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+#!/bin/sh
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+#
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+# vim: set ts=4 sw=4 et:
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+#
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+#-
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+# Copyright (c) 2009-2015 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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+trap "error_out $LINENO $?" INT TERM 0
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+
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+readonly REQUIRED_PKGS="base-files libgcc dash coreutils sed tar gawk syslinux squashfs-tools"
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+readonly INITRAMFS_PKGS="binutils xz device-mapper dracut-network dhclient dialog"
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+readonly PROGNAME=$(basename $0)
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+
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+info_msg() {
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+ printf "\033[1m$@\n\033[m"
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+}
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+die() {
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+ info_msg "ERROR: $@"
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+ error_out 1
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+}
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+print_step() {
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+ CURRENT_STEP=$((CURRENT_STEP+1))
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+ info_msg "[${CURRENT_STEP}/${STEP_COUNT}] $@"
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+}
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+mount_pseudofs() {
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+ for f in sys dev proc; do
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+ mkdir -p $ROOTFS/$f
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+ mount --bind /$f $ROOTFS/$f
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+ done
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+}
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+umount_pseudofs() {
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+ umount -f $ROOTFS/sys >/dev/null 2>&1
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+ umount -f $ROOTFS/dev >/dev/null 2>&1
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+ umount -f $ROOTFS/proc >/dev/null 2>&1
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+}
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+error_out() {
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+ umount_pseudofs
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+ [ -d "$BUILDDIR" -a -z "$KEEP_BUILDDIR" ] && rm -rf "$BUILDDIR"
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+ exit ${1:=0}
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+}
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+
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+usage() {
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+ cat <<_EOF
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+Usage: $PROGNAME [options]
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+
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+Options:
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+ -a <xbps-arch> Set XBPS_ARCH (do not use it unless you know what it is)
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+ -b <system-pkg> Set an alternative base-system package (defaults to base-system).
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+ -r <repo-url> Use this XBPS repository (may be specified multiple times).
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+ -c <cachedir> Use this XBPS cache directory (/var/cache/xbps if unset).
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+ -k <keymap> Default keymap to use (us if unset)
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+ -l <locale> Default locale to use (en_US.UTF-8 if unset).
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+ -i <lz4|gzip|bzip2|xz> Compression type for the initramfs image (lz4 if unset).
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+ -o <file> Output file name for the netboot tarball (auto if unset).
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+
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+ -C "cmdline args" Add additional kernel command line arguments.
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+ -T "title" Modify the bootloader title.
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+ -K Do not remove builddir.
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+
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+The $PROGNAME script generates a network-bootable tarball of Void Linux
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+This *.tar.gz contains only the autoinstaller.
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+_EOF
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+ exit 1
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+}
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+
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+copy_void_keys() {
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+ mkdir -p "$1"/var/db/xbps/keys
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+ cp keys/*.plist "$1"/var/db/xbps/keys
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+}
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+
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+copy_void_conf() {
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+ install -Dm644 data/void-vpkgs.conf "$1"/usr/share/xbps.d/void-virtualpkgs.conf
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+}
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+
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+copy_netmenu_files() {
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+ mkdir -p $1/usr/lib/dracut/modules.d/05netmenu
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+ cp dracut/netmenu/* $1/usr/lib/dracut/modules.d/05netmenu/
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+
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+ # The netmenu can directly launch the manual installer from the initrd
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+ cp installer.sh $1/usr/lib/dracut/modules.d/05netmenu/
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+}
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+
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+copy_autoinstaller_files() {
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+ mkdir -p $1/usr/lib/dracut/modules.d/01autoinstaller
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+ cp dracut/autoinstaller/* $1/usr/lib/dracut/modules.d/01autoinstaller/
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+}
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+
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+install_prereqs() {
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+ copy_void_conf $VOIDHOSTDIR
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+ XBPS_ARCH=$ARCH $XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY \
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+ $XBPS_HOST_CACHEDIR -y ${REQUIRED_PKGS}
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+ [ $? -ne 0 ] && die "Failed to install required software, exiting..."
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+}
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+
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+install_packages() {
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+ copy_void_conf $ROOTFS
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+
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+ XBPS_ARCH=$BASE_ARCH ${XBPS_INSTALL_CMD} -r $ROOTFS \
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+ $XBPS_REPOSITORY $XBPS_CACHEDIR -yn ${PACKAGE_LIST} ${INITRAMFS_PKGS}
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+ [ $? -ne 0 ] && die "Missing required binary packages, exiting..."
