src/util/genliso

   1 #!/bin/bash
   2 #
   3 # Generate a legacy floppy emulation ISO boot image
   4 #
   5 # genliso foo.liso foo.lkrn
   6 #
   7 # the ISO image is the first argument so that a list of .lkrn images
   8 # to include can be specified
   9 #
  10 case $0 in
  11 *genliso)
  12         ;;
  13 *genfdimg)
  14         genfdimg=1
  15         ;;
  16 esac
  17 case $# in
  18 0|1)
  19         echo Usage: $0 foo.liso foo.lkrn ...
  20         exit 1
  21         ;;
  22 esac
  23 case "`mtools -V`" in
  24 Mtools\ version\ 3.9.9*|Mtools\ version\ 3.9.1[0-9]*|Mtools\ version\ 4.*)
  25         ;;
  26 *)
  27         echo Mtools version 3.9.9 or later is required
  28         exit 1
  29         ;;
  30 esac
  31 out=$1
  32 shift
  33 dir=bin/liso.dir
  34 mkdir -p $dir
  35 case "$genfdimg" in
  36 1)
  37         img=$out
  38         ;;
  39 *)
  40         img=$dir/boot.img
  41         ;;
  42 esac
  43 mformat -f 1440 -C -i $img ::
  44 cfg=bin/syslinux.cfg
  45 cat > $cfg <<EOF
  46 # These default options can be changed in the genliso script
  47 SAY Etherboot ISO boot image generated by genliso
  48 TIMEOUT 30
  49 EOF
  50 first=
  51 for f
  52 do
  53         if [ ! -r $f ]
  54         then
  55                 echo $f does not exist, skipping 1>&2
  56                 continue
  57         fi
  58         # shorten name for 8.3 filesystem
  59         b=$(basename $f)
  60         g=${b%.lkrn}
  61         g=${g//[^a-z0-9]}
  62         g=${g:0:8}.krn
  63         case "$first" in
  64         "")
  65                 echo DEFAULT $g
  66                 ;;
  67         esac
  68         first=$g
  69         echo LABEL $b
  70         echo "" KERNEL $g
  71         mcopy -m -i $img $f ::$g
  72 done >> $cfg
  73 mcopy -i $img $cfg ::syslinux.cfg
  74 if ! syslinux $img
  75 then
  76         exit 1
  77 fi
  78 case "$genfdimg" in
  79 1)
  80         ;;
  81 *)
  82         mkisofs -o $out -c boot.cat -b boot.img $dir
  83         ;;
  84 esac
  85 rm -fr $dir