Simplify mkrootfs.sh.in
Previously this script could produce rootfs tarballs suitable for a few different systems. This worked but meant that several different scripts were then building root filesystems instead of just using ones produced by this script. This commit cleans up the script to produce just a root filesystem. Note that this system is not bootable, that still needs to be done by another script which processes platform specific operations. This script just produces a root filesystem for every architecture that XBPS understands.
This commit is contained in:
Michael Aldridge
parent
1547ff40e6
commit
a7ba42f7ec
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@ -4,5 +4,6 @@
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*.iso
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*.raw
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*.tar.gz
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xbps-cache
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xbps-cachedir*
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!dracut/*/*.sh
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319
mkrootfs.sh.in
319
mkrootfs.sh.in
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@ -42,14 +42,20 @@ die() {
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exit 1
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}
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# Even though we only support really one target for most of these
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# architectures this lets us refer to these quickly and easily by
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# XBPS_ARCH. This makes it a lot more obvious what is happening later
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# in the script, and it makes it easier to consume the contents of
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# these down the road in later scripts.
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usage() {
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cat <<_EOF
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Usage: $PROGNAME [options] <platform>
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Usage: $PROGNAME [options] <arch>
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Supported platforms: i686, i686-musl, x86_64, x86_64-musl, GCP, GCP-musl
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dockstar, bananapi, beaglebone, cubieboard2, cubietruck,
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odroid-c2, odroid-u2, rpi, rpi2 (armv7), rpi3 (aarch64),
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usbarmory, ci20
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Supported architectures: i686, i686-musl, x86_64, x86_64-musl,
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armv5tel, armv5tel-musl, armv6l, armv6l-musl, armv7l, armv7l-musl
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aarch64, aarch64-musl,
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mipsel, mipsel-musl
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Options
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@ -57,9 +63,7 @@ Options
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-c <dir> Set XBPS cache directory (defaults to \$PWD/xbps-cachedir-<arch>)
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-C <file> Full path to the XBPS configuration file
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-h Show this help
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-p <pkgs> Additional packages to install into the ROOTFS (separated by blanks)
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-r <repo> Set XBPS repository (may be set multiple times)
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-k <cmd> Call "cmd <ROOTFSPATH>" after building the ROOTFS
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-V Show version
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_EOF
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}
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@ -72,6 +76,7 @@ mount_pseudofs() {
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}
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umount_pseudofs() {
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umount -f /proc/sys/fs/binfmt_misc >/dev/null 2>&1
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if [ -d "${ROOTFS}" ]; then
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for f in dev proc sys; do
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umount -f "$ROOTFS/$f" >/dev/null 2>&1
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@ -80,34 +85,41 @@ umount_pseudofs() {
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}
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run_cmd_target() {
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info_msg "Running $* for target $_ARCH ..."
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case "${_TARGET_ARCH}" in
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i686*|x86_64*) eval XBPS_ARCH="${_TARGET_ARCH}" "$@";;
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*) eval XBPS_TARGET_ARCH="${_TARGET_ARCH:=${_ARCH}}" "$@";;
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esac
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[ $? -ne 0 ] && die "Failed to run $*"
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info_msg "Running $* for target $XBPS_TARGET_ARCH ..."
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if [ "$XBPS_TARGET_ARCH" = "$(xbps-uhelper arch)" ] ; then
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# This is being run on the same architecture as the host,
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# therefore we should set XBPS_ARCH.
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if ! eval XBPS_ARCH="$XBPS_TARGET_ARCH" "$@" ; then
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die "Could not run command $*"
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fi
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else
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# This is being run on a foriegn arch, therefore we should set
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# XBPS_TARGET_ARCH. In this case XBPS will not attempt
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# certain actions and will require reconfiguration later.
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if ! eval XBPS_TARGET_ARCH="$XBPS_TARGET_ARCH" "$@" ; then
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die "Could not run command $*"
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fi
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fi
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}
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run_cmd() {
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info_msg "Running $* ..."
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info_msg "Running $*"
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eval "$@"
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[ $? -ne 0 ] && die "Failed to run $*"
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}
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# TODO: Figure out how to register the binfmt for x86_64 and for i686
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# to facilitate building on alien build systems.
