blockdev.sh

   1 #!/bin/sh
   2
   3 [ -f /etc/sysconfig/blockdev ] || exit 0
   4
   5 blockdevs=$(awk -F= '!/^#/ && !/^$/ {if ($2) print $1}' /etc/sysconfig/blockdev)
   6 [ -n "$blockdevs" ] || exit 0
   7
   8 # Source blockdev configuration.
   9 . /etc/sysconfig/blockdev
  10
  11 for var in $blockdevs; do
  12         realdrive=
  13         drive=${var#BLOCKDEV_}
  14         if [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  15                 realdrive="/dev/${drive}"
  16         elif [ -e "/dev/mapper/${drive}" ]; then
  17                 realdrive="/dev/mapper/${drive}"
  18         elif drive=$(echo $drive | tr _ -) && [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  19                 realdrive="/dev/${drive}"
  20         elif [ -e "/dev/mapper/${drive}" ]; then
  21                 realdrive="/dev/mapper/${drive}"
  22         fi
  23
  24         if [ -n "$realdrive" ]; then
  25                 eval PARAMS=\$$var
  26                 if [ -n "${PARAMS}" ]; then
  27                         /sbin/blockdev ${PARAMS} $realdrive
  28                 fi
  29         fi
  30 done
  31
  32 exit 0