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