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+
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+ mount_pseudofs
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+
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+ LANG=C XBPS_ARCH=$BASE_ARCH ${XBPS_INSTALL_CMD} -U -r $ROOTFS \
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+ $XBPS_REPOSITORY $XBPS_CACHEDIR -y ${PACKAGE_LIST} ${INITRAMFS_PKGS}
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+ [ $? -ne 0 ] && die "Failed to install $PACKAGE_LIST"
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+
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+ xbps-reconfigure -r $ROOTFS -f base-files >/dev/null 2>&1
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+ chroot $ROOTFS env -i xbps-reconfigure -f base-files
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+
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+ # Enable choosen UTF-8 locale and generate it into the target rootfs.
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+ if [ -f $ROOTFS/etc/default/libc-locales ]; then
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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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+ chroot $ROOTFS env -i xbps-reconfigure -a
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+
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+ if [ -x installer.sh ]; then
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+ install -Dm755 installer.sh $ROOTFS/usr/sbin/void-installer
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+ else
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+ install -Dm755 /usr/sbin/void-installer $ROOTFS/usr/sbin/void-installer
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+ fi
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+ # Cleanup and remove useless stuff.
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+ rm -rf $ROOTFS/var/cache/* $ROOTFS/run/* $ROOTFS/var/run/*
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+}
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+
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+copy_include_directory() {
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+ find $INCLUDE_DIRECTORY -mindepth 1 -maxdepth 1 -exec cp -rfpPv {} $ROOTFS/ \;
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+}
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+
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+generate_initramfs() {
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+ local _args
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+
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+ copy_netmenu_files $ROOTFS
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+ copy_autoinstaller_files $ROOTFS
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+ if [ "$BASE_SYSTEM_PKG" = "base-system-systemd" ]; then
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+ _args="--add systemd"
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+ else
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+ _args="--omit systemd"
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+ fi
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+ chroot $ROOTFS env -i /usr/bin/dracut -N --${INITRAMFS_COMPRESSION} \
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+ --add-drivers "ahci" --force-add "autoinstaller netmenu" ${_args} "/boot/initrd" $KERNELVERSION
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+ [ $? -ne 0 ] && die "Failed to generate the initramfs"
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+
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+ mv $ROOTFS/boot/initrd $BOOT_DIR
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+ cp $ROOTFS/boot/vmlinuz-$KERNELVERSION $BOOT_DIR/vmlinuz
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+ chmod 0644 $BOOT_DIR/initrd
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+}
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+
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+generate_pxelinux_boot() {
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+ cp -f $SYSLINUX_DATADIR/pxelinux.0 "$BOOT_DIR"
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+ cp -f $SYSLINUX_DATADIR/ldlinux.c32 "$BOOT_DIR"
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+ cp -f $SYSLINUX_DATADIR/libcom32.c32 "$BOOT_DIR"
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+ cp -f $SYSLINUX_DATADIR/vesamenu.c32 "$BOOT_DIR"
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+ cp -f $SYSLINUX_DATADIR/libutil.c32 "$BOOT_DIR"
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+ cp -f $SYSLINUX_DATADIR/chain.c32 "$BOOT_DIR"
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+ cp -f pxelinux.cfg/pxelinux.cfg.in "$PXELINUX_DIR"/default
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+ cp -f ${SPLASH_IMAGE} "$BOOT_DIR"
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+
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+ sed -i -e "s|@@SPLASHIMAGE@@|$(basename ${SPLASH_IMAGE})|" \
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+ -e "s|@@KERNVER@@|${KERNELVERSION}|" \
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+ -e "s|@@KEYMAP@@|${KEYMAP}|" \
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+ -e "s|@@ARCH@@|$BASE_ARCH|" \
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+ -e "s|@@LOCALE@@|${LOCALE}|" \
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+ -e "s|@@BOOT_TITLE@@|${BOOT_TITLE}|" \
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+ -e "s|@@BOOT_CMDLINE@@|${BOOT_CMDLINE}|" \
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+ $PXELINUX_DIR/default
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+}
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+
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+generate_netboot_tarball() {
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+ cd $IMAGEDIR/tftp
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+ tar -zcvf $CURDIR/$OUTPUT_FILE.tar.gz .
