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|
#!/bin/sh
# checkroot.sh Check to root filesystem.
#
# Version: @(#)checkroot.sh 2.84 25-Jan-2002 miquels@cistron.nl
#
. /etc/default/functions
. /etc/default/rcS
#
# Set SULOGIN in /etc/default/rcS to yes if you want a sulogin to be spawned
# from this script *before anything else* with a timeout, like SCO does.
#
test "$SULOGIN" = yes && sulogin -t 30 $CONSOLE
#
# Ensure that bdflush (update) is running before any major I/O is
# performed (the following fsck is a good example of such activity :).
#
test -x /sbin/update && update
#
# Read /etc/fstab.
#
exec 9>&0 </etc/fstab
rootmode=rw
rootopts=rw
swap_on_md=no
devfs=
while read fs mnt type opts dump pass junk
do
case "$fs" in
""|\#*)
continue;
;;
/dev/md*)
# Swap on md device.
test "$type" = swap && swap_on_md=yes
;;
/dev/*)
;;
*)
# Might be a swapfile.
test "$type" = swap && swap_on_md=yes
;;
esac
test "$type" = devfs && devfs="$fs"
test "$mnt" != / && continue
rootopts="$opts"
test "$pass" = 0 -o "$pass" = "" && ROOTFSCK=no
case "$opts" in
ro|ro,*|*,ro|*,ro,*)
rootmode=ro
;;
esac
done
exec 0>&9 9>&-
#
# Activate the swap device(s) in /etc/fstab. This needs to be done
# before fsck, since fsck can be quite memory-hungry.
#
# We don't test whether we're running a 2.[0123].x kernel and md
# since that's plain too old.
if test "$DOSWAP" != no
then
swaps="$(blkid -t TYPE=swap -o device 2>/dev/null)"
if test -n "$swaps"
then
swapon $swaps 2>/dev/null
else
swapon -a 2> /dev/null
fi
fi
#
# Check the root filesystem.
#
if test -f /fastboot || test "$ROOTFSCK" != yes
then
test "$ROOTFSCK" = yes && echo "Fast boot, no filesystem check"
elif test ! -x /sbin/fsck -a ! -x /usr/sbin/fsck
then
echo "/etc/init.d/checkroot.sh: no fsck"
else
leds disk-1 slow
#
# Ensure that root is quiescent and read-only before fsck'ing.
#
mount -n -o remount,ro /
if test $? = 0
then
if test -f /forcefsck
then
force="-f"
else
force=""
fi
if test "$FSCKFIX" = yes
then
fix="-y"
else
fix="-a"
fi
spinner="-C"
case "$TERM" in
dumb|network|unknown|"") spinner="" ;;
esac
test "$VERBOSE" != no && echo "Checking root filesystem..."
fsck $spinner $force $fix /
#
# If there was a failure, drop into single-user mode.
#
# NOTE: "failure" is defined as exiting with a return code of
# 2 or larger. A return code of 1 indicates that filesystem
# errors were corrected but that the boot may proceed.
#
if test "$?" -gt 1
then
# Surprise! Re-directing from a HERE document (as in
# "cat << EOF") won't work, because the root is read-only.
echo
echo "fsck failed. Please repair manually and reboot. Please note"
echo "that the root filesystem is currently mounted read-only. To"
echo "remount it read-write:"
echo
echo " # mount -n -o remount,rw /"
echo
echo "CONTROL-D will exit from this shell and REBOOT the system."
echo
leds system panic
leds beep -r 5
# Start a single user shell on the console
if single_user_ok
then
sulogin -t 600 $CONSOLE
# if this exits with SIGALRM (which happens to be 142) the
# timeout happened, do not, then, reboot!
if test $? -ne 142
then
reboot -f
else
echo "/etc/init.d/checkroot.sh: sulogin timeout, continuing boot"
fi
else
echo "/etc/init.d/checkroot.sh: fsck failed, continuing boot"
fi
fi
else
echo "*** ERROR! Cannot fsck root fs because it is not mounted read-only!"
echo
fi
leds disk-1 off
fi
#
# If the root filesystem was not marked as read-only in /etc/fstab,
# remount the rootfs rw but do not try to change mtab because it
# is on a ro fs until the remount succeeded. Then clean up old mtabs
# and finally write the new mtab.
#
mount -n -o remount,$rootopts /
if test "$rootmode" = rw
then
if test ! -L /etc/mtab
then
rm -f /etc/mtab~ /etc/nologin
: > /etc/mtab
fi
mount -f -o remount /
mount -f /proc
mount -f /sys
test "$devfs" && grep -q '^devfs /dev' /proc/mounts && mount -f "$devfs"
fi
: exit 0
|
