gdium_bios_pad.sh

   1 #!/bin/bash
   2 # Copyright (C) 2009 yajin (yajin@vm-kernel.org)
   3 #
   4 # pad the BIOS image of gdium to 512K bytes
   5 #
   6 #
   7 # gdium_bios_pad.sh  <original_bios_image>   <output_bios_image>  <output_bios_size>
   8 #
   9 #
  10
  11 if [ ! -r "$1" ]; then
  12         echo "Usage: $0 <original_bios_image>   <output_bios_image>  <output_bios_size>"
  13         exit -1
  14 fi
  15
  16 original_bios_image=$1
  17 bios_image_name=$2
  18 bios_image_len=$3
  19 bios_kbs=$[$bios_image_len/1024]
  20
  21
  22 if [ -e "$2" ]; then
  23   echo $bios_image_name" exist.Delete it first!"
  24   rm -rf $bios_image_name
  25 fi
  26
  27 echo -en \\0377\\0377\\0377\\0377\\0377\\0377\\0377\\0377 > .8b
  28 cat .8b .8b >.16b
  29 cat .16b .16b >.32b
  30 cat .32b .32b .32b .32b >.128b
  31 cat .128b .128b .128b .128b >.512b
  32 cat .512b .512b >.1024b
  33
  34 i=0
  35 while  [ $i -lt $bios_kbs  ]
  36 do
  37   cat .1024b>>$bios_image_name
  38   i=$[$i + 1]
  39 done
  40
  41 dd if=$original_bios_image of=$bios_image_name  conv=notrunc seek=0
  42 rm .8b .16b .32b .128b .512b .1024b