contrib/dracut/90zfs/mount-zfs.sh.in

   1 #!/bin/sh
   2
   3 . /lib/dracut-zfs-lib.sh
   4
   5 ZFS_DATASET=""
   6 ZFS_POOL=""
   7
   8 case "${root}" in
   9         zfs:*) ;;
  10         *) return ;;
  11 esac
  12
  13 # If sysroot.mount exists, the initial RAM disk configured
  14 # it to mount ZFS on root.  In that case, we bail early.
  15 loadstate="$(systemctl --system --show -p LoadState sysroot.mount || true)"
  16 if [ "${loadstate}" = "LoadState=not-found" -o "${loadstate}" = "" ] ; then
  17         info "ZFS: sysroot.mount absent, mounting root with mount-zfs.sh"
  18 else
  19         info "ZFS: sysroot.mount present, delegating root mount to it"
  20         return
  21 fi
  22
  23 # Delay until all required block devices are present.
  24 udevadm settle
  25
  26 if [ "${root}" = "zfs:AUTO" ] ; then
  27         ZFS_DATASET="$(find_bootfs)"
  28         if [ $? -ne 0 ] ; then
  29                 zpool import -N -a ${ZPOOL_IMPORT_OPTS}
  30                 ZFS_DATASET="$(find_bootfs)"
  31                 if [ $? -ne 0 ] ; then
  32                         warn "ZFS: No bootfs attribute found in importable pools."
  33                         export_all || export_all "-f"
  34
  35                         rootok=0
  36                         return 1
  37                 fi
  38         fi
  39         info "ZFS: Using ${ZFS_DATASET} as root."
  40 fi
  41
  42 ZFS_DATASET="${ZFS_DATASET:-${root#zfs:}}"
  43 ZFS_POOL="${ZFS_DATASET%%/*}"
  44
  45 if import_pool "${ZFS_POOL}" ; then
  46         info "ZFS: Mounting dataset ${ZFS_DATASET}..."
  47         if mount_dataset "${ZFS_DATASET}" ; then
  48                 ROOTFS_MOUNTED=yes
  49                 return 0
  50         fi
  51 fi
  52
  53 rootok=0
  54 need_shutdown