release/riscv/mkisoimages.sh

   1 #!/bin/sh
   2 #
   3 #
   4 # This script is used by release/Makefile to build the (optional) ISO images
   5 # for a FreeBSD release.  It is considered architecture dependent since each
   6 # platform has a slightly unique way of making bootable CDs. This script is
   7 # also allowed to generate any number of images since that is more of
   8 # publishing decision than anything else.
   9 #
  10 # Usage:
  11 #
  12 # mkisoimages.sh [-b] image-label image-name base-bits-dir [extra-bits-dir]
  13 #
  14 # Where -b is passed if the ISO image should be made "bootable" by
  15 # whatever standards this architecture supports (may be unsupported),
  16 # image-label is the ISO image label, image-name is the filename of the
  17 # resulting ISO image, base-bits-dir contains the image contents and
  18 # extra-bits-dir, if provided, contains additional files to be merged
  19 # into base-bits-dir as part of making the image.
  20
  21 set -e
  22
  23 scriptdir=$(dirname $(realpath $0))
  24 . ${scriptdir}/../../tools/boot/install-boot.sh
  25
  26 if [ -z $ETDUMP ]; then
  27         ETDUMP=etdump
  28 fi
  29
  30 if [ -z $MAKEFS ]; then
  31         MAKEFS=makefs
  32 fi
  33
  34 if [ -z $MKIMG ]; then
  35         MKIMG=mkimg
  36 fi
  37
  38 if [ "$1" = "-b" ]; then
  39         MAKEFSARG="$4"
  40 else
  41         MAKEFSARG="$3"
  42 fi
  43
  44 if [ -f ${MAKEFSARG} ]; then
  45         BASEBITSDIR=`dirname ${MAKEFSARG}`
  46         METALOG=${MAKEFSARG}
  47 elif [ -d ${MAKEFSARG} ]; then
  48         BASEBITSDIR=${MAKEFSARG}
  49         METALOG=
  50 else
  51         echo "${MAKEFSARG} must exist"
  52         exit 1
  53 fi
  54
  55 if [ "$1" = "-b" ]; then
  56         # Make an EFI system partition.
  57         espfilename=$(mktemp /tmp/efiboot.XXXXXX)
  58         # ESP file size in KB.
  59         espsize="2048"
  60         make_esp_file ${espfilename} ${espsize} ${BASEBITSDIR}/boot/loader.efi
  61
  62         bootable="-o bootimage=efi;${espfilename} -o no-emul-boot -o platformid=efi"
  63
  64         shift
  65 else
  66         bootable=""
  67 fi
  68
  69 if [ $# -lt 3 ]; then
  70         echo "Usage: $0 [-b] image-label image-name base-bits-dir [extra-bits-dir]"
  71         exit 1
  72 fi
  73
  74 LABEL=`echo "$1" | tr '[:lower:]' '[:upper:]'`; shift
  75 NAME="$1"; shift
  76 # MAKEFSARG extracted already
  77 shift
  78
  79 publisher="The FreeBSD Project.  https://www.FreeBSD.org/"
  80 echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > "$BASEBITSDIR/etc/fstab"
  81 if [ -n "${METALOG}" ]; then
  82         metalogfilename=$(mktemp /tmp/metalog.XXXXXX)
  83         cat ${METALOG} > ${metalogfilename}
  84         echo "./etc/fstab type=file uname=root gname=wheel mode=0644" >> ${metalogfilename}
  85         MAKEFSARG=${metalogfilename}
  86 fi
  87 $MAKEFS -D -N ${BASEBITSDIR}/etc -t cd9660 $bootable -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME" "$MAKEFSARG" "$@"
  88 rm -f "$BASEBITSDIR/etc/fstab"
  89 rm -f ${espfilename}
  90 if [ -n "${METALOG}" ]; then
  91         rm ${metalogfilename}
  92 fi
  93
  94 if [ "$bootable" != "" ]; then
  95         # Look for the EFI System Partition image we dropped in the ISO image.
  96         for entry in `$ETDUMP --format shell $NAME`; do
  97                 eval $entry
  98                 # XXX: etdump(8) returns "default" for the initial entry
  99                 if [ "$et_platform" = "default" ]; then
 100                         espstart=`expr $et_lba \* 2048`
 101                         espsize=`expr $et_sectors \* 512`
 102                         espparam="-p efi::$espsize:$espstart"
 103                         break
 104                 fi
 105         done
 106
 107         # Create a GPT image containing the EFI partition.
 108         efifilename=$(mktemp /tmp/efi.img.XXXXXX)
 109         if [ "$(uname -s)" = "Linux" ]; then
 110                 imgsize=`stat -c %s "$NAME"`
 111         else
 112                 imgsize=`stat -f %z "$NAME"`
 113         fi
 114         $MKIMG -s gpt \
 115             --capacity $imgsize \
 116             $espparam \
 117             -o $efifilename
 118
 119         # Drop the GPT into the System Area of the ISO.
 120         dd if=$efifilename of="$NAME" bs=32k count=1 conv=notrunc
 121         rm -f $efifilename
 122 fi