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 emit starting JOB=shutdown
  25 emit started JOB=shutdown
  26
  27 rc_splash "reboot"
  28
  29 # Kill all processes.
  30 [ "${BASH+bash}" = bash ] && enable kill
  31
  32 runlevel=$1
  33 previous=$2
  34
  35 # Stop blogd before umounting /var
  36 if [ -x /sbin/blogd ]; then
  37         killall -q -QUIT blogd
  38 fi
  39
  40 if [ -e /dev/rtc -o -e /dev/rtc0 ]; then
  41         run_cmd "$(nls 'Syncing hardware clock to system time')" hwclock --systohc
  42 fi
  43
  44 # check for other processes.
  45 # there could be none if all services were terminated properly
  46 # pgrep -g 0 requires procps >= 3.2.6-1.1
  47 # XXX: pgrep is on /usr!
  48 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  49 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  50         run_cmd "Sending all processes the TERM signal" killall5 -15
  51 fi
  52
  53 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  54 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  55         sleep 5
  56         run_cmd "Sending all processes the KILL signal" killall5 -9
  57 fi
  58
  59 # Write to wtmp file before unmounting /var
  60 halt -w
  61
  62 if ! is_yes "$VSERVER"; then
  63         # Turn off swap, then unmount file systems.
  64         run_cmd "Turning off swap" swapoff -a
  65
  66         [ -x /etc/rc.d/rc.acct ] && /etc/rc.d/rc.acct stop
  67
  68         if [ -x /sbin/quotaoff ]; then
  69                 run_cmd "Turning off quotas for local filesystems" /sbin/quotaoff -a
  70         fi
  71
  72         # grab kexec_loaded state before we umount /sys
  73         kexec_loaded=`cat /sys/kernel/kexec_loaded 2>/dev/null`
  74
  75         # Unmount file systems, killing processes if we have to.
  76         sig=-15
  77         retry=3
  78         force=
  79         if [ -z "$UMOUNT_IGNORE" ]; then
  80                 UMOUNT_IGNORE="/"
  81         else
  82                 UMOUNT_IGNORE="/ $UMOUNT_IGNORE"
  83         fi
  84         remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  85                         $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
  86                         && $1 !~ /^(none|\/dev\/root)$/ \
  87                         && $2 !~ ig {print $2}' /proc/mounts)
  88         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  89                 show "Unmounting file systems"; busy
  90                 ERRORS=$(umount -a $force -t noproc 2>&1); rc=$?
  91
  92                 # we might had unmounted /usr, recheck $TPUT availability
  93                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
  94                 # TODO: look ahead the messages?
  95                 if is_yes "$TPUT"; then
  96                         TPUT=
  97                         rc_gettext_init
  98                 fi
  99
 100                 if [ $rc = 0 ]; then
 101                         ok
 102                 else
 103                         fail
 104                         [ -n "$ERRORS" ] && echo "$ERRORS"
 105                 fi
 106
 107                 sleep 2
 108                 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
 109                                 $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
 110                                 && $1 !~ /^(none|\/dev\/root)$/ \
 111                                 && $2 !~ ig {print $2}' /proc/mounts)
 112                 [ -z "$remaining" ] && break
 113                 fuser -k -m $sig $remaining > /dev/null
 114                 sleep 5
 115                 retry=$(($retry-1))
 116                 sig=-9
 117                 force="-f"
 118         done
 119
 120         run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 121
 122         if [ -x /sbin/vgchange ]; then
 123                 lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 124                 if [ "$lvmversion" = "2" ]; then
 125                         lvmsysinit="--sysinit"
 126                 else
 127                         lvmsysinit=""
 128                 fi
 129                 /sbin/vgchange -a n $lvmsysinit > /dev/null 2>&1
 130         fi
 131
 132         goraidtab=1
 133         if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 134                 if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 135                         /sbin/mdadm --stop --scan > /dev/null 2>&1
 136                         rc=$?
 137                         [ "$rc" -eq 0 ] && goraidtab=0
 138                 fi
 139         fi
 140
 141         # turn off raid
 142         if [ -x /sbin/raidstop -a -f /etc/raidtab -a "$goraidtab" -eq 1 ]; then
 143                 # we can not use raidstop -a here because this will only stop
 144                 # devices listed in the default config file which is not always
 145                 # the case. So we look only for the active raid devices
 146                 if [ -f /proc/mdstat ] ; then
 147                         mddevs=$(awk '/^md.* active/ {print $1}' /proc/mdstat)
 148                         for mddev in $mddevs ; do
 149                                 show "Turning off RAID for %s" "$mddev"
 150                                 daemon /sbin/raidstop /dev/$mddev
 151                         done
 152                         unset mddev mddevs
 153                 fi
 154                 # runcmd "Turning off RAID" /sbin/raidstop -a
 155         fi
 156
 157         show "Remounting remaining filesystems ro mode"; busy
 158         if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 159                 ok
 160         else
 161                 fail
 162         fi
 163         _rebootwhat="system"
 164 else
 165         _rebootwhat="vserver"
 166 fi
 167
 168 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 169         . /etc/rc.d/init.d/cryptsetup
 170
 171         show "Stopping disk encryption"
 172         halt_crypto && ok || fail
 173 fi
 174
 175 if [ "$runlevel" = "0" ] ; then
 176         show "The $_rebootwhat is halted"; ok
 177         if [ -f /fastboot ]; then
 178                 show "On the next boot fsck will be skipped."; ok
 179         fi
 180
 181         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 182                 . /etc/sysconfig/ups
 183                 if is_yes "$POWEROFF_UPS"; then
 184                         if [ -d /etc/ups.d ]; then
 185                                 for i in /etc/ups.d/*.sh; do
 186                                         [ ! -f $i -o ! -x $i ] && continue
 187                                         $i poweroff
 188                                 done
 189                         fi
 190                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 191                fi
 192         fi
 193         [ "$previous" != "unknown" ] && eval halt -d -p -f
 194 else
 195         show "Please stand by while rebooting the $_rebootwhat"; ok
 196         if [ -f /fastboot ]; then
 197                 show "On the next boot fsck will be skipped."; ok
 198         fi
 199
 200         # not really sure where thse events should go
 201         emit stopped JOB=shutdown
 202         emit stopping JOB=shutdown
 203
 204         if [ -x /sbin/kexec ] && [ "$kexec_loaded" = "1" ]; then
 205                 show "Will now restart with kexec"
 206                 /sbin/kexec -e
 207                 fail
 208         fi
 209
 210         [ "$previous" != "unknown" ] && eval reboot -d -f
 211 fi