code.delx.au - refind/blob - mkrlconf.sh

   1 #!/bin/bash
   2
   3 # Script to create a refind_linux.conf file for the current Linux
   4 # installation.
   5
   6 # copyright (c) 2012 by Roderick W. Smith
   7 #
   8 # This program is licensed under the terms of the GNU GPL, version 3,
   9 # a copy of which should be distributed with this program.
  10
  11 # Usage:
  12 #
  13 # ./mkrlconf.sh [--force]
  14 #
  15 # Options:
  16 #
  17 #   --force  -- Overwrite an existing file (default is to not replace existing file)
  18
  19 # Revision history:
  20 #
  21 #  0.7.7 -- Fixed bug that caused stray PARTUUID= and line breaks in generated file
  22 #  0.5.1 -- Initial release
  23 #
  24 # Note: mkrlconf.sh version numbers match those of the rEFInd package
  25 # with which they first appeared.
  26
  27 RLConfFile="/boot/refind_linux.conf"
  28
  29 if [[ ! -f $RLConfFile || $1 == "--force" ]] ; then
  30    if [[ -f /etc/default/grub ]] ; then
  31       # We want the default options used by the distribution, stored here....
  32       source /etc/default/grub
  33    fi
  34    RootFS=`df / | grep dev | cut -f 1 -d " "`
  35    StartOfDevname=`echo $RootFS | cut -b 1-7`
  36    if [[ $StartOfDevname == "/dev/sd" || $StartOfDevName == "/dev/hd" ]] ; then
  37       # Identify root filesystem by UUID rather than by device node, if possible
  38       Uuid=`blkid -o export -s UUID $RootFS 2> /dev/null | grep UUID=`
  39       if [[ -n $Uuid ]] ; then
  40          RootFS=$Uuid
  41       fi
  42    fi
  43    DefaultOptions="$GRUB_CMDLINE_LINUX $GRUB_CMDLINE_LINUX_DEFAULT"
  44    echo "\"Boot with standard options\"        \"ro root=$RootFS $DefaultOptions \"" > $RLConfFile
  45    echo "\"Boot to single-user mode\"          \"ro root=$RootFS $DefaultOptions single\"" >> $RLConfFile
  46    echo "\"Boot with minimal options\"         \"ro root=$RootFS\"" >> $RLConfFile
  47 else
  48    echo "Existing $RLConfFile found! Not overwriting!"
  49    echo "To force overwriting, pass the --force option."
  50    echo ""
  51 fi