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                         $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|cgroup|cgroup2|sysfs|securityfs|squashfs)$/ \
  81                         && $1 !~ /^(none|\/dev\/root)$/ \
  82                         && $2 !~ ig {print $2}' /proc/mounts)
  83         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  84                 for mnt in $remaining; do
  85                         run_cmd "$(nls 'Umounting file system: %s' $mnt)" umount $force -R $mnt
  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                 done
  95
  96                 show "Unmounting remainging file systems"; busy
  97                 ERRORS=$(umount -a $force -t noproc,nosysfs,notmpfs,nodevpts,nodevtmpfs 2>&1); rc=$?
  98
  99                 # we might had unmounted /usr, recheck $TPUT availability
 100                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
 101                 # TODO: look ahead the messages?
 102                 if is_yes "$TPUT"; then
 103                         TPUT=
 104                         rc_gettext_init
 105                 fi
 106
 107                 if [ $rc = 0 ]; then
 108                         ok
 109                 else
 110                         fail
 111                         if [ -n "$ERRORS" ]; then
 112                                nls "Umount errors:"
 113                                echo "$ERRORS"
 114                         fi
 115                 fi
 116
 117                 sleep 2
 118                 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
 119                                 $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|cgroup|cgroup2|sysfs|securityfs|squashfs)$/ \
 120                                 && $1 !~ /^(none|\/dev\/root)$/ \
 121                                 && $2 !~ ig {print $2}' /proc/mounts)
 122                 [ -z "$remaining" ] && break
 123                 fuser -k -m $sig $remaining > /dev/null
 124                 sleep 5
 125                 retry=$(($retry-1))
 126                 sig=-9
 127                 force="-f"
 128         done
 129
 130         run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 131
 132         if [ -x /sbin/vgchange ]; then
 133                 lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 134                 if [ "$lvmversion" = "2" ]; then
 135                         lvmsysinit="--sysinit --noudevsync"
 136                 else
 137                         lvmsysinit=""
 138                 fi
 139                 /sbin/vgchange -a n $lvmsysinit > /dev/null 2>&1
 140         fi
 141
 142         if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 143                 if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 144                         /sbin/mdadm --stop --scan > /dev/null 2>&1
 145                         rc=$?
 146                 fi
 147         fi
 148
 149         show "Remounting remaining filesystems ro mode"; busy
 150         if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 151                 ok
 152         else
 153                 fail
 154         fi
 155         _rebootwhat="system"
 156 else
 157         _rebootwhat="vserver"
 158 fi
 159
 160 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 161         . /etc/rc.d/init.d/cryptsetup
 162
 163         show "Stopping disk encryption"
 164         halt_crypto && ok || fail
 165 fi
 166
 167 if [ "$runlevel" = "0" ] ; then
 168         show "The $_rebootwhat is halted"; ok
 169         if [ -f /fastboot ]; then
 170                 show "On the next boot fsck will be skipped."; ok
 171         fi
 172
 173         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 174                 . /etc/sysconfig/ups
 175                 if is_yes "$POWEROFF_UPS"; then
 176                         if [ -d /etc/ups.d ]; then
 177                                 for i in /etc/ups.d/*.sh; do
 178                                         [ ! -f $i -o ! -x $i ] && continue
 179                                         $i poweroff
 180                                 done
 181                         fi
 182                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 183                fi
 184         fi
 185         [ "$previous" != "unknown" ] && halt -d -p -f
 186 else
 187         show "Please stand by while rebooting the $_rebootwhat"; ok
 188         if [ -f /fastboot ]; then
 189                 show "On the next boot fsck will be skipped."; ok
 190         fi
 191
 192         if [ -x /sbin/kexec ] && [ "$kexec_loaded" = "1" ]; then
 193                 show "Will now restart with kexec"
 194                 /sbin/kexec -e
 195                 fail
 196         fi
 197
 198         [ "$previous" != "unknown" ] && reboot -d -f
 199 fi