diff --git a/release/release.sh b/release/release.sh
index 4020c27feaa0..58f946b9bba1 100755
--- a/release/release.sh
+++ b/release/release.sh
@@ -1,505 +1,512 @@
 #!/bin/sh
 #-
 # Copyright (c) 2020-2021 Rubicon Communications, LLC (netgate.com)
 # Copyright (c) 2013-2019 The FreeBSD Foundation
 # Copyright (c) 2013 Glen Barber
 # Copyright (c) 2011 Nathan Whitehorn
 # All rights reserved.
 #
 # Portions of this software were 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.
 #
 # release.sh: check out source trees, and build release components with
 #  totally clean, fresh trees.
 # Based on release/generate-release.sh written by Nathan Whitehorn
 #
 
 export PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin"
 
 VERSION=3
 
 # Prototypes that can be redefined per-chroot or per-target.
 load_chroot_env() { }
 load_target_env() { }
 buildenv_setup() { }
 
 usage() {
 	echo "Usage: $0 [-c release.conf]"
 	exit 1
 }
 
 # env_setup(): Set up the default build environment variables, such as the
 # CHROOTDIR, VCSCMD, GITROOT, etc.  This is called before the release.conf
 # file is sourced, if '-c <release.conf>' is specified.
 env_setup() {
 	# The directory within which the release will be built.
 	CHROOTDIR="/scratch"
 	if [ -z "${RELENGDIR}" ]; then
 		export RELENGDIR="$(dirname $(realpath ${0}))"
 	fi
 
 	# The default version control system command to obtain the sources.
 	for _dir in /usr/bin /usr/local/bin; do
 		[ -x "${_dir}/git" ] && VCSCMD="/${_dir}/git"
 		[ ! -z "${VCSCMD}" ] && break 2
 	done
 
 	# Find the Subversion binary to use.  This is a workaround to use
 	# the source of truth for the ports tree, as the conversion to Git
 	# is targeted to occur slightly after the currently-scheduled 13.0
 	# release.
 	for _dir in /usr/bin /usr/local/bin; do
 		for _svn in svn svnlite; do
 			[ -x "${_dir}/${_svn}" ] && SVNCMD="${_dir}/${_svn}"
 			[ ! -z "${SVNCMD}" ] && break 2
 		done
 	done
 
 	if [ -z "${VCSCMD}" -a -z "${NOGIT}" ]; then
 		echo "*** The devel/git port/package is required."
 		exit 1
 	fi
 	VCSCMD="/usr/local/bin/git clone -q"
 
 	# The default git checkout server, and branches for src/, doc/,
 	# and ports/.
 	GITROOT="https://git.FreeBSD.org/"
 	SRCBRANCH="main"
 	DOCBRANCH="main"
 	PORTBRANCH="head"
 	GITSRC="src.git"
 	GITPORTS="ports.git"
 	GITDOC="doc.git"
 
 	# Set for embedded device builds.
 	EMBEDDEDBUILD=
 
 	# The default make.conf and src.conf to use.  Set to /dev/null
 	# by default to avoid polluting the chroot(8) environment with
 	# non-default settings.
 	MAKE_CONF="/dev/null"
 	SRC_CONF="/dev/null"
 
 	# The number of make(1) jobs, defaults to the number of CPUs available
 	# for buildworld, and half of number of CPUs available for buildkernel.
 	WORLD_FLAGS="-j$(sysctl -n hw.ncpu)"
 	KERNEL_FLAGS="-j$(( $(( $(sysctl -n hw.ncpu) + 1 )) / 2))"
 
 	MAKE_FLAGS="-s"
 
 	# The name of the kernel to build, defaults to GENERIC.
 	KERNEL="GENERIC"
 
 	# Set to non-empty value to disable checkout of doc/ and/or ports/.
 	# Disabling ports/ checkout also forces NODOC to be set.
 	NODOC=
 	NOPORTS=
 
 	# Set to non-empty value to disable distributing source tree.
 	NOSRC=
 
 	# Set to non-empty value to build dvd1.iso as part of the release.
 	WITH_DVD=
 	WITH_COMPRESSED_IMAGES=
 
 	# Set to non-empty value to build virtual machine images as part of
 	# the release.
 	WITH_VMIMAGES=
 	WITH_COMPRESSED_VMIMAGES=
 	XZ_THREADS=0
 
