#!/bin/sh

### BEGIN INIT INFO
# Provides:          local-mountraid
# Required-Start:    $local_fs $syslog mdadm
# Required-Stop:     $local_fs $syslog mdadm
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Late imsm raid mount
# Description:       Mount the imsm raid separately to work around LP #1320402
### END INIT INFO

# Put in /etc/init.d and fix symlinks with:
# > sudo update-rc.d -n local-mountraid defaults

set -eu

MDDEV=/dev/md/vol0
MOUNTS="/more /d /snapshots"

MDADM=/sbin/mdadm
MOUNT=/bin/mount
UMOUNT=/bin/umount

case "${1:-}" in
  start)
    $MDADM --assemble $MDDEV || :
    # Apparently mdadm --assemble doesn't wait for the device to become
    # available, so sleep for a bit.
    sleep 5
    for m in $MOUNTS; do
      $MOUNT $m
    done
    ;;
  stop)
    # Unmount filesystems lazily and keep trying mdadm --stop for a minute
    # to be somewhat robust to unmount problems.
    for m in $(echo $MOUNTS | /usr/bin/tac -s ' '); do
      $UMOUNT -f -l $m || :
    done
    retries=12
    while ! $MDADM --stop $MDDEV; do
      retries=`expr $retries - 1`
      test $retries -le 0 && break
      echo "mdadm failed to stop $MDDEV - retrying" >&2
      sleep 5
    done
    $MDADM --wait-clean $MDDEV
    ;;
  status|reload) 
    :
    ;;
  restart|force-reload)
    ${0} stop
    ${0} start
    ;;
  *)
    echo "Usage: ${0:-} {start|stop|status|restart|reload|force-reload}" >&2
    exit 1
    ;;
esac

exit 0