src/util/genliso

   1 #!/bin/bash
   2 #
   3 # Generate a legacy floppy emulation ISO boot image
   4 #
   5 # genliso foo.liso foo.lkrn bar.lkrn ...
   6 #
   7 # The .liso image filename is the first argument followed by
   8 #   a list of .lkrn images  include in .liso image
   9
  10 case $# in
  11 0|1)
  12         echo Usage: $0 foo.liso foo.lkrn ...
  13         exit 1
  14         ;;
  15 esac
  16
  17 case "`mtools -V`" in
  18 Mtools\ version\ 3.9.9*|Mtools\ version\ 3.9.1[0-9]*|Mtools\ version\ 4.*)
  19         ;;
  20 *)
  21         echo Mtools version 3.9.9 or later is required
  22         exit 1
  23         ;;
  24 esac
  25
  26 out=$1
  27 shift
  28
  29 dir=bin/liso.dir
  30 mkdir -p $dir
  31
  32 img=$dir/boot.img
  33 mformat -f 1440 -C -i $img ::
  34
  35 cfg=bin/syslinux.cfg
  36 cat > $cfg <<EOF
  37 # These default options can be changed in the genliso script
  38 SAY gPXE ISO boot image generated by genliso
  39 TIMEOUT 30
  40 EOF
  41
  42 first=
  43 for f
  44 do
  45         if [ ! -r $f ]
  46         then
  47                 echo $f does not exist, skipping 1>&2
  48                 continue
  49         fi
  50         # shorten name for 8.3 filesystem
  51         b=$(basename $f)
  52         g=${b%.lkrn}
  53         g=${g//[^a-z0-9]}
  54         g=${g:0:8}.krn
  55         case "$first" in
  56         "")
  57                 echo DEFAULT $g
  58                 ;;
  59         esac
  60         first=$g
  61         echo LABEL $b
  62         echo "" KERNEL $g
  63         mcopy -m -i $img $f ::$g
  64 done >> $cfg
  65
  66 mcopy -i $img $cfg ::syslinux.cfg
  67
  68 if ! syslinux $img
  69 then
  70         exit 1
  71 fi
  72
  73 mkisofs -o $out -c boot.cat -b boot.img $dir
  74
  75 rm -fr $dir