy]*) yesno=yes ; return ;;
esac
done
}
print_partition_table()
{
device="$1"
printf "p\nq\n" | fdisk "$device" 2>/dev/null
}
getblockdev () {
mountpoint="$vardir/methods/mnt"
if [ -z "$defaultdevice" ]
then
defaultdevice="$newdefaultdevice"
elif [ "$defaultdevice" != "$newdefaultdevice" ]
then
echo \
"Last time you specified installation from $defaultdevice."
fi
promptstring="$1"
while [ -z "$blockdevice" ]
do
echo -n "$promptstring [$defaultdevice]: "
read response
if [ -z "$response" ]
then
response="$defaultdevice"
fi
if ! [ -b "$response" ]
then
echo "$response is not a block device."; continue
fi
tryblockdevice="$response"
if [ $option = cdrom ]
then
fstype=iso9660
elif [ $option = harddisk ]
then
blockbase="`echo \"$tryblockdevice\" | sed -e 's/[0-9]\{1,\}$//'`"
set +e
print_partition_table "$blockbase" >$tp.f
set -e
proposeddevice="$tryblockdevice" perl -ne '
next unless /^ *Device +Boot +Start +End +Blocks +Id +System *$/i .. !/\S/;
next unless s:^/\S+::p && ${^MATCH} eq $ENV{proposeddevice};
next unless s/^ +(\* +)?\d+ +\d+ +\d+\+? +//;
next unless m/^([0-9a-f]{1,2}) /i;
%types= ( "1","msdos", "4","msdos", "6","msdos", "7","hpfs", "80","minix",
"81","minix", "83","ext2" );
print $types{$1}; exit(0); ' <$tp.f >$tp.m
defaultfstype="`cat $tp.m`"
if [ -n "$defaultfstype" ]
then
cat <<END
The partition table for $blockbase claims that $tryblockdevice
contains filesystem type $defaultfstype.
END
if ! grep " $defaultfstype$" /proc/filesystems >/dev/null
then
echo \
"Your kernel does not appear to support that filesystem type."
defaultfstype=""
fi
fi
echo -n "Supported filesystems: "
sed -e 's/^.* / /' /proc/filesystems | tr '\n' ' '
echo -n "
Enter filesystem type (for $tryblockdevice) [$defaultfstype]: "
read fstype
if [ -z "$fstype" ]
then
fstype="$defaultfstype"
fi
fi
umount="$mountpoint"
if mount -rt "$fstype" -o nosuid,nodev "$tryblockdevice" "$mountpoint"
then
echo
blockdevice="$tryblockdevice"
else
umount=""
echo \
"Unable to mount $tryblockdevice on $mountpoint, type $fstype."
fi
done
}
outputparam () {
echo "$2" | sed -e "s/'/'\\\\''/; s/^/$1='/; s/$/'/" >&3
}
intrkey="`stty -a | sed -n 's/.*intr = \([^;]*\);.*/\1/p'`"
echo "
If you make a mistake, use the interrupt key ($intrkey) to abort.
"