 	# Set to non-empty value to build virtual machine images for various
 	# cloud providers as part of the release.
 	WITH_CLOUDWARE=
 
 	return 0
 } # env_setup()
 
 # env_check(): Perform sanity tests on the build environment, such as ensuring
 # files/directories exist, as well as adding backwards-compatibility hacks if
 # necessary.  This is called unconditionally, and overrides the defaults set
 # in env_setup() if '-c <release.conf>' is specified.
 env_check() {
 	chroot_build_release_cmd="chroot_build_release"
 
 	# Prefix the branches with the GITROOT for the full checkout URL.
 	SRC="${GITROOT}${GITSRC}"
 	DOC="${GITROOT}${GITDOC}"
 	#PORT="${GITROOT}${GITPORTS}"
 	PORT="svn://svn.freebsd.org/ports/"
 
 	if [ -n "${EMBEDDEDBUILD}" ]; then
 		WITH_DVD=
 		WITH_COMPRESSED_IMAGES=
 		NODOC=yes
 		case ${EMBEDDED_TARGET}:${EMBEDDED_TARGET_ARCH} in
 			arm:arm*|arm64:aarch64|riscv:riscv64*)
 				chroot_build_release_cmd="chroot_arm_build_release"
 				;;
 			*)
 				;;
 		esac
 	fi
 
 	# If PORTS is set and NODOC is unset, force NODOC=yes because the ports
 	# tree is required to build the documentation set.
 	if [ -n "${NOPORTS}" ] && [ -z "${NODOC}" ]; then
 		echo "*** NOTICE: Setting NODOC=1 since ports tree is required"
 		echo "            and NOPORTS is set."
 		NODOC=yes
 	fi
 
 	# If NOSRC, NOPORTS and/or NODOC are unset, they must not pass to make
 	# as variables.  The release makefile verifies definedness of the
 	# NOPORTS/NODOC variables instead of their values.
 	SRCDOCPORTS=
 	if [ -n "${NOPORTS}" ]; then
 		SRCDOCPORTS="NOPORTS=yes"
 	fi
 	if [ -n "${NODOC}" ]; then
 		SRCDOCPORTS="${SRCDOCPORTS}${SRCDOCPORTS:+ }NODOC=yes"
 	fi
 	if [ -n "${NOSRC}" ]; then
 		SRCDOCPORTS="${SRCDOCPORTS}${SRCDOCPORTS:+ }NOSRC=yes"
 	fi
 
 	# The aggregated build-time flags based upon variables defined within
 	# this file, unless overridden by release.conf.  In most cases, these
 	# will not need to be changed.
 	CONF_FILES="__MAKE_CONF=${MAKE_CONF} SRCCONF=${SRC_CONF}"
 	if [ -n "${TARGET}" ] && [ -n "${TARGET_ARCH}" ]; then
 		ARCH_FLAGS="TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH}"
 	else
 		ARCH_FLAGS=
 	fi
 
 	if [ -z "${CHROOTDIR}" ]; then
 		echo "Please set CHROOTDIR."
 		exit 1
 	fi
 
 	if [ $(id -u) -ne 0 ]; then
 		echo "Needs to be run as root."
 		exit 1
 	fi
 
 	# Unset CHROOTBUILD_SKIP if the chroot(8) does not appear to exist.
 	if [ ! -z "${CHROOTBUILD_SKIP}" -a ! -e ${CHROOTDIR}/bin/sh ]; then
 		CHROOTBUILD_SKIP=
 	fi
 
