rc.d/rc.shutdown

   1 #!/bin/sh
   2 #
   3 # shutdown      Common script for system halt/reboot.
   4 #
   5 # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
   6 #
   7 # $Id$
   8
   9 # Set the path.
  10 PATH=/sbin:/bin:/usr/bin:/usr/sbin
  11
  12 # move to root dir
  13 cd /
  14
  15 IN_SHUTDOWN=yes
  16
  17 . /etc/rc.d/init.d/functions
  18
  19 # avoid keyboard interruption
  20 trap "echo" INT SEGV QUIT TERM
  21 set +e
  22
  23 rc_splash "reboot"
  24
  25 # Kill all processes.
  26 [ "${BASH+bash}" = bash ] && enable kill
  27
  28 runlevel=$1
  29 previous=$2
  30
  31 # Stop blogd before umounting /var
  32 if [ -x /sbin/blogd ]; then
  33         killall -q -QUIT blogd
  34 fi
  35
  36 # check for other processes.
  37 # there could be none if all services were terminated properly
  38 # pgrep -g 0 requires procps >= 3.2.6-1.1
  39 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  40 if [ -n "$pids" ]; then
  41         run_cmd "Sending all processes the TERM signal" killall5 -15
  42 fi
  43
  44 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  45 if [ -n "$pids" ]; then
  46         sleep 5
  47         run_cmd "Sending all processes the KILL signal" killall5 -9
  48 fi
  49
  50 # Write to wtmp file before unmounting /var
  51 halt -w
  52
  53 if ! is_yes "$VSERVER"; then
  54         # Turn off swap, then unmount file systems.
  55         run_cmd "Turning off swap" swapoff -a
  56
  57         [ -x /etc/rc.d/rc.acct ] && /etc/rc.d/rc.acct stop
  58
  59         if [ -x /sbin/quotaoff ]; then
  60                 run_cmd "Turning off quotas for local filesystems" /sbin/quotaoff -a
  61         fi
  62
  63         # Unmount file systems, killing processes if we have to.
  64         sig=-15
  65         retry=3
  66         force=
  67         if [ -z "$UMOUNT_IGNORE" ]; then
  68                 UMOUNT_IGNORE="/"
  69         else
  70                 UMOUNT_IGNORE="/ $UMOUNT_IGNORE"
  71         fi
  72         remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  73                         $3 !~ /^(proc|loopfs|devpts|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
  74                         && $1 !~ /^(none|\/dev\/root)$/ \
  75                         && $2 !~ ig {print $2}' /proc/mounts)
  76         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  77                 show "Unmounting file systems"; busy
  78                 ERRORS=$(umount -a $force -t noproc 2>&1); rc=$?
  79
  80                 # we might had unmounted /usr, recheck $TPUT availability
  81                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
  82                 # TODO: look ahead the messages?
  83                 if is_yes "$TPUT"; then
  84                         TPUT=
  85                         rc_gettext_init
  86                 fi
  87
  88                 if [ $rc = 0 ]; then
  89                         ok
  90                 else
  91                         fail
  92                         [ -n "$ERRORS" ] && echo "$ERRORS"
  93                 fi
  94
  95                 sleep 2
  96                 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  97                                 $3 !~ /^(proc|loopfs|devpts|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
  98                                 && $1 !~ /^(none|\/dev\/root)$/ \
  99                                 && $2 !~ ig {print $2}' /proc/mounts)
 100                 [ -z "$remaining" ] && break
 101                 fuser -k -m $sig $remaining > /dev/null
 102                 sleep 5
 103                 retry=$(($retry-1))
 104                 sig=-9
 105                 force="-f"
 106         done
 107
 108         run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 109
 110         if is_yes "$EVMS_LVM" || [ -x /sbin/vgchange ]; then
 111                 lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 112                 if [ "$lvmversion" = "2" ] ; then
 113                         lvmignorelock="--ignorelockingfailure"
 114                 else
 115                         lvmignorelock=""
 116                 fi
 117                 run_cmd "Stopping LVM volume groups" /sbin/vgchange -a n $lvmignorelock
 118         fi
 119
 120         goraidtab=1
 121         if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 122                 if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 123                         /sbin/mdadm --stop --scan > /dev/null 2>&1
 124                         rc=$?
 125                         [ "$rc" -eq 0 ] && goraidtab=0
 126                 fi
 127         fi
 128
 129         # turn off raid
 130         if [ -x /sbin/raidstop -a -f /etc/raidtab -a "$goraidtab" -eq 1 ]; then
 131                 # we can not use raidstop -a here because this will only stop
 132                 # devices listed in the default config file which is not always
 133                 # the case. So we look only for the active raid devices
 134                 if [ -f /proc/mdstat ] ; then
 135                         mddevs=$(awk '/^md.* active/ {print $1}' /proc/mdstat)
 136                         for mddev in $mddevs ; do
 137                                 show "Turning off RAID for %s" "$mddev"
 138                                 daemon /sbin/raidstop /dev/$mddev
 139                         done
 140                         unset mddev mddevs
 141                 fi
 142                 # runcmd "Turning off RAID" /sbin/raidstop -a
 143         fi
 144
 145         show "Remounting remaining filesystems ro mode"; busy
 146         if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 147                 ok
 148         else
 149                 fail
 150         fi
 151         _rebootwhat="system"
 152 else
 153         _rebootwhat="vserver"
 154 fi
 155
 156 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 157         . /etc/rc.d/init.d/cryptsetup
 158
 159         show "Stopping disk encryption"
 160         halt_crypto && ok || fail
 161 fi
 162
 163 if [ "$runlevel" = "0" ] ; then
 164         show "The $_rebootwhat is halted"; ok
 165         if [ -f /fastboot ]; then
 166                 show "On the next boot fsck will be skipped."; ok
 167         fi
 168
 169         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 170                 . /etc/sysconfig/ups
 171                 if is_yes "$POWEROFF_UPS"; then
 172                         if [ -d /etc/ups.d ]; then
 173                                 for i in /etc/ups.d/*.sh; do
 174                                         [ ! -f $i -o ! -x $i ] && continue
 175                                         $i poweroff
 176                                 done
 177                         fi
 178                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 179                fi
 180         fi
 181         [ "$previous" != "unknown" ] && eval halt -d -p -f
 182 else
 183         show "Please stand by while rebooting the $_rebootwhat"; ok
 184         if [ -f /fastboot ]; then
 185                 show "On the next boot fsck will be skipped."; ok
 186         fi
 187         [ -x /sbin/kexec ] && /sbin/kexec -e
 188         [ "$previous" != "unknown" ] && eval reboot -d -f
 189 fi