mod-blkid.sh

   1 #!/bin/sh
   2 RCSID='$Revision$ $Date::                            $'
   3
   4 # geninitrd mod: blkid
   5 USE_BLKID=${USE_BLKID:-yes}
   6
   7 # true if we should parse UUID= or LABEL= for root parameter
   8
   9 # setup geninitrd module
  10 # @access       public
  11 setup_mod_blkid() {
  12         blkid=$(find_tool $initrd_dir/blkid /sbin/initrd-blkid)
  13
  14         if [ ! -x "$blkid" ]; then
  15                 USE_BLKID=no
  16         fi
  17 }
  18
  19 # generate initrd fragment
  20 # @access       public
  21 initrd_gen_blkid() {
  22         if ! is_yes "$USE_BLKID"; then
  23                 return
  24         fi
  25         debug "Adding BLKID support to initrd"
  26
  27         inst_exec $blkid /bin/blkid
  28         initrd_gen_devices
  29         add_linuxrc <<-'EOF'
  30                 # if built with blkid change ROOT=LABEL=something into ROOT=/dev/somethingelse -
  31                 # parsed by blkid
  32                 if [ "${ROOT##LABEL=}" != "${ROOT}" -o "${ROOT##UUID=}" != "${ROOT}" ]; then
  33                         ROOT="$(/bin/blkid -t $ROOT -o device -l)"
  34                 fi
  35         EOF
  36 }