166 lines
3.7 KiB
Bash
Executable File
166 lines
3.7 KiB
Bash
Executable File
#
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# checkroot.sh Check to root filesystem.
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#
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# Version: @(#)checkroot.sh 2.84 25-Jan-2002 miquels@cistron.nl
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#
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. /etc/default/rcS
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#
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# Set SULOGIN in /etc/default/rcS to yes if you want a sulogin to be spawned
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# from this script *before anything else* with a timeout, like SCO does.
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#
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test "$SULOGIN" = yes && sulogin -t 30 $CONSOLE
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#
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# Ensure that bdflush (update) is running before any major I/O is
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# performed (the following fsck is a good example of such activity :).
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#
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test -x /sbin/update && update
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#
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# Read /etc/fstab.
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#
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exec 9>&0 </etc/fstab
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rootmode=rw
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rootopts=rw
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rootcheck=no
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swap_on_md=no
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devfs=
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while read fs mnt type opts dump pass junk
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do
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case "$fs" in
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""|\#*)
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continue;
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;;
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/dev/md*)
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# Swap on md device.
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test "$type" = swap && swap_on_md=yes
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;;
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/dev/*)
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;;
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*)
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# Might be a swapfile.
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test "$type" = swap && swap_on_md=yes
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;;
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esac
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test "$type" = devfs && devfs="$fs"
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test "$mnt" != / && continue
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rootopts="$opts"
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test "$pass" = 0 -o "$pass" = "" && rootcheck=no
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case "$opts" in
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ro|ro,*|*,ro|*,ro,*)
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rootmode=ro
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;;
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esac
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done
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exec 0>&9 9>&-
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#
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# Activate the swap device(s) in /etc/fstab. This needs to be done
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# before fsck, since fsck can be quite memory-hungry.
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#
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doswap=no
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test -d /proc/1 || mount -n /proc
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case "`uname -r`" in
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2.[0123].*)
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if test $swap_on_md = yes && grep -qs resync /proc/mdstat
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then
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test "$VERBOSE" != no && echo "Not activating swap - RAID array resyncing"
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else
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doswap=yes
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fi
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;;
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*)
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doswap=yes
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;;
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esac
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if test $doswap = yes
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then
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test "$VERBOSE" != no && echo "Activating swap"
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swapon -a 2> /dev/null
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fi
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#
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# Check the root filesystem.
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#
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if test -f /fastboot || test $rootcheck = no
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then
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test $rootcheck = yes && echo "Fast boot, no filesystem check"
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else
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#
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# Ensure that root is quiescent and read-only before fsck'ing.
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#
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mount -n -o remount,ro /
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if test $? = 0
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then
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if test -f /forcefsck
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then
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force="-f"
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else
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force=""
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fi
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if test "$FSCKFIX" = yes
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then
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fix="-y"
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else
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fix="-a"
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fi
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spinner="-C"
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case "$TERM" in
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dumb|network|unknown|"") spinner="" ;;
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esac
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test `uname -m` = s390 && spinner="" # This should go away
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test "$VERBOSE" != no && echo "Checking root filesystem..."
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fsck $spinner $force $fix /
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#
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# If there was a failure, drop into single-user mode.
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#
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# NOTE: "failure" is defined as exiting with a return code of
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# 2 or larger. A return code of 1 indicates that filesystem
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# errors were corrected but that the boot may proceed.
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#
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if test "$?" -gt 1
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then
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# Surprise! Re-directing from a HERE document (as in
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# "cat << EOF") won't work, because the root is read-only.
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echo
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echo "fsck failed. Please repair manually and reboot. Please note"
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echo "that the root filesystem is currently mounted read-only. To"
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echo "remount it read-write:"
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echo
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echo " # mount -n -o remount,rw /"
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echo
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echo "CONTROL-D will exit from this shell and REBOOT the system."
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echo
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# Start a single user shell on the console
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/sbin/sulogin $CONSOLE
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reboot -f
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fi
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else
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echo "*** ERROR! Cannot fsck root fs because it is not mounted read-only!"
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echo
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fi
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fi
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#
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# If the root filesystem was not marked as read-only in /etc/fstab,
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# remount the rootfs rw but do not try to change mtab because it
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# is on a ro fs until the remount succeeded. Then clean up old mtabs
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# and finally write the new mtab.
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#
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mount -n -o remount,$rootmode /
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if test "$rootmode" = rw
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then
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if test ! -L /etc/mtab
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then
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rm -f /etc/mtab~ /etc/nologin
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: > /etc/mtab
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fi
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mount -f -o remount /
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mount -f /proc
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test "$devfs" && grep -q '^devfs /dev' /proc/mounts && mount -f "$devfs"
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fi
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: exit 0
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