/etc/init.d/checkfs.sh is in initscripts 2.88dsf-59.3ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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### BEGIN INIT INFO
# Provides: checkfs
# Required-Start: checkroot
# Required-Stop:
# Should-Start:
# Default-Start: S
# Default-Stop:
# X-Interactive: true
# Short-Description: Check all filesystems.
### END INIT INFO
# Include /usr/bin in path to find on_ac_power if /usr/ is on the root
# partition.
PATH=/sbin:/bin:/usr/bin
FSCK_LOGFILE=/var/log/fsck/checkfs
[ "$FSCKFIX" ] || FSCKFIX=no
. /lib/init/vars.sh
. /lib/lsb/init-functions
. /lib/init/mount-functions.sh
. /lib/init/swap-functions.sh
do_start () {
# Trap SIGINT so that we can handle user interupt of fsck.
trap "" INT
# See if we're on AC Power. If not, we're not gonna run our
# check. If on_ac_power (in /usr/) is unavailable, behave as
# before and check all file systems needing it.
# Disabled AC power check until fsck can be told to only check the
# file system if it is corrupt when running on battery. (bug #526398)
# if which on_ac_power >/dev/null 2>&1
# then
# on_ac_power >/dev/null 2>&1
# if [ $? -eq 1 ]
# then
# [ "$VERBOSE" = no ] || log_success_msg "Running on battery power, so skipping file system check."
# BAT=yes
# fi
# fi
BAT=""
fscheck="yes"
if is_fastboot_active
then
[ "$fscheck" = yes ] && log_warning_msg "Fast boot enabled, so skipping file system check."
fscheck=no
fi
#
# Check the rest of the file systems.
#
if [ "$fscheck" = yes ] && [ ! "$BAT" ] && [ "$FSCKTYPES" != "none" ]
then
# Execute swapon command again, in case there are lvm
# or md swap partitions. fsck can suck RAM.
swaponagain 'lvm and md'
if [ -f /forcefsck ] || grep -q -s -w -i "forcefsck" /proc/cmdline
then
force="-f"
else
force=""
fi
if [ "$FSCKFIX" = yes ]
then
fix="-y"
else
fix="-a"
fi
spinner="-C"
case "$TERM" in
dumb|network|unknown|"")
spinner=""
;;
esac
[ "$(uname -m)" = s390x ] && spinner="" # This should go away
FSCKTYPES_OPT=""
[ "$FSCKTYPES" ] && FSCKTYPES_OPT="-t $FSCKTYPES"
handle_failed_fsck() {
log_failure_msg "File system check failed.
A log is being saved in ${FSCK_LOGFILE} if that location is writable.
Please repair the file system manually."
log_warning_msg "A maintenance shell will now be started.
CONTROL-D will terminate this shell and resume system boot."
# Start a single user shell on the console
if ! sulogin $CONSOLE
then
log_failure_msg "Attempt to start maintenance shell failed.
Continuing with system boot in 5 seconds."
sleep 5
fi
}
if [ "$VERBOSE" = no ]
then
log_action_begin_msg "Checking file systems"
logsave -s $FSCK_LOGFILE fsck $spinner -M -A $fix $force $FSCKTYPES_OPT
FSCKCODE=$?
if [ "$FSCKCODE" -eq 32 ]
then
log_action_end_msg 1 "code $FSCKCODE"
log_warning_msg "File system check was interrupted by user"
elif [ "$FSCKCODE" -gt 1 ]
then
log_action_end_msg 1 "code $FSCKCODE"
handle_failed_fsck
else
log_action_end_msg 0
fi
else
if [ "$FSCKTYPES" ]
then
log_action_msg "Will now check all file systems of types $FSCKTYPES"
else
log_action_msg "Will now check all file systems"
fi
logsave -s $FSCK_LOGFILE fsck $spinner -V -M -A $fix $force $FSCKTYPES_OPT
FSCKCODE=$?
if [ "$FSCKCODE" -eq 32 ]
then
log_warning_msg "File system check was interrupted by user"
elif [ "$FSCKCODE" -gt 1 ]
then
handle_failed_fsck
else
log_success_msg "Done checking file systems.
A log is being saved in ${FSCK_LOGFILE} if that location is writable."
fi
fi
fi
rm -f /fastboot /forcefsck 2>/dev/null
}
case "$1" in
start|"")
do_start
;;
restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
stop|status)
# No-op
;;
*)
echo "Usage: checkfs.sh [start|stop]" >&2
exit 3
;;
esac
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