diff options
Diffstat (limited to 'packages/initscripts/initscripts-1.0/checkroot')
| -rwxr-xr-x | packages/initscripts/initscripts-1.0/checkroot | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/packages/initscripts/initscripts-1.0/checkroot b/packages/initscripts/initscripts-1.0/checkroot new file mode 100755 index 0000000000..e5aa9aaf99 --- /dev/null +++ b/packages/initscripts/initscripts-1.0/checkroot @@ -0,0 +1,215 @@ +# +# checkroot.sh Check to root filesystem. +# +# Version: @(#)checkroot.sh 2.84 25-Jan-2002 miquels@cistron.nl +# + +. /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 $CONSOLE + +# +# Ensure that bdflush (update) is running before any major I/O is +# performed (the following fsck is a good example of such activity :). +# +test -x /sbin/update && update + +# +# Read /etc/fstab. +# +exec 9>&0 </etc/fstab +rootmode=rw +rootopts=rw +test "$ENABLE_ROOTFS_FSCK" = yes && rootcheck="yes" || rootcheck="no" +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="$fs" + + # Currently we do not care about the other entries + if test "$mnt" = "/" + then + #echo "[$fs] [$mnt] [$type] [$opts] [$dump] [$pass] [$junk]" + + rootopts="$opts" + roottype="$type" + + #The "spinner" is broken on busybox sh + TERM=dumb + + test "$pass" = 0 -o "$pass" = "" && rootcheck=no + + # Allow fsck for ext2 and ext3 rootfs, disable for everything else + case "$type" in + ext2|ext3) ;; + *) rootcheck=no;; + esac + + if test "$rootcheck" = yes + then + if ! test -x "/sbin/fsck.${roottype}" + then + echo -e "\n * * * WARNING: /sbin/fsck.${roottype} is missing! * * *\n" + rootcheck=no + fi + fi + + case "$opts" in + ro|ro,*|*,ro|*,ro,*) + rootmode=ro + ;; + esac + fi +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. +# +doswap=no +test -d /proc/1 || mount -n /proc +case "`uname -r`" in + 2.[0123].*) + if test $swap_on_md = yes && grep -qs resync /proc/mdstat + then + test "$VERBOSE" != no && echo "Not activating swap - RAID array resyncing" + else + doswap=yes + fi + ;; + *) + doswap=yes + ;; +esac +if test $doswap = yes +then + test "$VERBOSE" != no && echo "Activating swap" + swapon -a 2> /dev/null +fi + +# +# Check the root filesystem. +# +if test -f /fastboot || test $rootcheck = no +then + test $rootcheck = yes && echo "Fast boot, no filesystem check" +else + # + # 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 "$TERM" in + dumb|network|unknown|"") spinner="" ;; + esac + test `uname -m` = s390 && spinner="" # This should go away + test "$VERBOSE" != no && echo "Checking root filesystem..." + fsck $spinner $force $fix / </dev/null + RTC=$? + # + # 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. + # + + echo "RETURNCODE: [$RTC]" + + if test "$RTC" -gt 3 + then + + # Since this script is run very early in the boot-process, it should be safe to assume that the + # output is printed to VT1. However, some distributions use a bootsplash to hide the "ugly" boot + # messages and having the bootsplash "hang" due to a waiting fsck prompt is less than ideal + chvt 1 + + # 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. " + echo "Please note that the root filesystem is currently " + echo "mounted read-only. To remount it read-write:" + echo + echo " # mount -n -o remount,rw /" + echo + echo "CONTROL-D will exit from this shell" + echo "and REBOOT the system." + echo + # Start a single user shell on the console + /sbin/sulogin $CONSOLE + reboot -f + fi + else + echo "*** ERROR! Cannot fsck root fs because it is not mounted read-only!" + echo + fi +fi + +# +# If the root filesystem was not marked as read-only in /etc/fstab, +# remount the rootfs rw but do not try to change mtab because it +# is on a ro fs until the remount succeeded. Then clean up old mtabs +# and finally write the new mtab. +# This part is only needed if the rootfs was mounted ro. +# +ROOTFSDEV="/dev/root" +if ! grep -q "^$ROOTFSDEV\w" /proc/mounts; then + ROOTFSDEV="rootfs" +fi +if [ x$(grep "^$ROOTFSDEV\w" /proc/mounts | awk '{print $4}') = "xrw" ]; then + echo "Root filesystem already read-write, not remounting" + exit 0 +fi + +echo "Remounting root file system..." +mount -n -o remount,$rootmode / +if test "$rootmode" = rw +then + if test ! -L /etc/mtab + then + rm -f /etc/mtab~ /etc/nologin + : > /etc/mtab + fi + mount -f -o remount / + mount -f -o remount /proc + test "$devfs" && grep -q '^devfs /dev' /proc/mounts && mount -f "$devfs" +fi + +: exit 0 |