# State variables, “best first”
# {main,ctb,nf,nus,lcl}_{packages,binary}
# Empty before we've found them or if they're not available,
# set to the relevant bit under mountpoint otherwise.
# hierbase
# A directory containing a Debian FTP site mirror tree for ONE distribution.
# eg /pub/debian/dists/stable
# mountpoint
# The mountpoint for the filesystem containing the stuff
# empty or unset if we don't know yet, or if we haven't mounted anything;
# may also be empty if ‘directory’ was set.
# blockdevice
# The actual block device to mount.
# fstype
# The filesystem type to use.
# defaultdevice
# The default block device to mount.
if [ -f shvar.$option ]
then
. ./shvar.$option
defaultdevice="$p_blockdev"
defaultnfsserver="$p_nfsserver"
defaultnfsrempath="$p_nfsrempath"
fi
if [ $option = cdrom ]
then
mount >$tp.m
sed -n 's/ ([^)]*)$//; s/^[^ ]* on //; s/ type iso9660$//p' <$tp.m >$tp.l
ncdroms=`wc -l <$tp.l`
if [ $ncdroms -gt 1 ]
then
response=""
while [ -z "$response" ]
do
echo \
'Several CD-ROMs (or other ISO9660 filesystems) are mounted:'
grep 'type iso9660 ([^)]*)$' <$tp.m | nl
echo -n \
"Is it any of these ? Type a number, or 'n' for none. "
read response
response="`echo \"$response\" | sed -e 's/[ ]*$//'`"
if expr "$response" : '[0-9][0-9]*$' >/dev/null && \
[ $response -ge 1 ] && [ $response -le $ncdroms ]
then
mountpoint="`sed -n $response'p' <$tp.l`"
echo
elif expr "$response" : '[Nn]' >/dev/null
then
mountpoint=""
else
response=""
fi
done
elif [ $ncdroms = 1 ]
then
mountpoint="`cat $tp.l`"
perl -ne 'print if s/ type iso9660 \([^)]*\)$// && s/ on .*$//;' \
<$tp.m >$tp.d
blockdevice="`cat $tp.d`"
yesno yes \
"I see a CD-ROM: $blockdevice, mounted on $mountpoint. Is it the right one ?"
if [ $yesno = no ]
then
echo 'Unmounting it ...'
umount="$mountpoint"
while true
do
echo -n \
'Please insert the right disc, and hit return: '
read response
if mount -rt iso9660 -o nosuid,nodev \
"$blockdevice" "$mountpoint"
then
echo
break
fi
done
fi
fi
if [ -z "$mountpoint" ]
then
if [ -b /dev/cdrom ]
then
echo \
'I see that /dev/cdrom exists and is a block device.'
newdefaultdevice=/dev/cdrom
fi
getblockdev 'Insert the CD-ROM and enter the block device name'
fi
fi
if [ $option = nfs ]
then
mountpoint="$vardir/methods/mnt"
while [ -z "$nfsserver" ]
do
echo -n \
"What is the name of the NFS server ? [$defaultnfsserver] "
read response
if [ -z "$response" ] && [ -n "$defaultnfsserver" ]
then
response="$defaultnfsserver"
fi
if [ -z "$response" ]; then continue; fi
if [ -x "`which rpcinfo`" ]
then
if rpcinfo -u "$response" mountd | grep -q 'ready'
then
nfsserver="$response"
else
echo "$response appears not to be an NFS server."
fi
elif [ -x "`which ping`" ]
then
if ping -q -c 1 "$response" | grep -q ', 1 packets received'
then
nfsserver="$response"
else
echo "$response appears to be down or nonexistent."
fi
else
echo \
"(I can't check that now because there is no rpcinfo or ping.)"
nfsserver="$response"
fi
done
while [ -z "$nfsrempath" ]
do
echo -n "
What is the pathname on the NFS server of the filesystem with
the Debian files? [$defaultnfsrempath] "
read response
if [ -z "$response" ] && [ -n "$defaultnfsrempath" ]
then
response="$defaultnfsrempath"
else
response="`echo \"$response\" | sed -e 's:/$::; s:^/*:/:'`"
fi
umount="$mountpoint"
if mount -rt nfs -o nosuid,nodev "$nfsserver:$response" "$mountpoint"
then
echo
nfsrempath="$response"
else
umount=""
echo \
"Unable to mount NFS filesystem $nfsserver:$response."
fi
done
nfs="$nfsserver:$nfsrempath"
fi
if [ $option = harddisk ]
then
set +e
print_partition_table /dev/hda >$tp.f
if [ $? != 0 ]
then
print_partition_table /dev/sda >$tp.f
fi
set -e
perl -ne '
next unless /^ *Device +Boot +Start +End +Blocks +Id +System *$/i .. !/\S/;
next unless / [146] +DOS \d+-bit \S+$/;
next unless m:^/\S+:p;
print ${^MATCH}; ' <$tp.f >$tp.d
newdefaultdevice="`cat $tp.d`"
echo "
I need to know which disk partition contains the distribution files;
disk partitions are specified by the block device name in Linux."
if [ -n "$newdefaultdevice" ]
then
echo \
"By the way, $newdefaultdevice looks like a DOS partition."
fi
getblockdev "Enter the partition's block device name"
fi
if [ -n "$mountpoint" ]
then
# We must have $mountpoint
if [ $option = cdrom ]
then
echo \
'All directory names should be entered relative to the root of the CD-ROM.
