release/riscv/mkisoimages.sh

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