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