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register_binfmt() {
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if [ "$ARCH" = "${_ARCH}" ]; then
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return 0
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fi
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mountpoint -q /proc/sys/fs/binfmt_misc || modprobe -q binfmt_misc; mount -t binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc
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case "${_ARCH}" in
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armv*)
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echo ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-arm-static:' > /proc/sys/fs/binfmt_misc/register
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mountpoint -q /proc/sys/fs/binfmt_misc || modprobe -q binfmt_misc; mount -t binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc 2>/dev/null
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case "${QEMU_BIN}" in
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qemu-arm-static)
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echo ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-arm-static:' > /proc/sys/fs/binfmt_misc/register 2>/dev/null
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;;
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aarch*)
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echo ':qemu-arm64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/bin/qemu-aarch64-static:' > /proc/sys/fs/binfmt_misc/register
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qemu-aarch64-static)
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echo ':arm64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/bin/qemu-aarch64-static:' > /proc/sys/fs/binfmt_misc/register 2>/dev/null
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;;
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mipsel*)
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echo ':mipsel:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-mipsel-static:' > /proc/sys/fs/binfmt_misc/register
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qemu-mipsel-static)
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echo ':mipsel:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-mipsel-static:' > /proc/sys/fs/binfmt_misc/register 2>/dev/null
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;;
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*)
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die "Unknown target architecture!"
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@ -119,166 +131,187 @@ register_binfmt() {
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#
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# main()
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#
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while getopts "b:C:c:hp:r:k:V" opt; do
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while getopts "C:c:h:r:V" opt; do
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case $opt in
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b) PKGBASE="$OPTARG";;
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C) XBPS_CONFFILE="-C $OPTARG";;
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c) XBPS_CACHEDIR="--cachedir=$OPTARG";;
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h) usage; exit 0;;
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p) EXTRA_PKGS="$OPTARG";;
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r) XBPS_REPOSITORY="$XBPS_REPOSITORY --repository=$OPTARG";;
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k) POST_HOOK="$OPTARG";;
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V) echo "$PROGNAME @@MKLIVE_VERSION@@"; exit 0;;
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esac
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done
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shift $((OPTIND - 1))
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XBPS_TARGET_ARCH="$1"
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PLATFORM="$1"
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SUBPLATFORM=$PLATFORM
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case "$PLATFORM" in
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i686*) _TARGET_ARCH="$PLATFORM"; _ARCH="i686";;
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x86_64*) _TARGET_ARCH="$PLATFORM"; _ARCH="x86_64";;
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GCP) _TARGET_ARCH="x86_64"; _ARCH="x86_64";;
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GCP-musl) _TARGET_ARCH="x86_64-musl"; _ARCH="x86_64";;
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dockstar) _TARGET_ARCH="armv5tel"; _ARCH="armv5tel";;
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rpi-musl) _TARGET_ARCH="armv6l-musl"; _ARCH="armv6l";;
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rpi) _TARGET_ARCH="armv6l"; _ARCH="armv6l";;
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rpi3-musl) _TARGET_ARCH="aarch64-musl"; _ARCH="aarch64";;
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rpi3) _TARGET_ARCH="aarch64"; _ARCH="aarch64";;
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ci20-musl) _TARGET_ARCH="mipselhf-musl"; _ARCH="mipsel-musl";;
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ci20) _TARGET_ARCH="mipselhf"; _ARCH="mipsel";;
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odroid-c2-musl) _TARGET_ARCH="aarch64-musl"; _ARCH="aarch64";;
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odroid-c2) _TARGET_ARCH="aarch64"; _ARCH="aarch64";;
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*-musl) _TARGET_ARCH="armv7l-musl"; _ARCH="armv7l";;
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*) _TARGET_ARCH="armv7l"; _ARCH="armv7l";;
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esac
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: "${XBPS_REPOSITORY:=--repository=http://repo.voidlinux.eu/current \
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--repository=http://repo.voidlinux.eu/current/musl \
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--repository=http://repo.voidlinux.eu/current/aarch64}"
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: "${XBPS_CACHEDIR:=--cachedir=$PWD/xbps-cachedir-${_TARGET_ARCH}}"
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case "$PLATFORM" in
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i686*|x86_64*) PKGBASE="base-voidstrap";;
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*) PKGBASE="base-system";;
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esac
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if [ -z "$PLATFORM" ]; then
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echo "$PROGNAME: platform was not set!"