 	CHROOT_MAKEENV="${CHROOT_MAKEENV} \
 		MAKEOBJDIRPREFIX=${CHROOTDIR}/tmp/obj"
 	CHROOT_WMAKEFLAGS="${MAKE_FLAGS} ${WORLD_FLAGS} ${CONF_FILES}"
 	CHROOT_IMAKEFLAGS="${WORLD_FLAGS} ${CONF_FILES}"
 	CHROOT_DMAKEFLAGS="${WORLD_FLAGS} ${CONF_FILES}"
 	RELEASE_WMAKEFLAGS="${MAKE_FLAGS} ${WORLD_FLAGS} ${ARCH_FLAGS} \
 		${CONF_FILES}"
 	RELEASE_KMAKEFLAGS="${MAKE_FLAGS} ${KERNEL_FLAGS} \
 		KERNCONF=\"${KERNEL}\" ${ARCH_FLAGS} ${CONF_FILES}"
 	RELEASE_RMAKEFLAGS="${ARCH_FLAGS} \
 		KERNCONF=\"${KERNEL}\" ${CONF_FILES} ${SRCDOCPORTS} \
 		WITH_DVD=${WITH_DVD} WITH_VMIMAGES=${WITH_VMIMAGES} \
 		WITH_CLOUDWARE=${WITH_CLOUDWARE} XZ_THREADS=${XZ_THREADS}"
 
 	return 0
 } # env_check()
 
 # chroot_setup(): Prepare the build chroot environment for the release build.
 chroot_setup() {
 	load_chroot_env
 	mkdir -p ${CHROOTDIR}/usr
 
 	if [ -z "${SRC_UPDATE_SKIP}" ]; then
 		if [ -d "${CHROOTDIR}/usr/src/.git" ]; then
 			git -C ${CHROOTDIR}/usr/src pull -q
 		else
 			${VCSCMD} ${SRC} -b ${SRCBRANCH} ${CHROOTDIR}/usr/src
 		fi
 	fi
 	if [ -z "${NODOC}" ] && [ -z "${DOC_UPDATE_SKIP}" ]; then
 		if [ -d "${CHROOTDIR}/usr/doc/.git" ]; then
 			git -C ${CHROOTDIR}/usr/doc pull -q
 		else
 			${VCSCMD} ${DOC} -b ${DOCBRANCH} ${CHROOTDIR}/usr/doc
 		fi
 	fi
 	if [ -z "${NOPORTS}" ] && [ -z "${PORTS_UPDATE_SKIP}" ]; then
 		# if [ -d "${CHROOTDIR}/usr/ports/.git" ]; then
 			# git -C ${CHROOTDIR}/usr/ports pull -q
 		# XXX: Workaround for the overlap in the Git conversion timeframe.
 		if [ -d "${CHROOTDIR}/usr/ports/.svn" ]; then
 			${SVNCMD} update ${CHROOTDIR}/usr/ports
 		else
 			#${VCSCMD} ${PORT} -b ${PORTBRANCH} ${CHROOTDIR}/usr/ports
 			# XXX: Workaround for the overlap in the Git
 			# conversion timeframe.
 			${SVNCMD} co ${PORT}/${PORTBRANCH} ${CHROOTDIR}/usr/ports
 		fi
 	fi
 
 	if [ -z "${CHROOTBUILD_SKIP}" ]; then
 		cd ${CHROOTDIR}/usr/src
 		env ${CHROOT_MAKEENV} make ${CHROOT_WMAKEFLAGS} buildworld
 		env ${CHROOT_MAKEENV} make ${CHROOT_IMAKEFLAGS} installworld \
 			DESTDIR=${CHROOTDIR}
 		env ${CHROOT_MAKEENV} make ${CHROOT_DMAKEFLAGS} distribution \
 			DESTDIR=${CHROOTDIR}
 	fi
 
 	return 0
 } # chroot_setup()
 
 # extra_chroot_setup(): Prepare anything additional within the build
 # necessary for the release build.
 extra_chroot_setup() {
 	mkdir -p ${CHROOTDIR}/dev
 	mount -t devfs devfs ${CHROOTDIR}/dev
 	[ -e /etc/resolv.conf -a ! -e ${CHROOTDIR}/etc/resolv.conf ] && \
 		cp /etc/resolv.conf ${CHROOTDIR}/etc/resolv.conf
 	# Run ldconfig(8) in the chroot directory so /var/run/ld-elf*.so.hints
 	# is created.  This is needed by ports-mgmt/pkg.
 	eval chroot ${CHROOTDIR} /etc/rc.d/ldconfig forcerestart
 
