341 lines
9.0 KiB
Bash
Executable File
341 lines
9.0 KiB
Bash
Executable File
#!/bin/sh
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# $NetBSD: mkimage,v 1.82 2024/04/09 15:17:24 nia Exp $
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#
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# Copyright (c) 2013, 2014 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Christos Zoulas.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of The NetBSD Foundation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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#
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# Makes a bootable image for the host architecture given.
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# The host specific functions are pulled in from a /bin/sh script in the
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# "conf" directory, and is expected to provide the following shell
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# functions, which are called in the following order:
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#
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# - make_fstab: Creates the host's /etc/fstab with / on ${rootdev}.
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# If -m is given, a number of directories are put on a tmpfs RAM disk
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# - customize: After unpacking the sets, this gets the system to
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# a working state, e. g. by setting up /etc/rc.conf and /dev
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# - populate: Add common goods like kernel and bootloader
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# - make_label: Prints disklabel to stdout
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#
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set -e
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DIR="$(cd "$(dirname "$0")" && pwd)"
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PROG="$(basename "$0")"
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MAKE=${TOOL_MAKE:-make}
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DISKLABEL=${TOOL_DISKLABEL:-disklabel}
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FDISK=${TOOL_FDISK:-fdisk}
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GPT=${TOOL_GPT:-gpt}
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MAKEFS=${TOOL_MAKEFS:-makefs}
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MTREE=${TOOL_MTREE:-mtree}
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INSTALLBOOT=${TOOL_INSTALLBOOT:-installboot}
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MKUBOOTIMAGE=${TOOL_MKUBOOTIMAGE:-mkubootimage}
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GZIP_CMD=${TOOL_GZIP:-gzip} # ${GZIP} is special to gzip(1)
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src="/usr/src"
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sets="base comp etc games gpufw man manhtml misc modules rescue tests text"
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xsets="xbase xcomp xetc xfont xserver"
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minfree="10%"
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bar="==="
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tmp="$(mktemp -d "${TMPDIR:-/tmp}/$PROG.XXXXXX")"
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mnt="${tmp}/mnt"
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mkdir -p "${mnt}/etc" "${mnt}/dev"
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trap "cleanup" 0 1 2 3 15
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cleanup() {
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case "$tmp" in
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"${TMPDIR:-/tmp}/$PROG."*) rm -fr "$tmp";;
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esac
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}
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fail() {
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IFS=' '
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echo >&2 "${PROG}: $*"
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exit 1
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}
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getsize() {
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set -- $(ls -l $1)
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echo $5
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}
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getsectors() {
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case "$1" in
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*g)
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m=1073741824
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v=${1%g}
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;;
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*m)
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m=1048576
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v=${1%m}
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;;
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*k)
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m=1024
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v=${1%k}
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;;
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*[0-9b])
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m=1
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v=${1%b}
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;;
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esac
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echo $((m * v / 512))
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}
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usage() {
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cat << EOF 1>&2
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Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>]
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-b Boot only, no sets loaded
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-r root device kind (sd, wd, ld)
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-d Add the debug sets
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-m Optimize the OS installation to mimimize disk writes for SSDs
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-x Load the X sets too, not just the base ones
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EOF
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exit 1
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}
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# First pass for options to get the host and src directories
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OPTS="B:D:K:S:bc:dh:mr:s:x"
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while getopts "$OPTS" f
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do
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case $f in
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h) h="$OPTARG";;
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S) src="$OPTARG";;
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*) ;;
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esac
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done
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if [ -z "$h" ]
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then
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usage
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fi
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if [ ! -f "${DIR}/conf/${h}.conf" ]
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then
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echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2
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exit 1
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fi
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resize=false
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gpt=false
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gpt_hybrid=false
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. "${DIR}/conf/${h}.conf"
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release="/usr/obj/${MACHINE}/release"
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selected_sets="$sets"
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dsets_p=false
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xsets_p=false
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minwrites=false
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rootdev=ld
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endian=
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OPTIND=1
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while getopts "$OPTS" f
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do
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case $f in
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B) endian="-B $OPTARG";;
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D) release="$OPTARG";;
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K) kernel="$OPTARG";;
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S) ;;
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b) bootonly=true;;
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d) dsets_p=true
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selected_sets="$selected_sets debug"
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if $xsets_p; then
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selected_sets="$selected_sets xdebug"
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fi
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;;
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c) custom="$OPTARG";;
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h) ;;
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m) minwrites=true;;
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r) rootdev="$OPTARG";;
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s) size="$OPTARG";;
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x) xsets_p=true
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selected_sets="$selected_sets $xsets"
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if $dsets_p; then
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selected_sets="$selected_sets xdebug"
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fi
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;;
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*) usage;;
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esac
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done
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if [ -n "${MKREPRO_TIMESTAMP}" ]; then
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timestamp_opt="-T ${MKREPRO_TIMESTAMP}"
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volume_opt=",volume_id=$((${MKREPRO_TIMESTAMP} & 0xffff))"
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fi
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shift $(( $OPTIND - 1 ))
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if [ -n "$1" ]; then
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# take the next argument as being the image name
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image="$1"
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shift
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fi
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case "$image" in
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*.gz) compress=true; image="${image%.gz}";;
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*) compress=false;;
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esac
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if [ -z "${bootonly}" ]; then
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echo ${bar} configuring sets ${bar}
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(cat "${release}/etc/mtree/NetBSD.dist"
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for i in $selected_sets; do
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s="${release}/etc/mtree/set.$i"
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if [ -f "$s" ]; then
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cat "$s"
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fi
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done) > "$tmp/selected_sets"
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fi
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make_fstab
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customize
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populate
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if [ ! "${MKDTB}" = "no" ]; then
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#
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# Part of the dtb set resides on the FAT partition (/boot/dtb/*), and
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# the rest on FFS. Split it up here.
