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#!/bin/sh
#
# Copyright (c) 2022 Christer Edwards <christer.edwards@gmail.com>
# Copyright (c) 2021 Emmanuel Vadot <manu@FreeBSD.org>
# Copyright (c) 2015 Baptiste Daroussin <bapt@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
hybridiso_check()
{
# Limitation on isos
case "${IMAGENAME}" in
''|*[!A-Za-z0-9]*)
err 1 "Name can only contain alphanumeric characters"
;;
esac
[ -f "${mnt}/boot/kernel/kernel" ] || \
err 1 "The ${MEDIATYPE} media type requires a jail with a kernel"
}
hybridiso_prepare()
{
}
hybridiso_build()
{
imageupper=$(echo ${IMAGENAME} | tr '[:lower:]' '[:upper:]')
cat >> ${WRKDIR}/world/etc/fstab <<-EOF
/dev/iso9660/${imageupper} / cd9660 ro 0 0
tmpfs /tmp tmpfs rw,mode=1777 0 0
EOF
do_clone -r ${WRKDIR}/world/boot ${WRKDIR}/out/boot
}
hybridiso_generate()
{
FINALIMAGE=${IMAGENAME}.iso
espfilename=$(mktemp /tmp/efiboot.XXXXXX)
make_esp_file ${espfilename} 10 ${WRKDIR}/world/boot/loader.efi
# Make ISO image.
makefs -t cd9660 -o rockridge -o label=${IMAGENAME} \
-o publisher="poudriere" \
-o bootimage="i386;${WRKDIR}/out/boot/cdboot" \
-o bootimage="i386;${espfilename}" \
-o platformid=efi \
-o no-emul-boot "${OUTPUTDIR}/${FINALIMAGE}" ${WRKDIR}/world
# Find the EFI System Partition on the ISO.
for entry in $(etdump --format shell ${OUTPUTDIR}/${FINALIMAGE}); do
eval $entry
if [ "$et_platform" = "efi" ]; then
espstart=$(expr $et_lba \* 2048)
espsize=$(expr $et_sectors \* 512)
espparam="-p efi::$espsize:$espstart"
break
fi
done
# Create a GPT image with the partitions needed for hybrid boot.
imgsize=$(stat -f %z "${OUTPUTDIR}/${FINALIMAGE}")
mkimg -s gpt \
--capacity $imgsize \
-b "$WRKDIR/out/boot/pmbr" \
-p freebsd-boot:="$WRKDIR/out/boot/isoboot" \
$espparam \
-o "${OUTPUTDIR}/hybridiso.img"
# Drop the PMBR, GPT, and boot code into the System Area of the ISO.
dd if="${OUTPUTDIR}/hybridiso.img" of="${OUTPUTDIR}/${FINALIMAGE}" bs=32k count=1 conv=notrunc
rm -f "${OUTPUTDIR}/hybridiso.img"
}
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