 	# If MAKE_CONF and/or SRC_CONF are set and not character devices
 	# (/dev/null), copy them to the chroot.
 	if [ -e ${MAKE_CONF} ] && [ ! -c ${MAKE_CONF} ]; then
 		mkdir -p ${CHROOTDIR}/$(dirname ${MAKE_CONF})
 		cp ${MAKE_CONF} ${CHROOTDIR}/${MAKE_CONF}
 	fi
 	if [ -e ${SRC_CONF} ] && [ ! -c ${SRC_CONF} ]; then
 		mkdir -p ${CHROOTDIR}/$(dirname ${SRC_CONF})
 		cp ${SRC_CONF} ${CHROOTDIR}/${SRC_CONF}
 	fi
 
 	if [ -z "${NOGIT}" ]; then
 		# Install git from ports or packages if the ports tree is
 		# available and VCSCMD is unset.
 		_gitcmd="$(which git)"
 		if [ -d ${CHROOTDIR}/usr/ports -a -z "${_gitcmd}" ]; then
 			# Trick the ports 'run-autotools-fixup' target to do the right
 			# thing.
 			_OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
 			REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
 			BRANCH=$(chroot ${CHROOTDIR} make -C /usr/src/release -V BRANCH)
 			UNAME_r=${REVISION}-${BRANCH}
 			GITUNSETOPTS="CONTRIB CURL CVS GITWEB GUI HTMLDOCS"
 			GITUNSETOPTS="${GITUNSETOPTS} ICONV NLS P4 PERL"
 			GITUNSETOPTS="${GITUNSETOPTS} SEND_EMAIL SUBTREE SVN"
 			GITUNSETOPTS="${GITUNSETOPTS} PCRE PCRE2"
+			PBUILD_FLAGS="OSVERSION=${_OSVERSION} BATCH=yes"
+			PBUILD_FLAGS="${PBUILD_FLAGS} UNAME_r=${UNAME_r}"
+			PBUILD_FLAGS="${PBUILD_FLAGS} OSREL=${REVISION}"
+			PBUILD_FLAGS="${PBUILD_FLAGS} WRKDIRPREFIX=/tmp/ports"
+			PBUILD_FLAGS="${PBUILD_FLAGS} DISTDIR=/tmp/distfiles"
 			eval chroot ${CHROOTDIR} env OPTIONS_UNSET=\"${GITUNSETOPTS}\" \
+				${PBUILD_FLAGS} \
 				make -C /usr/ports/devel/git FORCE_PKG_REGISTER=1 \
 				WRKDIRPREFIX=/tmp/ports \
 				DISTDIR=/tmp/distfiles \
 				install clean distclean
 		else
 			eval chroot ${CHROOTDIR} env ASSUME_ALWAYS_YES=yes \
 				pkg install -y devel/git
 			eval chroot ${CHROOTDIR} env ASSUME_ALWAYS_YES=yes \
 				pkg clean -y
 		fi
 	fi
 	if [ -z "${NODOC}" ] && [ -d ${CHROOTDIR}/usr/ports ]; then
 		# Trick the ports 'run-autotools-fixup' target to do the right
 		# thing.
 		_OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
 		REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
 		BRANCH=$(chroot ${CHROOTDIR} make -C /usr/src/release -V BRANCH)
 		UNAME_r=${REVISION}-${BRANCH}
 		if [ -d ${CHROOTDIR}/usr/doc ] && [ -z "${NODOC}" ]; then
 			PBUILD_FLAGS="OSVERSION=${_OSVERSION} BATCH=yes"
 			PBUILD_FLAGS="${PBUILD_FLAGS} UNAME_r=${UNAME_r}"
 			PBUILD_FLAGS="${PBUILD_FLAGS} OSREL=${REVISION}"
 			PBUILD_FLAGS="${PBUILD_FLAGS} WRKDIRPREFIX=/tmp/ports"
 			PBUILD_FLAGS="${PBUILD_FLAGS} DISTDIR=/tmp/distfiles"
 			chroot ${CHROOTDIR} env ${PBUILD_FLAGS} \
 				OPTIONS_UNSET="AVAHI FOP IGOR" make -C \
 				/usr/ports/textproc/docproj \
 				FORCE_PKG_REGISTER=1 \
 				install clean distclean
 		fi
 	fi
 
