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| -rw-r--r-- | release/arm64/mkisoimages.sh | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/release/arm64/mkisoimages.sh b/release/arm64/mkisoimages.sh new file mode 100644 index 000000000000..67edfb53f357 --- /dev/null +++ b/release/arm64/mkisoimages.sh @@ -0,0 +1,93 @@ +#!/bin/sh +# +# $FreeBSD$ +# +# This script is used by release/Makefile to build the (optional) ISO images +# for a FreeBSD release. It is considered architecture dependent since each +# platform has a slightly unique way of making bootable CDs. This script is +# also allowed to generate any number of images since that is more of +# publishing decision than anything else. +# +# Usage: +# +# mkisoimages.sh [-b] image-label image-name base-bits-dir [extra-bits-dir] +# +# Where -b is passed if the ISO image should be made "bootable" by +# whatever standards this architecture supports (may be unsupported), +# image-label is the ISO image label, image-name is the filename of the +# resulting ISO image, base-bits-dir contains the image contents and +# extra-bits-dir, if provided, contains additional files to be merged +# into base-bits-dir as part of making the image. + +set -e + +scriptdir=$(dirname $(realpath $0)) +. ${scriptdir}/../../tools/boot/install-boot.sh + +if [ -z $ETDUMP ]; then + ETDUMP=etdump +fi + +if [ -z $MAKEFS ]; then + MAKEFS=makefs +fi + +if [ -z $MKIMG ]; then + MKIMG=mkimg +fi + +if [ "$1" = "-b" ]; then + BASEBITSDIR="$4" + + # Make an EFI system partition. + # The ISO file is a special case, in that it only has a maximum of + # 800 KB available for the boot code. So make an 800 KB ESP + espfilename=$(mktemp /tmp/efiboot.XXXXXX) + make_esp_file ${espfilename} 800 ${BASEBITSDIR}/boot/loader.efi + + bootable="-o bootimage=efi;${espfilename} -o no-emul-boot -o platformid=efi" + + shift +else + BASEBITSDIR="$3" + bootable="" +fi + +if [ $# -lt 3 ]; then + echo "Usage: $0 [-b] image-label image-name base-bits-dir [extra-bits-dir]" + exit 1 +fi + +LABEL=`echo "$1" | tr '[:lower:]' '[:upper:]'`; shift +NAME="$1"; shift + +publisher="The FreeBSD Project. https://www.FreeBSD.org/" +echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > "$BASEBITSDIR/etc/fstab" +$MAKEFS -t cd9660 $bootable -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME" "$@" +rm -f "$BASEBITSDIR/etc/fstab" +rm -f ${espfilename} + +if [ "$bootable" != "" ]; then + # Look for the EFI System Partition image we dropped in the ISO image. + for entry in `$ETDUMP --format shell $NAME`; do + eval $entry + # XXX: etdump(8) returns "default" for the initial entry + if [ "$et_platform" = "default" ]; then + espstart=`expr $et_lba \* 2048` + espsize=`expr $et_sectors \* 512` + espparam="-p efi::$espsize:$espstart" + break + fi + done + + # Create a GPT image containing the EFI partition. + imgsize=`stat -f %z "$NAME"` + $MKIMG -s gpt \ + --capacity $imgsize \ + $espparam \ + -o efi.img + + # Drop the GPT into the System Area of the ISO. + dd if=efi.img of="$NAME" bs=32k count=1 conv=notrunc + rm -f efi.img +fi |