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 emit pld.shutdown-started
  24
  25 rc_splash "reboot"
  26
  27 # Kill all processes.
  28 [ "${BASH+bash}" = bash ] && enable kill
  29
  30 runlevel=$1
  31 previous=$2
  32
  33 # Stop blogd before umounting /var
  34 if [ -x /sbin/blogd ]; then
  35         killall -q -QUIT blogd
  36 fi
  37
  38 # check for other processes.
  39 # there could be none if all services were terminated properly
  40 # pgrep -g 0 requires procps >= 3.2.6-1.1
  41 # XXX: pgrep is on /usr!
  42 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  43 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  44         run_cmd "Sending all processes the TERM signal" killall5 -15
  45 fi
  46
  47 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  48 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  49         sleep 5
  50         run_cmd "Sending all processes the KILL signal" killall5 -9
  51 fi
  52
  53 # Write to wtmp file before unmounting /var
  54 halt -w
  55
  56 if ! is_yes "$VSERVER"; then
  57         # Turn off swap, then unmount file systems.
  58         run_cmd "Turning off swap" swapoff -a
  59
  60         [ -x /etc/rc.d/rc.acct ] && /etc/rc.d/rc.acct stop
  61
  62         if [ -x /sbin/quotaoff ]; then
  63                 run_cmd "Turning off quotas for local filesystems" /sbin/quotaoff -a
  64         fi
  65
  66         # grab kexec_loaded state before we umount /sys
  67         kexec_loaded=`cat /sys/kernel/kexec_loaded 2>/dev/null`
  68
  69         # Unmount file systems, killing processes if we have to.
  70         sig=-15
  71         retry=3
  72         force=
  73         if [ -z "$UMOUNT_IGNORE" ]; then
  74                 UMOUNT_IGNORE="/"
  75         else
  76                 UMOUNT_IGNORE="/ $UMOUNT_IGNORE"
  77         fi
  78         remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  79                         $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
  80                         && $1 !~ /^(none|\/dev\/root)$/ \
  81                         && $2 !~ ig {print $2}' /proc/mounts)
  82         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  83                 show "Unmounting file systems"; busy
  84                 ERRORS=$(umount -a $force -t noproc 2>&1); rc=$?
  85
  86                 # we might had unmounted /usr, recheck $TPUT availability
  87                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
  88                 # TODO: look ahead the messages?
  89                 if is_yes "$TPUT"; then
  90                         TPUT=
  91                         rc_gettext_init
  92                 fi
  93
  94                 if [ $rc = 0 ]; then
  95                         ok
  96                 else
  97                         fail
  98                         [ -n "$ERRORS" ] && echo "$ERRORS"
  99                 fi
 100
 101                 sleep 2
 102                 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
 103                                 $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
 104                                 && $1 !~ /^(none|\/dev\/root)$/ \
 105                                 && $2 !~ ig {print $2}' /proc/mounts)
 106                 [ -z "$remaining" ] && break
 107                 fuser -k -m $sig $remaining > /dev/null
 108                 sleep 5
 109                 retry=$(($retry-1))
 110                 sig=-9
 111                 force="-f"
 112         done
 113
 114         run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 115
 116         if [ -x /sbin/vgchange ]; then
 117                 lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 118                 if [ "$lvmversion" = "2" ]; then
 119                         lvmignorelock="--ignorelockingfailure"
 120                 else
 121                         lvmignorelock=""
 122                 fi
 123                 run_cmd "Stopping LVM volume groups" /sbin/vgchange -a n $lvmignorelock
 124         fi
 125
 126         goraidtab=1
 127         if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 128                 if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 129                         /sbin/mdadm --stop --scan > /dev/null 2>&1
 130                         rc=$?
 131                         [ "$rc" -eq 0 ] && goraidtab=0
 132                 fi
 133         fi
 134
 135         # turn off raid
 136         if [ -x /sbin/raidstop -a -f /etc/raidtab -a "$goraidtab" -eq 1 ]; then
 137                 # we can not use raidstop -a here because this will only stop
 138                 # devices listed in the default config file which is not always
 139                 # the case. So we look only for the active raid devices
 140                 if [ -f /proc/mdstat ] ; then
 141                         mddevs=$(awk '/^md.* active/ {print $1}' /proc/mdstat)
 142                         for mddev in $mddevs ; do
 143                                 show "Turning off RAID for %s" "$mddev"
 144                                 daemon /sbin/raidstop /dev/$mddev
 145                         done
 146                         unset mddev mddevs
 147                 fi
 148                 # runcmd "Turning off RAID" /sbin/raidstop -a
 149         fi
 150
 151         show "Remounting remaining filesystems ro mode"; busy
 152         if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 153                 ok
 154         else
 155                 fail
 156         fi
 157         _rebootwhat="system"
 158 else
 159         _rebootwhat="vserver"
 160 fi
 161
 162 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 163         . /etc/rc.d/init.d/cryptsetup
 164
 165         show "Stopping disk encryption"
 166         halt_crypto && ok || fail
 167 fi
 168
 169 if [ "$runlevel" = "0" ] ; then
 170         show "The $_rebootwhat is halted"; ok
 171         if [ -f /fastboot ]; then
 172                 show "On the next boot fsck will be skipped."; ok
 173         fi
 174
 175         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 176                 . /etc/sysconfig/ups
 177                 if is_yes "$POWEROFF_UPS"; then
 178                         if [ -d /etc/ups.d ]; then
 179                                 for i in /etc/ups.d/*.sh; do
 180                                         [ ! -f $i -o ! -x $i ] && continue
 181                                         $i poweroff
 182                                 done
 183                         fi
 184                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 185                fi
 186         fi
 187         [ "$previous" != "unknown" ] && eval halt -d -p -f
 188 else
 189         show "Please stand by while rebooting the $_rebootwhat"; ok
 190         if [ -f /fastboot ]; then
 191                 show "On the next boot fsck will be skipped."; ok
 192         fi
 193
 194         if [ -x /sbin/kexec ] && [ "$kexec_loaded" = "1" ]; then
 195                 show "Will now restart with kexec"
 196                 /sbin/kexec -e
 197                 fail
 198         fi
 199
 200         [ "$previous" != "unknown" ] && eval reboot -d -f
 201 fi