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+ cd $CURDIR
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+}
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+
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+#
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+# main()
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+#
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+while getopts "a:b:r:c:C:T:Kk:l:i:o:p:h" opt; do
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+ case $opt in
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+ a) BASE_ARCH="$OPTARG";;
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+ b) BASE_SYSTEM_PKG="$OPTARG";;
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+ r) XBPS_REPOSITORY="--repository=$OPTARG $XBPS_REPOSITORY";;
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+ c) XBPS_CACHEDIR="--cachedir=$OPTARG";;
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+ K) readonly KEEP_BUILDDIR=1;;
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+ k) KEYMAP="$OPTARG";;
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+ l) LOCALE="$OPTARG";;
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+ i) INITRAMFS_COMPRESSION="$OPTARG";;
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+ o) OUTPUT_FILE="$OPTARG";;
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+ p) PACKAGE_LIST="$OPTARG";;
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+ C) BOOT_CMDLINE="$OPTARG";;
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+ T) BOOT_TITLE="$OPTARG";;
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+ h) usage;;
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+ esac
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+done
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+shift $((OPTIND - 1))
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+
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+XBPS_REPOSITORY="$XBPS_REPOSITORY --repository=http://repo.voidlinux.eu/current --repository=http://repo.voidlinux.eu/current/musl"
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+
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+ARCH=$(xbps-uhelper arch)
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+
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+# Set defaults
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+: ${BASE_ARCH:=$(uname -m)}
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+: ${XBPS_CACHEDIR:=-c $(pwd -P)/xbps-cachedir-${BASE_ARCH}}
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+: ${XBPS_HOST_CACHEDIR:=-c $(pwd -P)/xbps-cachedir-${ARCH}}
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+: ${KEYMAP:=us}
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+: ${LOCALE:=en_US.UTF-8}
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+: ${INITRAMFS_COMPRESSION:=xz}
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+: ${SQUASHFS_COMPRESSION:=xz}
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+: ${BASE_SYSTEM_PKG:=base-system}
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+: ${BOOT_TITLE:="Void Linux"}
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+
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+# Required packages in the image for a working system.
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+PACKAGE_LIST="$BASE_SYSTEM_PKG $PACKAGE_LIST"
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+
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+# Check for root permissions.
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+if [ "$(id -u)" -ne 0 ]; then
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+ die "Must be run as root, exiting..."
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+fi
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+
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+readonly CURDIR="$PWD"
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+
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+ISO_VOLUME="VOID_LIVE"
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+if [ -n "$ROOTDIR" ]; then
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+ BUILDDIR=$(mktemp --tmpdir="$ROOTDIR" -d)
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+else
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+ BUILDDIR=$(mktemp --tmpdir="$(pwd -P)" -d)
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+fi
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+BUILDDIR=$(readlink -f $BUILDDIR)
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+IMAGEDIR="$BUILDDIR/image"
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+ROOTFS="$IMAGEDIR/rootfs"
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+VOIDHOSTDIR="$BUILDDIR/void-host"
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+BOOT_DIR="$IMAGEDIR/tftp"
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+PXELINUX_DIR="$BOOT_DIR/pxelinux.cfg"
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+PXELINUX_CFG="$PXELINUX_DIR/default"
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+CURRENT_STEP=0
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+STEP_COUNT=6
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+[ -n "${INCLUDE_DIRECTORY}" ] && ((STEP_COUNT=STEP_COUNT+1))
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+
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+: ${SYSLINUX_DATADIR:=$VOIDHOSTDIR/usr/share/syslinux}
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+: ${SPLASH_IMAGE:=data/splash.png}
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+: ${XBPS_INSTALL_CMD:=xbps-install}
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+: ${XBPS_REMOVE_CMD:=xbps-remove}
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+: ${XBPS_QUERY_CMD:=xbps-query}
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+: ${XBPS_RINDEX_CMD:=xbps-rindex}
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+: ${XBPS_UHELPER_CMD:=xbps-uhelper}
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+: ${XBPS_RECONFIGURE_CMD:=xbps-reconfigure}
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+
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+mkdir -p $ROOTFS $VOIDHOSTDIR $PXELINUX_DIR
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+
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+print_step "Synchronizing XBPS repository data..."
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+copy_void_keys $ROOTFS
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+copy_void_keys $VOIDHOSTDIR
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+XBPS_ARCH=$BASE_ARCH $XBPS_INSTALL_CMD -r $ROOTFS ${XBPS_REPOSITORY} -S
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+XBPS_ARCH=$ARCH $XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY -S
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+
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+_linux_series=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -x linux|head -1)
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+_kver=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -p pkgver ${_linux_series})
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+KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion ${_kver})
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+
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+: ${OUTPUT_FILE="void-netboot-${BASE_ARCH}-${KERNELVERSION}-$(date +%Y%m%d)"}
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+
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+print_step "Installing software to generate the image: ${REQUIRED_PKGS} ..."
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+install_prereqs
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+
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+mkdir -p "$ROOTFS"/etc
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+[ -s data/motd ] && cp data/motd $ROOTFS/etc
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+[ -s data/issue ] && cp data/issue $ROOTFS/etc
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+
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+print_step "Installing void pkgs into the rootfs: ${PACKAGE_LIST} ..."
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+install_packages
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+
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+print_step "Generating initramfs image ($INITRAMFS_COMPRESSION)..."
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+generate_initramfs
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+
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+print_step "Generating pxelinux support..."
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+generate_pxelinux_boot
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+
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+print_step "Generating netboot tarball..."
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+generate_netboot_tarball
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+
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+info_msg "Created $(readlink -f $CURDIR/$OUTPUT_FILE) ($hsize) successfully."
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Michael Aldridge