debian/src/initscripts/etc/init.d/umountfs

   1 #! /bin/sh
   2 ### BEGIN INIT INFO
   3 # Provides:          umountfs
   4 # Required-Start:
   5 # Required-Stop:     umountroot
   6 # Default-Start:
   7 # Default-Stop:      0 6
   8 # Short-Description: Turn off swap and unmount all local file systems.
   9 # Description:
  10 ### END INIT INFO
  11
  12 PATH=/sbin:/usr/sbin:/bin:/usr/bin
  13 . /lib/init/vars.sh
  14
  15 . /lib/lsb/init-functions
  16
  17 umask 022
  18
  19 do_stop () {
  20         exec 9<&0 </proc/mounts
  21
  22         REG_MTPTS=""
  23         TMPFS_MTPTS=""
  24         while read -r DEV MTPT FSTYPE REST
  25         do
  26                 case "$MTPT" in
  27                   /|/proc|/dev|/.dev|/dev/pts|/dev/shm|/dev/.static/dev|/proc/*|/sys|/lib/init/rw)
  28                         continue
  29                         ;;
  30                   /var/run)
  31                         if [ yes = "$RAMRUN" ] ; then
  32                                 continue
  33                         fi
  34                         ;;
  35                   /var/lock)
  36                         if [ yes = "$RAMLOCK" ] ; then
  37                                 continue
  38                         fi
  39                         ;;
  40                 esac
  41                 case "$FSTYPE" in
  42                   proc|procfs|linprocfs|devfs|sysfs|usbfs|usbdevfs|devpts)
  43                         continue
  44                         ;;
  45                   tmpfs)
  46                         TMPFS_MTPTS="$MTPT $TMPFS_MTPTS"
  47                         ;;
  48                   *)
  49                         REG_MTPTS="$MTPT $REG_MTPTS"
  50                         ;;
  51                 esac
  52         done
  53
  54         exec 0<&9 9<&-
  55
  56         #
  57         # Make sure tmpfs file systems are umounted before turning off
  58         # swap, to avoid running out of memory if the tmpfs filesystems
  59         # use a lot of space.
  60         #
  61         if [ "$TMPFS_MTPTS" ]
  62         then
  63                 if [ "$VERBOSE" = no ]
  64                 then
  65                         log_action_begin_msg "Unmounting temporary filesystems"
  66                         fstab-decode umount $TMPFS_MTPTS
  67                         log_action_end_msg $?
  68                 else
  69                         log_daemon_msg "Will now unmount temporary filesystems"
  70                         fstab-decode umount -v $TMPFS_MTPTS
  71                         log_end_msg $?
  72                 fi
  73         fi
  74
  75         #
  76         # Deactivate swap
  77         #
  78         if [ "$VERBOSE" = no ]
  79         then
  80                 log_action_begin_msg "Deactivating swap"
  81                 swapoff -a >/dev/null
  82                 log_action_end_msg $?
  83         else
  84                 log_daemon_msg "Will now deactivate swap"
  85                 swapoff -a -v
  86                 log_end_msg $?
  87         fi
  88
  89         #
  90         # Unmount local filesystems
  91         #
  92         if [ "$REG_MTPTS" ]
  93         then
  94                 if [ "$VERBOSE" = no ]
  95                 then
  96                         log_action_begin_msg "Unmounting local filesystems"
  97                         fstab-decode umount -f -r -d $REG_MTPTS
  98                         log_action_end_msg $?
  99                 else
 100                         log_daemon_msg "Will now unmount local filesystems"
 101                         fstab-decode umount -f -v -r -d $REG_MTPTS
 102                         log_end_msg $?
 103                 fi
 104         fi
 105 }
 106
 107 case "$1" in
 108   start)
 109         # No-op
 110         ;;
 111   restart|reload|force-reload)
 112         echo "Error: argument '$1' not supported" >&2
 113         exit 3
 114         ;;
 115   stop)
 116         do_stop
 117         ;;
 118   *)
 119         echo "Usage: $0 start|stop" >&2
 120         exit 3
 121         ;;
 122 esac
 123
 124 :