etc/init.d/zfs-mount.in

   1 #!@DEFAULT_INIT_SHELL@
   2 # shellcheck disable=SC2154
   3 #
   4 # zfs-mount     This script will mount/umount the zfs filesystems.
   5 #
   6 # chkconfig:    2345 06 99
   7 # description:  This script will mount/umount the zfs filesystems during
   8 #               system boot/shutdown. Configuration of which filesystems
   9 #               should be mounted is handled by the zfs 'mountpoint' and
  10 #               'canmount' properties. See the zfs(8) man page for details.
  11 #               It is also responsible for all userspace zfs services.
  12 # probe: true
  13 #
  14 ### BEGIN INIT INFO
  15 # Provides:          zfs-mount
  16 # Required-Start:    zfs-import
  17 # Required-Stop:     $local_fs zfs-import
  18 # Default-Start:     S
  19 # Default-Stop:      0 1 6
  20 # X-Start-Before:    mountall
  21 # X-Stop-After:      zfs-zed
  22 # Short-Description: Mount ZFS filesystems and volumes
  23 # Description: Run the `zfs mount -a` or `zfs umount -a` commands.
  24 ### END INIT INFO
  25 #
  26 # Released under the 2-clause BSD license.
  27 #
  28 # This script is based on debian/zfsutils.zfs.init from the
  29 # Debian GNU/kFreeBSD zfsutils 8.1-3 package, written by Aurelien Jarno.
  30
  31 # Source the common init script
  32 . @sysconfdir@/zfs/zfs-functions
  33
  34 # ----------------------------------------------------
  35
  36 chkroot() {
  37         while read -r _ mp _; do
  38                 if [ "$mp" = "/" ]; then
  39                         return 0
  40                 fi
  41         done < /proc/self/mounts
  42
  43         return 1
  44 }
  45
  46 do_depend()
  47 {
  48         # Try to allow people to mix and match fstab with ZFS in a way that makes sense.
  49         if [ "$(mountinfo -s /)" = 'zfs' ]
  50         then
  51                 before localmount
  52         else
  53                 after localmount
  54         fi
  55
  56         # bootmisc will log to /var which may be a different zfs than root.
  57         before bootmisc logger
  58
  59         after zfs-import sysfs
  60         use mtab
  61         keyword -lxc -openvz -prefix -vserver
  62 }
  63
  64 # Mount all datasets/filesystems
  65 do_mount()
  66 {
  67         local verbose overlay
  68
  69         check_boolean "$VERBOSE_MOUNT" && verbose=v
  70         check_boolean "$DO_OVERLAY_MOUNTS" && overlay=O
  71
  72         zfs_action "Mounting ZFS filesystem(s)" \
  73             "$ZFS" mount "-a$verbose$overlay" "$MOUNT_EXTRA_OPTIONS"
  74
  75         return 0
  76 }
  77
  78 # Unmount all filesystems
  79 do_unmount()
  80 {
  81         # This shouldn't really be necessary, as long as one can get
  82         # zfs-import to run sufficiently late in the shutdown/reboot process
  83         # - after unmounting local filesystems. This is just here in case/if
  84         # this isn't possible.
  85         zfs_action "Unmounting ZFS filesystems" "$ZFS" unmount -a
  86
  87         return 0
  88 }
  89
  90 do_start()
  91 {
  92         check_boolean "$ZFS_MOUNT" || exit 0
  93
  94         check_module_loaded "zfs" || exit 0
  95
  96         # Ensure / exists in /proc/self/mounts.
  97         # This should be handled by rc.sysinit but lets be paranoid.
  98         if ! chkroot
  99         then
 100                 mount -f /
 101         fi
 102
 103         do_mount
 104 }
 105
 106 do_stop()
 107 {
 108         check_boolean "$ZFS_UNMOUNT" || exit 0
 109
 110         check_module_loaded "zfs" || exit 0
 111
 112         do_unmount
 113 }
 114
 115 # ----------------------------------------------------
 116
 117 if [ ! -e /sbin/openrc-run ]
 118 then
 119         case "$1" in
 120                 start)
 121                         do_start
 122                         ;;
 123                 stop)
 124                         do_stop
 125                         ;;
 126                 force-reload|condrestart|reload|restart|status)
 127                         # no-op
 128                         ;;
 129                 *)
 130                         [ -n "$1" ] && echo "Error: Unknown command $1."
 131                         echo "Usage: $0 {start|stop}"
 132                         exit 3
 133                         ;;
 134         esac
 135
 136         exit $?
 137 else
 138         # Create wrapper functions since Gentoo don't use the case part.
 139         depend() { do_depend; }
 140         start() { do_start; }
 141         stop() { do_stop; }
 142 fi