HardenedBSD/release/scripts/mk-vmimage.sh
Glen Barber 08a75d1f0e Create the arm64/aarch64 VM disk image as MBR instead of
GPT scheme.  UEFI needs to know the unique partition GUID
with GPT, which changes each time.  Specifically, the QEMU
EFI BIOS file has this hard-coded.[1]

Since the GPT labels are now unavailable, unconditionally
label the root filesystem as 'rootfs' with newfs(8), since
it does not hurt anything anywhere else.  For the arm64 case,
'/' is mounted from /dev/ufs/rootfs; for all other VM images,
'/' is mounted from /dev/gpt/rootfs.

Unfortunately, since the /dev/gpt/swapfs label is also lost,
set NOSWAP=1 for the arm64/aarch64 images.  This is temporary,
until I figure out a scalable solution to this.  But, a certain
piece of softare was written "very fast", and ended up living
for 15 years.  We can deal with this for a week or so.

Information from:	andrew, emaste [1]
Sponsored by:	The FreeBSD Foundation
2015-04-23 01:04:14 +00:00

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#!/bin/sh
#-
# Copyright (c) 2014, 2015 The FreeBSD Foundation
# All rights reserved.
#
# This software was developed by Glen Barber under sponsorship
# from the FreeBSD Foundation.
#
# 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.
#
# mk-vmimage.sh: Create virtual machine disk images in various formats.
#
# $FreeBSD$
#
usage() {
echo "${0} usage:"
echo "${@}"
return 1
}
main() {
local arg
VMCONFIG="/dev/null"
while getopts "C:c:d:f:i:o:s:S:" arg; do
case "${arg}" in
C)
VMBUILDCONF="${OPTARG}"
;;
c)
VMCONFIG="${OPTARG}"
;;
d)
DESTDIR="${OPTARG}"
;;
f)
VMFORMAT="${OPTARG}"
;;
i)
VMBASE="${OPTARG}"
;;
o)
VMIMAGE="${OPTARG}"
;;
s)
VMSIZE="${OPTARG}"
;;
S)
WORLDDIR="${OPTARG}"
;;
*)
;;
esac
done
shift $(( ${OPTIND} - 1))
if [ -z "${VMBASE}" -o \
-z "${WORLDDIR}" -o \
-z "${DESTDIR}" -o \
-z "${VMSIZE}" -o \
-z "${VMIMAGE}" ];
then
usage || exit 0
fi
if [ -z "${VMBUILDCONF}" ] || [ ! -e "${VMBUILDCONF}" ]; then
echo "Must provide the path to vmimage.subr."
return 1
fi
. "${VMBUILDCONF}"
if [ ! -z "${VMCONFIG}" ] && [ ! -c "${VMCONFIG}" ]; then
. "${VMCONFIG}"
fi
case ${TARGET}:${TARGET_ARCH} in
arm64:aarch64)
ROOTLABEL="ufs"
NOSWAP=1
;;
*)
ROOTLABEL="gpt"
;;
esac
vm_create_base
vm_install_base
vm_extra_install_base
vm_extra_install_packages
vm_extra_install_ports
vm_extra_enable_services
vm_extra_pre_umount
vm_extra_pkg_rmcache
cleanup
vm_copy_base
vm_create_disk || return 0
vm_extra_create_disk
return 0
}
main "$@"