freebsd-skq/release/amd64/mkisoimages.sh
Benno Rice 6ea2984738 Allow etdump, makefs and mkimg to be overridden.
Recent changes to makefs and mkimg have led to situations where the
disconnect between this script and the versions installed on the host cause
failures. Provide a way to work around this that doesn't require the
installation of new versions to the host system if that's not desired.

With this change mkisoimages.sh will honour the $ETDUMP, $MAKEFS and $MKIMG
environment variables but fall back to the previous behaviour of finding them
within $PATH.

Reviewed by:	gjb
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D15181
2018-04-25 18:47:52 +00:00

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#!/bin/sh
#
# Module: mkisoimages.sh
# Author: Jordan K Hubbard
# Date: 22 June 2001
#
# $FreeBSD$
#
# 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.
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
# This is highly x86-centric and will be used directly below.
bootable="-o bootimage=i386;$4/boot/cdboot -o no-emul-boot"
# Make EFI system partition (should be done with makefs in the future)
dd if=/dev/zero of=efiboot.img bs=4k count=200
device=`mdconfig -a -t vnode -f efiboot.img`
newfs_msdos -F 12 -m 0xf8 /dev/$device
mkdir efi
mount -t msdosfs /dev/$device efi
mkdir -p efi/efi/boot
cp "$4/boot/loader.efi" efi/efi/boot/bootx64.efi
umount efi
rmdir efi
mdconfig -d -u $device
bootable="$bootable -o bootimage=i386;efiboot.img -o no-emul-boot -o platformid=efi"
shift
else
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" > "$1/etc/fstab"
$MAKEFS -t cd9660 $bootable -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME" "$@"
rm -f "$1/etc/fstab"
rm -f efiboot.img
if [ "$bootable" != "" ]; then
# Look for the EFI System Partition image we dropped in the ISO image.
for entry in `$ETDUMP --format shell $NAME`; do
eval $entry
if [ "$et_platform" = "efi" ]; 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 partitions we need for hybrid boot.
imgsize=`stat -f %z $NAME`
$MKIMG -s gpt \
--capacity $imgsize \
-b $4/boot/pmbr \
$espparam \
-p freebsd-boot:=$4/boot/isoboot \
-o hybrid.img
# Drop the PMBR, GPT, and boot code into the System Area of the ISO.
dd if=hybrid.img of=$NAME bs=32k count=1 conv=notrunc
rm -f hybrid.img
fi