qemu/roms/ipxe/src/util/geniso

   1 #!/bin/bash
   2 #
   3 # Generate a isolinux ISO boot image
   4
   5 function help() {
   6         echo "usage: ${0} [OPTIONS] foo.lkrn [bar.lkrn,...]"
   7         echo
   8         echo "where OPTIONS are:"
   9         echo " -h       show this help"
  10         echo " -l       build legacy image with floppy emulation"
  11         echo " -o FILE  save iso image to file"
  12 }
  13
  14 LEGACY=0
  15 FIRST=""
  16
  17 while getopts "hlo:" opt; do
  18         case ${opt} in
  19                 h)
  20                         help
  21                         exit 0
  22                         ;;
  23                 l)
  24                         LEGACY=1
  25                         ;;
  26                 o)
  27                         OUT="${OPTARG}"
  28                         ;;
  29         esac
  30 done
  31
  32 shift $((OPTIND - 1))
  33
  34 if [ -z "${OUT}" ]; then
  35         echo "${0}: no output file given" >&2
  36         help
  37         exit 1
  38 fi
  39
  40 # There should either be mkisofs or the compatible genisoimage program
  41 for command in genisoimage mkisofs; do
  42         if ${command} --version >/dev/null 2>/dev/null; then
  43                 mkisofs=(${command})
  44                 break
  45         fi
  46 done
  47
  48 if [ -z "${mkisofs}" ]; then
  49         echo "${0}: mkisofs or genisoimage not found, please install or set PATH" >&2
  50         exit 1
  51 fi
  52
  53 dir=$(mktemp -d bin/iso.dir.XXXXXX)
  54 cfg=${dir}/isolinux.cfg
  55
  56 mkisofs+=(-quiet -l -volid "iPXE" -preparer "iPXE build system"
  57         -appid "iPXE ${VERSION} - Open Source Network Boot Firmware"
  58         -publisher "http://ipxe.org/" -c boot.cat)
  59
  60 # generate the config
  61 cat > ${cfg} <<EOF
  62 # These default options can be changed in the geniso script
  63 SAY iPXE ISO boot image
  64 TIMEOUT 30
  65 EOF
  66 for f; do
  67         if [ ! -r ${f} ]; then
  68                 echo "${f} does not exist, skipping" >&2
  69                 continue
  70         fi
  71         b=$(basename ${f})
  72         g=${b%.lkrn}
  73         g=${g//[^a-z0-9]}
  74         g=${g:0:8}.krn
  75         case "${FIRST}" in
  76                 "")
  77                         echo "DEFAULT ${b}"
  78                         FIRST=${g}
  79                         ;;
  80         esac
  81         echo "LABEL ${b}"
  82         echo " KERNEL ${g}"
  83         cp ${f} ${dir}/${g}
  84 done >> ${cfg}
  85
  86 case "${LEGACY}" in
  87         1)
  88                 # check for mtools
  89                 case "$(mtools -V)" in
  90                         Mtools\ version\ 3.9.9*|Mtools\ version\ 3.9.1[0-9]*|[mM]tools\ *\ [4-9].*)
  91                                 ;;
  92                         *)
  93                                 echo "Mtools version 3.9.9 or later is required" >&2
  94                                 exit 1
  95                                 ;;
  96                 esac
  97
  98                 # generate floppy image
  99                 img=${dir}/boot.img
 100                 mformat -f 1440 -C -i ${img} ::
 101
 102                 # copy lkrn file to floppy image
 103                 for f in ${dir}/*.krn; do
 104                         mcopy -m -i ${img} ${f} ::$(basename ${g})
 105                         rm -f ${f}
 106                 done
 107
 108                 # copy config file to floppy image
 109                 mcopy -i ${img} ${cfg} ::syslinux.cfg
 110                 rm -f ${cfg}
 111
 112                 # write syslinux bootloader to floppy image
 113                 if ! syslinux ${img}; then
 114                         echo "${0}: failed writing syslinux to floppy image ${img}" >&2
 115                         exit 1
 116                 fi
 117
 118                 # generate the iso image
 119                 "${mkisofs[@]}" -b boot.img -output ${OUT} ${dir}
 120                 ;;
 121         0)
 122                 # copy isolinux bootloader
 123                 cp ${ISOLINUX_BIN} ${dir}
 124
 125                 # syslinux 6.x needs a file called ldlinux.c32
 126                 LDLINUX_C32=$(dirname ${ISOLINUX_BIN})/ldlinux.c32
 127                 if [ -s ${LDLINUX_C32} ]; then
 128                         cp ${LDLINUX_C32} ${dir}
 129                 fi
 130
 131                 # generate the iso image
 132                 "${mkisofs[@]}" -b isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -output ${OUT} ${dir}
 133
 134                 # isohybrid will be used if available
 135                 if isohybrid --version >/dev/null 2>/dev/null; then
 136                         isohybrid ${OUT} >/dev/null
 137                 fi
 138                 ;;
 139 esac
 140
 141 # clean up temporary dir
 142 rm -fr ${dir}