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#
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echo ${bar} Installing devicetree blobs ${bar}
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mkdir -p "${mnt}/boot"
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cp -r "${release}/boot/dtb" "${mnt}/boot/dtb"
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mkdir -p "${mnt}/etc/mtree"
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cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb"
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echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets"
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mkdir -p "${mnt}/var/db/obsolete"
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cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb"
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echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets"
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fi
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if [ -n "${msdosid}" ]; then
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echo ${bar} Populating msdos filesystem ${bar}
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case $(( ${msdosid} )) in
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1) fat_opt=",fat_type=12";;
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4|6|14) fat_opt=",fat_type=16";;
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11|12) fat_opt=",fat_type=32";;
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*) fat_opt=;;
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esac
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${MAKEFS} -N ${release}/etc -t msdos \
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-o "volume_label=NETBSD${fat_opt}${volume_opt}" ${timestamp_opt} \
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-O $((${init} / 2))m -s $((${boot} / 2))m \
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${image} ${mnt}/boot
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fi
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if [ -z "${bootonly}" ]; then
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echo ${bar} Populating ffs filesystem ${bar}
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${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \
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-O ${ffsoffset} ${timestamp_opt} \
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-o d=4096,f=8192,b=65536 -b $((${extra}))m \
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-F "$tmp/selected_sets" ${image} "${release}" "${mnt}"
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fi
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if [ "${size}" = 0 ]; then
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size="$(getsize "${image}")"
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# Round up to a multiple of 4m and add 1m of slop.
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alignunit=$((4*1024*1024))
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alignsize=$((alignunit*((size + alignunit - 1)/alignunit)))
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alignsize=$((alignsize + 1024*1024))
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if [ "${size}" -lt "${alignsize}" ]; then
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dd bs=1 count="$((alignsize - size))" if=/dev/zero \
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>> "${image}" 2> /dev/null
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size="${alignsize}"
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fi
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fi
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if $gpt; then
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if $gpt_hybrid; then
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gpt_flags="-H"
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fi
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gpt_flags="${gpt_flags} ${timestamp_opt}"
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initsecs=$((${init} * 1024))
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bootsecs=$((${boot} * 1024))
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ffsstart="$(getsectors ${ffsoffset})"
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echo ${bar} Clearing existing partitions ${bar}
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${GPT} ${gpt_flags} ${image} destroy || true
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echo ${bar} Creating partitions ${bar}
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${GPT} ${gpt_flags} ${image} create ${gpt_create_flags}
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${GPT} ${gpt_flags} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_boot:-EFI} -t ${gpt_boot_type:-efi}
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${GPT} ${gpt_flags} ${image} set -a required -i 1
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${GPT} ${gpt_flags} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs
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${GPT} ${gpt_flags} ${image} show
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if $gpt_hybrid; then
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echo ${bar} Creating hybrid MBR ${bar}
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${FDISK} -f -g -u -0 -a -s ${msdosid}/${initsecs}/${bootsecs} -F ${image}
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${FDISK} -f -g -u -3 -s 238/1/$((${initsecs} - 1)) -F ${image}
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${FDISK} -F ${image}
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fi
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else
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if [ -n "${msdosid}" ]; then
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echo ${bar} Running fdisk ${bar}
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initsecs=$((${init} * 1024))
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bootsecs=$((${boot} * 1024))
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${FDISK} -f -i ${image}
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${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image}
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if [ -z "${bootonly}" ]; then
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ffsstart="$(getsectors ${ffsoffset})"
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imagesize="$(getsize "${image}")"
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imagesecs="$(getsectors ${imagesize})"
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ffssize="$(expr ${imagesecs} - ${ffsstart})"
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${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image}
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fi
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echo ${bar} Adding label ${bar}
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make_label > ${tmp}/label
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${DISKLABEL} -m -R -F ${image} ${tmp}/label
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elif [ -n "${netbsdid}" ]; then
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echo ${bar} Adding label ${bar}
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make_label > ${tmp}/label
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${DISKLABEL} -m -R -F ${image} ${tmp}/label
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echo ${bar} Running fdisk ${bar}
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${FDISK} -f -i ${image}
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${FDISK} -f -a -u -0 -s 169/${init} ${image}
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${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1
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fi
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fi
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if $compress; then
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echo ${bar} Compressing image ${bar}
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rm -f "${image}.gz"
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${GZIP_CMD} -n -9 ${image}
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image="${image}.gz"
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fi
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echo ${bar} Image is ${image} ${bar}
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