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 # Turn off swap, then unmount file systems.
  58 run_cmd "Turning off swap" swapoff -a
  59
  60 [ -x /etc/rc.d/rc.acct ] && /etc/rc.d/rc.acct stop
  61
  62 if [ -x /sbin/quotaoff ]; then
  63         run_cmd "Turning off quotas for local filesystems" /sbin/quotaoff -a
  64 fi
  65
  66 # grab kexec_loaded state before we umount /sys
  67 kexec_loaded=`cat /sys/kernel/kexec_loaded 2>/dev/null`
  68
  69 # Unmount file systems, killing processes if we have to.
  70 sig=-15
  71 retry=3
  72 force=
  73 if [ -z "$UMOUNT_IGNORE" ]; then
  74         UMOUNT_IGNORE="/"
  75 else
  76         UMOUNT_IGNORE="/ $UMOUNT_IGNORE"
  77 fi
  78 remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
  79                 $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|cgroup|cgroup2|sysfs|securityfs|efivarfs|squashfs)$/ \
  80                 && $1 !~ /^(none|\/dev\/root)$/ \
  81                 && $2 !~ ig {print $2}' /proc/mounts)
  82 while [ -n "$remaining" -a "$retry" -gt 0 ]; do
  83         for mnt in $remaining; do
  84                 run_cmd "$(nls 'Umounting file system: %s' $mnt)" umount $force -R $mnt
  85
  86                 # we might had unmounted /usr, recheck $TPUT availability
  87                 # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
  88                 # TODO: look ahead the messages?
  89                 if is_yes "$TPUT"; then
  90                     TPUT=
  91                     rc_gettext_init
  92                 fi
  93         done
  94
  95         show "Unmounting remainging file systems"; busy
  96         ERRORS=$(umount -a $force -t noproc,nosysfs,notmpfs,nodevpts,nodevtmpfs 2>&1); rc=$
  97
  98         # we might had unmounted /usr, recheck $TPUT availability
  99         # but well. we need tput only for show() and busy() (ok() and fail() messages are already cached)
 100         # TODO: look ahead the messages?
 101         if is_yes "$TPUT"; then
 102                 TPUT=
 103                 rc_gettext_init
 104         fi
 105
 106         if [ $rc = 0 ]; then
 107                 ok
 108         else
 109                 fail
 110                 if [ -n "$ERRORS" ]; then
 111                        nls "Umount errors:"
 112                        echo "$ERRORS"
 113                 fi
 114         fi
 115
 116         sleep 2
 117         remaining=$(awk -v ig="^($UMOUNT_IGNORE)$" 'BEGIN { gsub(/[\t ]+/, "|", ig); } \
 118                         $3 !~ /^(proc|loopfs|devpts|devtmpfs|shm|iso9660|ramfs|tmpfs|cgroup|cgroup2|sysfs|securityfs|efivarfs|squashfs)$/ \
 119                         && $1 !~ /^(none|\/dev\/root)$/ \
 120                         && $2 !~ ig {print $2}' /proc/mounts)
 121         [ -z "$remaining" ] && break
 122         fuser -k -m $sig $remaining > /dev/null
 123         sleep 5
 124         retry=$(($retry-1))
 125         sig=-9
 126         force="-f"
 127 done
 128
 129 run_cmd "Remounting root filesystem in ro mode" mount -n -o remount,ro /
 130
 131 if [ -x /sbin/vgchange ]; then
 132         lvmversion=$(LC_ALL=C /sbin/vgchange --version 2>/dev/null | awk '/LVM version:/{if ($3 >= 2) print "2"}')
 133         if [ "$lvmversion" = "2" ]; then
 134                 lvmsysinit="--sysinit --noudevsync"
 135         else
 136                 lvmsysinit=""
 137         fi
 138         /sbin/vgchange -a n $lvmsysinit > /dev/null 2>&1
 139 fi
 140
 141 if [ -x /sbin/mdadm -a -f /etc/mdadm.conf ]; then
 142         if grep -qE "^([[:blank:]]|)ARRAY[[:blank:]]" /etc/mdadm.conf 2>/dev/null; then
 143                 /sbin/mdadm --stop --scan > /dev/null 2>&1
 144                 rc=$?
 145         fi
 146 fi
 147
 148 show "Remounting remaining filesystems ro mode"; busy
 149 if mount | awk '/ext2|ext3|reiserfs|xfs|jfs/ { print $3 }' | while read line; do mount -n -o ro,remount $line; done; then
 150         ok
 151 else
 152         fail
 153 fi
 154 _rebootwhat="system"
 155
 156 if [ -f /etc/crypttab ] && ! is_empty_file /etc/crypttab; then
 157         . /etc/rc.d/init.d/cryptsetup
 158
 159         show "Stopping disk encryption"
 160         halt_crypto && ok || fail
 161 fi
 162
 163 if [ "$runlevel" = "0" ] ; then
 164         show "The $_rebootwhat is halted"; ok
 165         if [ -f /fastboot ]; then
 166                 show "On the next boot fsck will be skipped."; ok
 167         fi
 168
 169         if [ -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
 170                 . /etc/sysconfig/ups
 171                 if is_yes "$POWEROFF_UPS"; then
 172                         if [ -d /etc/ups.d ]; then
 173                                 for i in /etc/ups.d/*.sh; do
 174                                         [ ! -f $i -o ! -x $i ] && continue
 175                                         $i poweroff
 176                                 done
 177                         fi
 178                        [ -x /sbin/poweroff-ups ] && /sbin/poweroff-ups
 179                fi
 180         fi
 181         [ "$previous" != "unknown" ] && halt -d -p -f
 182 else
 183         show "Please stand by while rebooting the $_rebootwhat"; ok
 184         if [ -f /fastboot ]; then
 185                 show "On the next boot fsck will be skipped."; ok
 186         fi
 187
 188         if [ -x /sbin/kexec ] && [ "$kexec_loaded" = "1" ]; then
 189                 show "Will now restart with kexec"
 190                 /sbin/kexec -e
 191                 fail
 192         fi
 193
 194         [ "$previous" != "unknown" ] && reboot -d -f
 195 fi