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usage; exit 1
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fi
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case "$PLATFORM" in
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bananapi*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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beaglebone*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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cubieboard2*|cubietruck*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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dockstar*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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odroid-u2*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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rpi3*) SUBPLATFORM=rpi3; QEMU_BIN=qemu-aarch64-static;;
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rpi2*) SUBPLATFORM=rpi; QEMU_BIN=qemu-arm-static;;
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rpi*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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usbarmory*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-arm-static;;
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ci20*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-mipsel-static;;
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odroid-c2*) SUBPLATFORM=${PLATFORM%-musl}; QEMU_BIN=qemu-aarch64-static;;
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i686*) QEMU_BIN=qemu-i386-static;;
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x86_64*) QEMU_BIN=qemu-x86_64-static;;
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GCP*) SUBPLATFORM=${PLATFORM%-*}; QEMU_BIN=qemu-x86_64-static;;
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*) die "$PROGNAME: invalid platform!";;
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esac
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# This is an aweful hack since the script isn't using privesc
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# mechanisms selectively. This is a TODO item.
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if [ "$(id -u)" -ne 0 ]; then
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die "need root perms to continue, exiting."
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fi
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#
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# Check for required binaries.
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#
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# If the arch wasn't set let's bail out now, nothing else in this
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# script will work without knowing what we're trying to build for.
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if [ -z "$XBPS_TARGET_ARCH" ]; then
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echo "$PROGNAME: arch was not set!"
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usage; exit 1
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fi
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# This select maps the architectures to the appropriate QEMU binaries
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# since this mapping isn't something that can just be subbed in for
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# easily.
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case "$XBPS_TARGET_ARCH" in
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i686*) QEMU_BIN=qemu-i386-static ;;
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x86_64*) QEMU_BIN=qemu-x86_64-static ;;
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armv*) QEMU_BIN=qemu-arm-static ;;
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aarch64*) QEMU_BIN=qemu-aarch64-static ;;
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mipsel*) QEMU_BIN=qemu-mipsel-static ;;
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*) die "Unknown target architecture" ;;
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esac
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# If the repository hasn't already been set, we set it to a sane value
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# here. These should all resolve even if they won't have the
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# appropriate repodata files for the selected architecture.
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: "${XBPS_REPOSITORY:=--repository=http://repo.voidlinux.eu/current \
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--repository=http://repo.voidlinux.eu/current/musl \
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--repository=http://repo.voidlinux.eu/current/aarch64}"
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# The package artifacts are cacheable, but they need to be isolated
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# from the host cache.
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: "${XBPS_CACHEDIR:=--cachedir=$PWD/xbps-cache/${XBPS_TARGET_ARCH}}"
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# The following binaries are required to proceed
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for f in chroot tar xbps-install xbps-reconfigure xbps-query; do
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if ! $f --version >/dev/null 2>&1; then
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if ! which $f >/dev/null ; then
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die "$f binary is missing in your system, exiting."
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fi
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done
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# For builds that do not match the host architecture, the correct qemu
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# binary will also be required.
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if ! $QEMU_BIN -version >/dev/null 2>&1; then
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die "$QEMU_BIN binary is missing in your system, exiting."
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fi
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#
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# Check if package base-system is available.
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#
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# We need to operate on a tempdir, if this fails to create, it is
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# absolutely crucial to bail out so that we don't hose the system that
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# is running the script.
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ROOTFS=$(mktemp -d) || die "failed to create tempdir, exiting..."
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# This maintains the chain of trust, the keys in the repo are known to
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# be good and so we copy those. Why don't we just use the ones on the
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# host system? That's a good point, but there's no promise that the
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# system running the script is Void, or that those keys haven't been
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# tampered with. Its much easier to use these since the will always
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# exist.
