/etc/init.d/umountfs is in initscripts 2.88dsf-41ubuntu6.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | #! /bin/sh
### BEGIN INIT INFO
# Provides: umountfs
# Required-Start:
# Required-Stop: umountroot
# Default-Start:
# Default-Stop: 0 6
# Short-Description: Turn off swap and unmount all local file systems.
# Description:
### END INIT INFO
PATH=/sbin:/usr/sbin:/bin:/usr/bin
. /lib/init/vars.sh
. /lib/lsb/init-functions
umask 022
do_stop () {
PROTECTED_MOUNTS="$(sed -n ':a;/^[^ ]* \/ /!{H;n;ba};{H;s/.*//;x;s/\n//;p}' /proc/mounts)"
WEAK_MTPTS="" # be gentle, don't use force
REG_MTPTS=""
TMPFS_MTPTS=""
while read -r DEV MTPT FSTYPE REST
do
echo "$PROTECTED_MOUNTS" | grep -qs "^$DEV $MTPT " && continue
case "$MTPT" in
/|/proc|/dev|/.dev|/dev/pts|/dev/shm|/dev/.static/dev|/proc/*|/sys|/sys/*|/run|/run/*)
continue
;;
esac
case "$FSTYPE" in
proc|procfs|linprocfs|sysfs|usbfs|usbdevfs|devpts)
continue
;;
tmpfs)
TMPFS_MTPTS="$MTPT $TMPFS_MTPTS"
;;
*)
if echo "$PROTECTED_MOUNTS" | grep -qs "^$DEV "; then
WEAK_MTPTS="$MTPT $WEAK_MTPTS"
else
REG_MTPTS="$MTPT $REG_MTPTS"
fi
;;
esac
done < /proc/mounts
#
# Make sure tmpfs file systems are umounted before turning off
# swap, to avoid running out of memory if the tmpfs filesystems
# use a lot of space.
#
if [ "$TMPFS_MTPTS" ]
then
if [ "$VERBOSE" = no ]
then
log_action_begin_msg "Unmounting temporary filesystems"
fstab-decode umount $TMPFS_MTPTS
log_action_end_msg $?
else
log_daemon_msg "Will now unmount temporary filesystems"
fstab-decode umount -v $TMPFS_MTPTS
log_end_msg $?
fi
fi
#
# Deactivate swap
#
if [ "$VERBOSE" = no ]
then
log_action_begin_msg "Deactivating swap"
swapoff -a >/dev/null
log_action_end_msg $?
else
log_daemon_msg "Will now deactivate swap"
swapoff -a -v
log_end_msg $?
fi
#
# Unmount local filesystems
#
if [ "$WEAK_MTPTS" ]; then
# Do not use -f umount option for WEAK_MTPTS
if [ "$VERBOSE" = no ]
then
log_action_begin_msg "Unmounting weak filesystems"
fstab-decode umount -r -d $WEAK_MTPTS
log_action_end_msg $?
else
log_daemon_msg "Will now unmount weak filesystems"
fstab-decode umount -v -r -d $WEAK_MTPTS
log_end_msg $?
fi
fi
if [ "$REG_MTPTS" ]
then
if [ "$VERBOSE" = no ]
then
log_action_begin_msg "Unmounting local filesystems"
fstab-decode umount -f -r -d $REG_MTPTS
log_action_end_msg $?
else
log_daemon_msg "Will now unmount local filesystems"
fstab-decode umount -f -v -r -d $REG_MTPTS
log_end_msg $?
fi
fi
}
case "$1" in
start)
# No-op
;;
restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
stop)
do_stop
;;
*)
echo "Usage: $0 start|stop" >&2
exit 3
;;
esac
:
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