 	if [ ! -z "${EMBEDDEDPORTS}" ]; then
 		_OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
 		REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
 		BRANCH=$(chroot ${CHROOTDIR} make -C /usr/src/release -V BRANCH)
+		UNAME_r=${REVISION}-${BRANCH}
 		PBUILD_FLAGS="OSVERSION=${_OSVERSION} BATCH=yes"
 		PBUILD_FLAGS="${PBUILD_FLAGS} UNAME_r=${UNAME_r}"
 		PBUILD_FLAGS="${PBUILD_FLAGS} OSREL=${REVISION}"
 		PBUILD_FLAGS="${PBUILD_FLAGS} WRKDIRPREFIX=/tmp/ports"
 		PBUILD_FLAGS="${PBUILD_FLAGS} DISTDIR=/tmp/distfiles"
 		for _PORT in ${EMBEDDEDPORTS}; do
 			eval chroot ${CHROOTDIR} env ${PBUILD_FLAGS} make -C \
 				/usr/ports/${_PORT} \
 				FORCE_PKG_REGISTER=1 deinstall install clean distclean
 		done
 	fi
 
 	buildenv_setup
 
 	return 0
 } # extra_chroot_setup()
 
 # chroot_build_target(): Build the userland and kernel for the build target.
 chroot_build_target() {
 	load_target_env
 	if [ ! -z "${EMBEDDEDBUILD}" ]; then
 		RELEASE_WMAKEFLAGS="${RELEASE_WMAKEFLAGS} \
 			TARGET=${EMBEDDED_TARGET} \
 			TARGET_ARCH=${EMBEDDED_TARGET_ARCH}"
 		RELEASE_KMAKEFLAGS="${RELEASE_KMAKEFLAGS} \
 			TARGET=${EMBEDDED_TARGET} \
 			TARGET_ARCH=${EMBEDDED_TARGET_ARCH}"
 	fi
 	eval chroot ${CHROOTDIR} make -C /usr/src ${RELEASE_WMAKEFLAGS} buildworld
 	eval chroot ${CHROOTDIR} make -C /usr/src ${RELEASE_KMAKEFLAGS} buildkernel
 
 	return 0
 } # chroot_build_target
 
 # chroot_build_release(): Invoke the 'make release' target.
 chroot_build_release() {
 	load_target_env
 	if [ ! -z "${WITH_VMIMAGES}" ]; then
 		if [ -z "${VMFORMATS}" ]; then
 			VMFORMATS="$(eval chroot ${CHROOTDIR} \
 				make -C /usr/src/release -V VMFORMATS)"
 		fi
 		if [ -z "${VMSIZE}" ]; then
 			VMSIZE="$(eval chroot ${CHROOTDIR} \
 				make -C /usr/src/release -V VMSIZE)"
 		fi
 		RELEASE_RMAKEFLAGS="${RELEASE_RMAKEFLAGS} \
 			VMFORMATS=\"${VMFORMATS}\" VMSIZE=${VMSIZE}"
 	fi
 	eval chroot ${CHROOTDIR} make -C /usr/src/release \
 		${RELEASE_RMAKEFLAGS} release
 	eval chroot ${CHROOTDIR} make -C /usr/src/release \
 		${RELEASE_RMAKEFLAGS} install DESTDIR=/R \
 		WITH_COMPRESSED_IMAGES=${WITH_COMPRESSED_IMAGES} \
 		WITH_COMPRESSED_VMIMAGES=${WITH_COMPRESSED_VMIMAGES}
 
 	return 0
 } # chroot_build_release()
 
 efi_boot_name()
 {
 	case $1 in
 		arm)
 			echo "bootarm.efi"
 			;;
 		arm64)
 			echo "bootaa64.efi"
 			;;
 		amd64)
 			echo "bootx64.efi"
 			;;
 		riscv)
 			echo "bootriscv64.efi"
 			;;
 	esac
 }
 