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mkdir -p "$ROOTFS/var/db/xbps/keys"
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cp keys/*.plist "$ROOTFS/var/db/xbps/keys"
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# This sets up files that are important for XBPS to work on the new
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# filesystem. It does not actually install anything.
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run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $ROOTFS"
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run_cmd_target "xbps-query -R -r $ROOTFS $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -ppkgver $PKGBASE"
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# Later scripts expect the permissions on / to be the canonical 755,
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# so we set this here.
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chmod 755 "$ROOTFS"
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case "$PLATFORM" in
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i686*|x86_64*) PKGS="${PKGBASE}" ;;
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*) PKGS="${PKGBASE} ${SUBPLATFORM}-base" ;;
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esac
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[ -n "$EXTRA_PKGS" ] && PKGS="${PKGS} ${EXTRA_PKGS}"
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# The pseudofs mountpoints are needed for the qemu support in cases
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# where we are running things that aren't natively executable.
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mount_pseudofs
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#
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# Install base-system to the ROOTFS directory.
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#
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run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $ROOTFS -y ${PKGS}"
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# With everything setup, we can now run the install to load the
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# base-voidstrap package into the rootfs. This will not produce a
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# bootable system but will instead produce a base component that can
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# be quickly expanded to perform other actions on.
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run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $ROOTFS -y base-voidstrap"
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# Enable en_US.UTF-8 locale and generate it into the target ROOTFS.
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# This is a bit of a hack since some glibc stuff doesn't really work
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# correctly without a locale being generated. While some could argue
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# that this is an arbitrary or naive choice to enable the en_US
|
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# locale, most people using Void are able to work with the English
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# language at least enough to enable thier preferred locale. If this
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# truly becomes an issue in the future this hack can be revisited.
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if [ -e "$ROOTFS/etc/default/libc-locales" ]; then
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LOCALE=en_US.UTF-8
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sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i "$ROOTFS/etc/default/libc-locales"
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fi
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#
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# Reconfigure packages for target architecture: must be reconfigured
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# thru the qemu user mode binary.
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#
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if [ -n "${_ARCH}" ]; then
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info_msg "Reconfiguring packages for ${_ARCH} ..."
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case "$PLATFORM" in
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i686*|x86_64*|GCP*)
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run_cmd "XBPS_ARCH=${PLATFORM} xbps-reconfigure -r $ROOTFS base-files"
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;;
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*)
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register_binfmt
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run_cmd "xbps-reconfigure -r $ROOTFS base-files"
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run_cmd "chroot $ROOTFS env -i xbps-reconfigure -f base-files"
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rmdir "$ROOTFS/usr/lib32" 2>/dev/null
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rm -f "$ROOTFS/lib32" "$ROOTFS/lib64" "$ROOTFS/usr/lib64"
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;;
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esac
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run_cmd "chroot $ROOTFS xbps-reconfigure -a"
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fi
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# The reconfigure step needs to execute code that's been compiled for
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# the target architecture. Since the target isn't garanteed to be the
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# same as the host, this needs to be done via qemu.
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info_msg "Reconfiguring packages for ${XBPS_TARGET_ARCH} ..."
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case "$XBPS_TARGET_ARCH" in
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# TODO: Rather than asserting that x86 code will work, check
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# instead if the system that is hosting this script is the same as
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# the target, using binfmt if it is not.
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i686*|x86_64*)
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run_cmd "XBPS_ARCH=${XBPS_TARGET_ARCH} xbps-reconfigure -r $ROOTFS base-files"
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;;
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*)
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# This case handles configuration of the system when it won't
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# work directly with the host ELF infrastructure. Before
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# continuing its necessary to determine the correct magic
|
||||
# numbers and load them into the kernel so that it will defer
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# to the appropriate interpreter as defined by $QEMU_BIN
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register_binfmt
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#
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# Setup default root password.
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#
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run_cmd "chroot $ROOTFS sh -c 'echo root:voidlinux | chpasswd -c SHA512'"
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if [ -n "$POST_HOOK" ]; then
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run_cmd "$POST_HOOK $ROOTFS"
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fi
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# This step sets up enough of the base-files that the chroot
|
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# will work and they can be reconfigured natively. Without
|
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# this step there isn't enough configured for ld to work.
