Added void-mkrootfs.sh script to generate rootfs tarballs.
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Juan RP
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0c32961490
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#!/bin/sh
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#-
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# Copyright (c) 2013 Juan Romero Pardines.
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# All rights reserved.
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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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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#-
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readonly PROGNAME=$(basename $0)
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readonly ARCH=$(uname -m)
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readonly PKGBASE="base-system"
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trap 'printf "\nInterrupted! exiting...\n"; exit $?' INT TERM HUP
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info_msg() {
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printf "\033[1m$@\n\033[m"
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}
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die() {
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echo "FATAL: $@"
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[ -d "$rootfs" ] && rm -rf $rootfs
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exit 1
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}
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usage() {
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echo "Usage: $PROGNAME [-a raspberrypi]"
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}
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run_cmd() {
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info_msg "Running $@ ..."
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if [ -n "${_ARCH}" ]; then
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eval XBPS_TARGET_ARCH=${_ARCH} "$@" >/dev/null 2>&1
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else
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eval "$@" >/dev/null 2>&1
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fi
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[ $? -ne 0 ] && die "Failed to run $@"
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}
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register_binfmt() {
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if [ "$ARCH" = "${_ARCH}" ]; then
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return 0
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fi
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case "${_ARCH}" in
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armv6l)
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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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cp -f $(which qemu-arm-static) $rootfs/usr/bin || die "failed to copy qemu-arm-static to the rootfs"
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;;
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*)
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die "Unknown target architecture!"
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;;
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esac
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}
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#
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# main()
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#
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while getopts "a:h" opt; do
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case $opt in
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a) TARGET_ARCH="$OPTARG";;
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h) usage; exit 0;;
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esac
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done
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shift $(($OPTIND - 1))
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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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for f in systemd-nspawn xbps-install xbps-reconfigure xbps-query; do
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if ! $f --version >/dev/null 2>&1; then
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die "$f binary is missing in your system, exiting."
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fi
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done
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#
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# Sanitize target arch.
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#
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case "$TARGET_ARCH" in
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raspberrypi) _ARCH=armv6l; QEMU_BIN=qemu-arm-static;;
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*) ;;
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esac
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#
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# Check if package base-system is available.
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#
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run_cmd "xbps-query -R -ppkgver $PKGBASE"
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rootfs=$(mktemp -d || die "FATAL: failed to create tempdir, exiting...")
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chmod 755 $rootfs
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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 "xbps-install -S -r $rootfs -y $PKGBASE"
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#
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# Reconfigure packages for target architecture: must be reconfigured
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# thru the qemu user mode binary.
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#
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if [ -n "$TARGET_ARCH" ]; then
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info_msg "Reconfiguring packages for $TARGET_ARCH ..."
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register_binfmt
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xbps-reconfigure -r $rootfs base-directories
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run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure shadow"
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run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure systemd"
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run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure -a"
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(rm -f $rootfs/lib32; rm -f $rootfs/lib64) >/dev/null 2>&1
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else
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run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure -f systemd"
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fi
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#
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# Setup default root password.
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#
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chroot $rootfs sh -c 'echo "root:voidlinux" | chpasswd -c SHA512'
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#
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# Cleanup rootfs.
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#
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rm -rf $rootfs/dev/* $rootfs/run/* $rootfs/tmp/* $rootfs/tmp/.* 2>/dev/null
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rm -f $rootfs/etc/.pwd.lock 2>/dev/null
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rm -rf $rootfs/var/cache/xbps 2>/dev/null
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#
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# Generate final tarball.
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#
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arch=$ARCH
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if [ -n "$TARGET_ARCH" ]; then
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rm -f $rootfs/usr/bin/qemu-*-static
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arch=$TARGET_ARCH
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fi
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tarball=void-${arch}-rootfs-$(date '+%Y%m%d').tar.xz
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run_cmd "tar cp -C $rootfs . | xz -9 > $tarball"
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rm -rf $rootfs
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info_msg "Successfully created $tarball"
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# vim: set ts=4 sw=4 et:
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