 # chroot_arm_build_release(): Create arm SD card image.
 chroot_arm_build_release() {
 	load_target_env
 	case ${EMBEDDED_TARGET} in
 		arm|arm64|riscv)
 			if [ -e "${RELENGDIR}/tools/arm.subr" ]; then
 				. "${RELENGDIR}/tools/arm.subr"
 			fi
 			;;
 		*)
 			;;
 	esac
 	[ ! -z "${RELEASECONF}" ] && . "${RELEASECONF}"
 	export MAKE_FLAGS="${MAKE_FLAGS} TARGET=${EMBEDDED_TARGET}"
 	export MAKE_FLAGS="${MAKE_FLAGS} TARGET_ARCH=${EMBEDDED_TARGET_ARCH}"
 	export MAKE_FLAGS="${MAKE_FLAGS} ${CONF_FILES}"
 	eval chroot ${CHROOTDIR} env WITH_UNIFIED_OBJDIR=1 make ${MAKE_FLAGS} -C /usr/src/release obj
 	export WORLDDIR="$(eval chroot ${CHROOTDIR} make ${MAKE_FLAGS} -C /usr/src/release -V WORLDDIR)"
 	export OBJDIR="$(eval chroot ${CHROOTDIR} env WITH_UNIFIED_OBJDIR=1 make ${MAKE_FLAGS} -C /usr/src/release -V .OBJDIR)"
 	export DESTDIR="${OBJDIR}/${KERNEL}"
 	export IMGBASE="${CHROOTDIR}/${OBJDIR}/${BOARDNAME}.img"
 	export OSRELEASE="$(eval chroot ${CHROOTDIR} make ${MAKE_FLAGS} -C /usr/src/release \
 		TARGET=${EMBEDDED_TARGET} TARGET_ARCH=${EMBEDDED_TARGET_ARCH} \
 		-V OSRELEASE)"
 	chroot ${CHROOTDIR} mkdir -p ${DESTDIR}
 	chroot ${CHROOTDIR} truncate -s ${IMAGE_SIZE} ${IMGBASE##${CHROOTDIR}}
 	export mddev=$(chroot ${CHROOTDIR} \
 		mdconfig -f ${IMGBASE##${CHROOTDIR}} ${MD_ARGS})
 	arm_create_disk
 	arm_install_base
 	arm_install_boot
 	arm_install_uboot
 	mdconfig -d -u ${mddev}
 	chroot ${CHROOTDIR} rmdir ${DESTDIR}
 	mv ${IMGBASE} ${CHROOTDIR}/${OBJDIR}/${OSRELEASE}-${BOARDNAME}.img
 	chroot ${CHROOTDIR} mkdir -p /R
 	chroot ${CHROOTDIR} cp -p ${OBJDIR}/${OSRELEASE}-${BOARDNAME}.img \
 		/R/${OSRELEASE}-${BOARDNAME}.img
 	chroot ${CHROOTDIR} xz -T ${XZ_THREADS} /R/${OSRELEASE}-${BOARDNAME}.img
 	cd ${CHROOTDIR}/R && sha512 ${OSRELEASE}* \
 		> CHECKSUM.SHA512
 	cd ${CHROOTDIR}/R && sha256 ${OSRELEASE}* \
 		> CHECKSUM.SHA256
 
 	return 0
 } # chroot_arm_build_release()
 
 # main(): Start here.
 main() {
 	set -e # Everything must succeed
 	env_setup
 	while getopts c: opt; do
 		case ${opt} in
 			c)
 				RELEASECONF="$(realpath ${OPTARG})"
 				;;
 			\?)
 				usage
 				;;
 		esac
 	done
 	shift $(($OPTIND - 1))
 	if [ ! -z "${RELEASECONF}" ]; then
 		if [ -e "${RELEASECONF}" ]; then
 			. ${RELEASECONF}
 		else
 			echo "Nonexistent configuration file: ${RELEASECONF}"
 			echo "Using default build environment."
 		fi
 	fi
 	env_check
 	trap "umount ${CHROOTDIR}/dev" EXIT # Clean up devfs mount on exit
 	chroot_setup
 	extra_chroot_setup
 	chroot_build_target
 	${chroot_build_release_cmd}
 
 	return 0
 } # main()
 
 main "${@}"