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
   8 # Set the path.
   9 PATH=/sbin:/bin:/usr/bin:/usr/sbin
  10
  11 # move to root dir
  12 cd /
  13
  14 IN_SHUTDOWN=yes
  15
  16 . /etc/rc.d/init.d/functions
  17
  18 # avoid keyboard interruption
  19 trap "echo" INT SEGV QUIT TERM
  20 set +e
  21
  22 rc_splash "reboot"
  23
  24 # Kill all processes.
  25 [ "${BASH+bash}" = bash ] && enable kill
  26
  27 runlevel=$1
  28 previous=$2
  29
  30 # Stop blogd before umounting /var
  31 if [ -x /sbin/blogd ]; then
  32         killall -q -QUIT blogd
  33 fi
  34
  35 if [ -e /dev/rtc -o -e /dev/rtc0 ]; then
  36         run_cmd "$(nls 'Syncing hardware clock to system time')" hwclock --systohc
  37 fi
  38
  39 # check for other processes.
  40 # there could be none if all services were terminated properly
  41 # pgrep -g 0 requires procps >= 3.2.6-1.1
  42 # XXX: pgrep is on /usr!
  43 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  44 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  45         run_cmd "Sending all processes the TERM signal" killall5 -15
  46 fi
  47
  48 pids=$(pgrep -g 0 -l -v | grep -v '^1 ')
  49 if [ -n "$pids" ] || [ ! -x /usr/bin/pgrep ]; then
  50         sleep 5
  51         run_cmd "Sending all processes the KILL signal" killall5 -9
  52 fi
  53
  54 # Write to wtmp file before unmounting /var
  55 halt -w
  56
  57 if ! is_yes "$VSERVER"; then
  58         # Turn off swap, then unmount file systems.
  59         run_cmd "Turning off swap" swapoff -a
  60
  61         [ -x /etc/rc.d/rc.acct ] && /etc/rc.d/rc.acct stop
  62
  63         if [ -x /sbin/quotaoff ]; then
  64                 run_cmd "Turning off quotas for local filesystems" /sbin/quotaoff -a
  65         fi
  66
  67         # grab kexec_loaded state before we umount /sys
  68         kexec_loaded=`cat /sys/kernel/kexec_loaded 2>/dev/null`
  69
  70         # Unmount file systems, killing processes if we have to.
  71         sig=-15
  72         retry=3
  73         force=
  74         if [ -z "$UMOUNT_IGNORE" ]; then
  75                 UMOUNT_IGNORE="/"
  76         else
  77                 UMOUNT_IGNORE="/ $UMOUNT_IGNORE"
  78         fi
  79         remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  80                         $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
  81                         && $1 !~ /^(none|\/dev\/root)$/ \
  82                         && $2 !~ ig {print $2}' /proc/mounts)
  83         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  84                 show "Unmounting file systems"; busy
  85                 ERRORS=$(umount -a $force -t noproc 2>&1); rc=$?
  86
  87                 # we might had unmounted /usr, recheck $TPUT availability
  88                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
  89                 # TODO: look ahead the messages?
  90                 if is_yes "$TPUT"; then
  91                         TPUT=
  92                         rc_gettext_init
  93                 fi
  94
  95                 if [ $rc = 0 ]; then
  96                         ok
  97                 else
  98                         fail
  99                         [ -n "$ERRORS" ] && echo "$ERRORS"
 100                 fi
 101
 102                 sleep 2
 103                 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
 104                                 $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|sysfs|securityfs|squashfs)$/ \
 105                                 && $1 !~ /^(none|\/dev\/root)$/ \
 106                                 && $2 !~ ig {print $2}' /proc/mounts)
 107                 [ -z "$remaining" ] && break
 108                 fuser -k -m $sig $remaining > /dev/null
 109                 sleep 5
 110                 retry=$(($retry-1))
 111                 sig=-9
 112                 force="-f"
 113         done
 114
 115         run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 116
 117         if [ -x /sbin/vgchange ]; then
 118                 lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 119                 if [ "$lvmversion" = "2" ]; then
 120                         lvmsysinit="--sysinit"
 121                 else
 122                         lvmsysinit=""
 123                 fi
 124                 /sbin/vgchange -a n $lvmsysinit > /dev/null 2>&1
 125         fi
 126
 127         if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 128                 if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 129                         /sbin/mdadm --stop --scan > /dev/null 2>&1
 130                         rc=$?
 131                 fi
 132         fi
 133
 134         show "Remounting remaining filesystems ro mode"; busy
 135         if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 136                 ok
 137         else
 138                 fail
 139         fi
 140         _rebootwhat="system"
 141 else
 142         _rebootwhat="vserver"
 143 fi
 144
 145 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 146         . /etc/rc.d/init.d/cryptsetup
 147
 148         show "Stopping disk encryption"
 149         halt_crypto && ok || fail
 150 fi
 151
 152 if [ "$runlevel" = "0" ] ; then
 153         show "The $_rebootwhat is halted"; ok
 154         if [ -f /fastboot ]; then
 155                 show "On the next boot fsck will be skipped."; ok
 156         fi
 157
 158         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 159                 . /etc/sysconfig/ups
 160                 if is_yes "$POWEROFF_UPS"; then
 161                         if [ -d /etc/ups.d ]; then
 162                                 for i in /etc/ups.d/*.sh; do
 163                                         [ ! -f $i -o ! -x $i ] && continue
 164                                         $i poweroff
 165                                 done
 166                         fi
 167                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 168                fi
 169         fi
 170         [ "$previous" != "unknown" ] && halt -d -p -f
 171 else
 172         show "Please stand by while rebooting the $_rebootwhat"; ok
 173         if [ -f /fastboot ]; then
 174                 show "On the next boot fsck will be skipped."; ok
 175         fi
 176
 177         if [ -x /sbin/kexec ] && [ "$kexec_loaded" = "1" ]; then
 178                 show "Will now restart with kexec"
 179                 /sbin/kexec -e
 180                 fail
 181         fi
 182
 183         [ "$previous" != "unknown" ] && reboot -d -f
 184 fi