'
elif [ $option = nfs ]
then
echo \
"All directory names should be entered relative to the root of the NFS
filesystem, ie relative to $nfsrempath on the server.
"
else
echo \
"All directory names should be entered relative to the root of the
$fstype filesystem on $blockdevice.
"
fi
fi
while true
do
if [ $option = cdrom ]
then
echo \
"I would like to know where on the CD-ROM the top level of the Debian
distribution is (eg. 'dists/stable') - this directory usually contains the
Packages-Master file.
If the CD-ROM is badly organised and doesn't have a straightforward copy of
the distribution you may answer 'none' and we'll go through the parts
I need individually."
else
echo \
"In order to make it easy for me to find the relevant files I'd ideally
like to install from a straightforward copy of the Debian distribution.
To use this I'll need to know where the top level of that copy of the
distribution is (eg. 'debian/dists/stable') - this directory usually
contains the Packages-Master file.
If you do not have a straightforward copy of the distribution available
just answer 'none' and we'll go through the parts I need individually."
fi
defhierbase=none
# maybe ask for debian/dists and then show and ask for available dists
# eg. {stable,frozen,unstable,bo,hamm,slink}
if [ -n "$p_hierbase" ]
then
if [ -d "$mountpoint/$p_hierbase/main/binary-$iarch" ]
then
echo "
Last time you said '$p_hierbase', and that looks plausible."
defhierbase="$p_hierbase"
else
echo "
Last time you said '$p_hierbase', but that doesn't look plausible,
since '$p_hierbase/main/binary-$iarch' doesn't seem to exist."
fi
fi
if [ none = "$defhierbase" ]
then
if [ -d "$mountpoint/debian/dists/stable/main/binary-$iarch" ]
then
echo "
'/debian/dists/stable' exists and looks plausible, so that's the default."
defhierbase=/debian/dists/stable
elif [ -d "$mountpoint/dists/stable/main/binary-$iarch" ]
then
echo "
'/dists/stable' exists and looks plausible, so that's the default."
defhierbase=/dists/stable
fi
fi
echo -n \
"Distribution top level ? [$defhierbase] "
read response
if [ -z "$response" ]
then
response="$defhierbase"
fi
if [ none = "$response" ]
then
hierbase=""
break
elif [ -d "$mountpoint/$response/main/binary-$iarch" ]
then
hierbase="`echo \"$response\" | sed -e 's:/*$::; s:^/*:/:'`"
break
fi
echo \
"$response/main/binary-$iarch does not exist.
"
done
case "$hierbase" in
/* ) ;;
'' ) ;;
* ) hierbase="/$hierbase" ;;
esac
check_binary () {
# args: area-in-messages directory
# eg: main "$hierbase/main/binary-$iarch"
# checks whether $2 contains *.deb
if ! [ -d "$mountpoint$2/" ]
then
echo "'$2' does not exist."
return
fi
if ! ( find -L "$mountpoint$2/" -name '*.deb' -print \
| head -n 1 ) 2>/dev/null | grep . >/dev/null
then
echo "'$2' does not contain any *.deb packages. Hmmpf."
return
fi
echo "Using '$2' as $1 binary dir."
this_binary="$2"
}
find_area () {
# args: area-in-messages area-in-vars subdirectory-in-hier
# last-time-binary last-time-packages
# eg: main main main
# "$p_main_binary" "$p_main_packages"
this_binary=''
this_packages=''
if [ -n "$hierbase" ]
then
check_binary $1 "$hierbase/$3/binary-$iarch"
fi
if [ $option = cdrom ] && [ $2 = nf ] && [ -z "$this_binary" ]
then
echo "
Note: most CD-ROM distributions of Debian do not include programs
available in the 'non-free' directory of the distribution site.