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run_cmd "xbps-reconfigure -r $ROOTFS base-files"
|
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|
||||
# Now running as the target system, this step reconfigures the
|
||||
# base-files completely. Certain things just won't work in
|
||||
# the first pass, so this cleans up any issues that linger.
|
||||
run_cmd "chroot $ROOTFS env -i xbps-reconfigure -f base-files"
|
||||
|
||||
# TODO: determine why these lines are here. What is the harm
|
||||
# in having them and what do they remove. Do they interact
|
||||
# adversely with the alien build support discussed above.
|
||||
rmdir "$ROOTFS/usr/lib32" 2>/dev/null
|
||||
rm -f "$ROOTFS/lib32" "$ROOTFS/lib64" "$ROOTFS/usr/lib64"
|
||||
;;
|
||||
esac
|
||||
|
||||
# Once base-files is configured and functional its possible to
|
||||
# configure the rest of the system.
|
||||
run_cmd "chroot $ROOTFS xbps-reconfigure -a"
|
||||
|
||||
# At this point we're done running things that needed to be done with
|
||||
# the pseudo filesystems to be mounted, so we can clean that up.
|
||||
umount_pseudofs
|
||||
#
|
||||
# Cleanup ROOTFS.
|
||||
#
|
||||
rm -f "$ROOTFS/etc/.pwd.lock" 2>/dev/null
|
||||
|
||||
# Set the default password. Previous versions of this script used a
|
||||
# chroot to do this, but that is unnecessary since chpasswd
|
||||
# understands how to operate on chroots without actually needing to be
|
||||
# chrooted. We also remove the lock file in this step to clean up the
|
||||
# lock on the passwd database, lest it be left in the system and
|
||||
# propogated to other points.
|
||||
echo root:voidlinux | chpasswd -c SHA512 --root "$ROOTFS" || die "Could not set default credentials"
|
||||
rm -f "$ROOTFS/etc/.pwd.lock"
|
||||
|
||||
# The cache isn't that useful since by the time the ROOTFS will be
|
||||
# used it is likely to be out of date. Rather than shipping it around
|
||||
# only for it to be out of date, we remove it now.
|
||||
rm -rf "$ROOTFS/var/cache/*" 2>/dev/null
|
||||
|
||||
#
|
||||
# Generate final tarball.
|
||||
#
|
||||
if [ -n "${_ARCH}" ]; then
|
||||
rm -f "$ROOTFS/usr/bin/$QEMU_BIN"
|
||||
fi
|
||||
# If we needed to copy in a QEMU_BIN executable, that needs to be
|
||||
# removed before packaging up the shiny new ROOTFS. This could be
|
||||
# wrapped in a conditional, but its much easier to just remove the
|
||||
# binary location on the off chance its there.
|
||||
rm -f "$ROOTFS/usr/bin/$QEMU_BIN"
|
||||
|
||||
tarball=void-${PLATFORM}-ROOTFS-$(date '+%Y%m%d').tar.xz
|
||||
# Finally we can compress the tarball, the name will include the
|
||||
# architecture and the date on which the tarball was built.
|
||||
tarball=void-${XBPS_TARGET_ARCH}-ROOTFS-$(date '+%Y%m%d').tar.xz
|
||||
run_cmd "tar -cp --posix --xattrs -C $ROOTFS . | xz -T0 -9 > $tarball "
|
||||
|
||||
# Now that we have the tarball we don't need the rootfs anymore, so we
|
||||
# can get rid of it.
|
||||
rm -rf "$ROOTFS"
|
||||
|
||||
info_msg "Successfully created $tarball ($PLATFORM)"
|
||||
|
||||
# vim: set ts=4 sw=4 et:
|
||||
# Last thing to do before closing out is to let the user know that
|
||||
# this succeeded. This also ensures that there's something visible
|
||||
# that the user can look for at the end of the script, which can make
|
||||
# it easier to see what's going on if something above failed.
|
||||
info_msg "Successfully created $tarball ($XBPS_TARGET_ARCH)"
|
||||
|
|
|
|||
Loading…
Reference in New Issue