util-linux-blockdev.init

   1 #!/bin/sh
   2 #
   3 # blockdev              This shell script takes care of starting and stopping blockdev.
   4 #
   5 # chkconfig:    2345 01 99
   6 # description:  blockdev
   7 #
   8 # processname:  blockdev
   9 # config:
  10 # pidfile:
  11
  12 [ -f /etc/sysconfig/blockdev ] || exit 0
  13
  14 blockdevs=$(awk -F= '!/^#/ && !/^$/ {if ($2) print $1}' /etc/sysconfig/blockdev)
  15 if [ -z "$blockdevs" ]; then
  16         case "$1" in
  17         start|stop|restart|force-reload)
  18                 exit 0
  19                 ;;
  20         esac
  21 fi
  22
  23 # Source function library.
  24 . /etc/rc.d/init.d/functions
  25
  26 # Source blockdev configureation.
  27 . /etc/sysconfig/blockdev
  28
  29 start() {
  30         if [ ! -f /var/lock/subsys/blockdev ]; then
  31                 for var in $blockdevs; do
  32                         realdrive=
  33                         drive=${var#BLOCKDEV_}
  34                         if [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  35                                 realdrive="/dev/${drive}"
  36                         elif [ -e "/dev/mapper/${drive}" ]; then
  37                                 realdrive="/dev/mapper/${drive}"
  38                         elif drive=$(echo $drive | tr _ -) && [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  39                                 realdrive="/dev/${drive}"
  40                         elif [ -e "/dev/mapper/${drive}" ]; then
  41                                 realdrive="/dev/mapper/${drive}"
  42                         fi
  43
  44                         if [ -n "$realdrive" ]; then
  45                                 eval PARAMS=\$$var
  46                                 if [ -n "${PARAMS}" ]; then
  47                                         show "Setting parameters for block drive %s (%s)" "$drive" "$PARAMS"
  48                                         busy
  49                                         /sbin/blockdev ${PARAMS} $realdrive
  50                                         ok
  51                                 fi
  52                         fi
  53                 done
  54                 RETVAL=$?
  55                 [ $RETVAL -eq 0 ] && touch /var/lock/subsys/blockdev
  56         else
  57                 msg_already_running blockdev
  58         fi
  59 }
  60
  61 stop() {
  62         # Stop daemons.
  63         if [ ! -f /var/lock/subsys/blockdev ]; then
  64                 msg_not_running blockdev
  65         fi
  66         rm -f /var/lock/subsys/blockdev
  67 }
  68
  69 RETVAL=0
  70 # See how we were called.
  71 case "$1" in
  72   start)
  73         start
  74         ;;
  75   stop)
  76         stop
  77         ;;
  78   restart|force-reload)
  79         stop
  80         start
  81         ;;
  82   status)
  83         status blockdev
  84         exit $?
  85         ;;
  86   *)
  87         msg_usage "$0 {start|stop|restart|force-reload|status}"
  88         exit 3
  89 esac
  90
  91 exit $RETVAL