This is because these programs have copyrights that prevent
distribution for profit on a CD-ROM - ie they are not free software.
If you wish to install these programs you'll have to get them from an
alternative source."
elif [ $2 = lcl ] && [ -z "$this_binary" ]
then
echo "
Note: By default there is no 'local' directory. It is intended for
packages you made yourself."
fi
while [ -z "$this_binary" ]
do
defaultbinary="$4"
echo "
Which directory contains the *.deb packages from the $1 distribution
area (this directory is named '$3/binary-$iarch' on the distribution site) ?
Say 'none' if this area is not available."
if [ $2 != main ] && [ -z "$defaultbinary" ]
then
defaultbinary=none
fi
echo -n \
"Enter _$1_ binary dir. [$4]
? "
read response
if [ -z "$response" ] && [ -n "$defaultbinary" ]
then
response="$defaultbinary"
fi
if [ none = "$response" ]
then
break
fi
case "$response" in
'' | none) continue ;;
esac
check_binary $1 "`echo \"$response\" | sed -e 's:/$::; s:^/*:/:'`"
done
if [ -n "$this_binary" ]
then
for f in Packages.gz packages.gz Packages packages
do
if [ -f "$mountpoint/$this_binary/$f" ]
then
echo "Using '$this_binary/$f' for $1."
this_packages="$this_binary/$f"
break
fi
done
while [ -z "$this_packages" ]
do
echo -n "
I can't find the $1 'Packages' file. The information in the
'Packages' file is important for package selection during new
installations, and is very useful for upgrades.
If you overlooked it when downloading you should do get it now and
return to this installation procedure when you have done so: you will
find one Packages file and one Packages.gz file -- either will do --
in the 'binary-$iarch' subdirectory of each area on the FTP sites and
CD-ROMs. Alternatively (and this will be rather slow) I can scan the
packages in the distribution area - say 'scan' if you want me to do so.
You need a separate Packages file from each of the distribution areas
you wish to install.
Where is the _$1_ 'Packages' file (if none is available, say 'none')
[$5]
? "
read response
if [ -z "$response" ] && [ -n "$5" ]
then
response="$5"
fi
case "$response" in
'') continue ;;
none) break ;;
scan) this_packages=scan ;;
/*) this_packages="$response" ;;
*) this_packages="/$response" ;;
esac
done
fi
eval $2'_binary="$this_binary"'
eval $2'_packages="$this_packages"'
}
find_area main main main "$p_main_binary" "$p_main_packages"
find_area contrib ctb contrib "$p_ctb_binary" "$p_ctb_packages"
find_area non-free nf non-free "$p_nf_binary" "$p_nf_packages"
find_area non-US nus non-US "$p_nus_binary" "$p_nus_packages"
find_area local lcl local "$p_lcl_binary" "$p_lcl_packages"
echo -n '
Hit RETURN to continue. '
read response
exec 3>shvar.$option.new
outputparam p_blockdev "$blockdevice"
outputparam p_fstype "$fstype"
outputparam p_mountpoint "$mountpoint"
outputparam p_nfsserver "$nfsserver"
outputparam p_nfsrempath "$nfsrempath"
outputparam p_nfs "$nfs"
outputparam p_hierbase "$hierbase"
outputparam p_main_packages "$main_packages"
outputparam p_main_binary "$main_binary"
outputparam p_ctb_packages "$ctb_packages"
outputparam p_ctb_binary "$ctb_binary"
outputparam p_nf_packages "$nf_packages"
outputparam p_nf_binary "$nf_binary"
outputparam p_nus_packages "$nus_packages"
outputparam p_nus_binary "$nus_binary"
outputparam p_lcl_packages "$lcl_packages"
outputparam p_lcl_binary "$lcl_binary"
mv shvar.$option.new shvar.$option
xit=0
|