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authorJames Meyer <james.meyer@operamail.com>2012-08-07 20:50:47 (GMT)
committerJames Meyer <james.meyer@operamail.com>2012-08-07 20:50:47 (GMT)
commit57d54c587ee2598e7e90b3149feba6722f020e44 (patch)
tree341690ec6c63c116c68fb6f43bff7e257b1f1610 /abs/extra
parent68988b0cc1a1b3e8d412f9a1b020732f7abf49f0 (diff)
downloadlinhes_pkgbuild-57d54c587ee2598e7e90b3149feba6722f020e44.zip
linhes_pkgbuild-57d54c587ee2598e7e90b3149feba6722f020e44.tar.gz
linhes_pkgbuild-57d54c587ee2598e7e90b3149feba6722f020e44.tar.bz2
syslinux 4.05
Diffstat (limited to 'abs/extra')
-rw-r--r--abs/extra/syslinux/PKGBUILD32
-rw-r--r--abs/extra/syslinux/syslinux-dont-build-dos-windows-targets.patch4
-rw-r--r--abs/extra/syslinux/syslinux-install_update463
-rw-r--r--abs/extra/syslinux/syslinux.cfg79
-rw-r--r--abs/extra/syslinux/syslinux.install13
5 files changed, 580 insertions, 11 deletions
diff --git a/abs/extra/syslinux/PKGBUILD b/abs/extra/syslinux/PKGBUILD
index e2c9eb8..f8bcb92 100644
--- a/abs/extra/syslinux/PKGBUILD
+++ b/abs/extra/syslinux/PKGBUILD
@@ -1,22 +1,30 @@
-# $Id: PKGBUILD 97504 2010-10-30 20:11:46Z tpowa $
+# $Id: PKGBUILD 155387 2012-04-03 08:18:06Z thomas $
# Maintainer: Thomas Bächler <thomas@archlinux.org>
# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
pkgname=syslinux
-pkgver=4.03
-pkgrel=1
+pkgver=4.05
+pkgrel=4
arch=('i686' 'x86_64')
-pkgdesc="Collection of flexible boot loaders that boot from FAT, ext2/3/4 and btrfs filesystems, from CDs and via PXE"
+pkgdesc="Collection of boot loaders that boot from FAT, ext2/3/4 and btrfs filesystems, from CDs and via PXE"
url="http://syslinux.zytor.com/"
license=('GPL2')
depends=('perl' 'glibc')
optdepends=('perl-passwd-md5: For md5pass'
'perl-digest-sha1: For sha1pass'
- 'mtools: For mkdiskimage and syslinux'
+ 'mtools: For mkdiskimage and syslinux support'
)
makedepends=('nasm')
+backup=('boot/syslinux/syslinux.cfg')
+install=syslinux.install
source=(http://www.kernel.org/pub/linux/utils/boot/syslinux/$pkgname-${pkgver}.tar.bz2
- syslinux-dont-build-dos-windows-targets.patch)
+ syslinux-dont-build-dos-windows-targets.patch
+ syslinux.cfg
+ syslinux-install_update)
+md5sums=('82299242418385da1274c9479a778cb2'
+ '1528c376e43f0eaccaa80d8ad1bc13b4'
+ '832595501944fbcabcdc1207f4724fe7'
+ '680750f73dc2e587ac567d057d485813')
build() {
# Do not try to build syslinux with our default LDFLAGS, it will fail
@@ -25,13 +33,19 @@ build() {
# Do not try to build the Windows or DOS installers
patch -p1 -i "$srcdir"/syslinux-dont-build-dos-windows-targets.patch
# Fix FHS manpage path
- sed 's|/usr/man|/usr/share/man|g' -i MCONFIG
+ sed 's|/usr/man|/usr/share/man|g' -i mk/syslinux.mk
make
}
package() {
cd "$srcdir"/$pkgname-${pkgver}
make INSTALLROOT="$pkgdir" AUXDIR=/usr/lib/syslinux install
+
+ # Install the default configuration
+ install -D -m644 "$srcdir"/syslinux.cfg "$pkgdir"/boot/syslinux/syslinux.cfg
+ # Install the installation and update script
+ # This script is maintained at git://gist.github.com/772138.git
+ install -D -m755 "$srcdir"/syslinux-install_update "$pkgdir"/usr/sbin/syslinux-install_update
+ # move extlinux binary to /usr/sbin
+ mv "$pkgdir"/sbin/extlinux "$pkgdir"/usr/sbin/extlinux
}
-md5sums=('a7ca38a0a5786b6efae8fb01a1ae8070'
- '895722a392f3d798a7cc24bc154656f0')
diff --git a/abs/extra/syslinux/syslinux-dont-build-dos-windows-targets.patch b/abs/extra/syslinux/syslinux-dont-build-dos-windows-targets.patch
index 2bac551..2b86ab8 100644
--- a/abs/extra/syslinux/syslinux-dont-build-dos-windows-targets.patch
+++ b/abs/extra/syslinux/syslinux-dont-build-dos-windows-targets.patch
@@ -1,11 +1,11 @@
diff -Nur syslinux-4.02.orig//Makefile syslinux-4.02//Makefile
--- syslinux-4.02.orig//Makefile 2010-07-21 21:33:13.000000000 +0200
+++ syslinux-4.02//Makefile 2010-07-22 11:14:03.325522937 +0200
-@@ -55,7 +55,7 @@
+@@ -54,7 +54,7 @@
# files that depend only on the B phase, but may have to be regenerated
# for "make installer".
BSUBDIRS = codepage com32 lzo core memdisk modules mbr memdump gpxe sample \
-- libinstaller dos win32 win64 dosutil
+- diag libinstaller dos win32 win64 dosutil
+ libinstaller
ITARGET =
IOBJECTS = $(ITARGET) \
diff --git a/abs/extra/syslinux/syslinux-install_update b/abs/extra/syslinux/syslinux-install_update
new file mode 100644
index 0000000..cd1baa5
--- /dev/null
+++ b/abs/extra/syslinux/syslinux-install_update
@@ -0,0 +1,463 @@
+#!/bin/bash
+#
+# Sylinux Installer / Updater Scripts
+# Copyright (C) 2011 Matthew Gyurgyik <pyther@pyther.net>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+#-----------------
+# Exit Codes:
+# 1 - get_boot_device or other function failed
+# 2 - install/update failed
+# 3 - set_active failed
+# 4 - install_mbr failed
+#
+shopt -s nullglob
+
+libpath="/usr/lib/syslinux"
+bootpath="/boot/syslinux"
+extlinux="/usr/sbin/extlinux"
+
+autoupdate_file=/boot/syslinux/SYSLINUX_AUTOUPDATE
+com32_files=(menu.c32 vesamenu.c32 chain.c32 hdt.c32 reboot.c32 poweroff.com)
+pciids_file=/usr/share/hwdata/pci.ids
+
+## Helper functions ##
+# Taken from libui-sh
+# $1 needle
+# $2 set (array) haystack
+check_is_in() {
+ local needle="$1" element
+ shift
+ for element; do
+ [[ $element = $needle ]] && return 0
+ done
+ return 1
+}
+
+# return true when blockdevice is an md raid, otherwise return a unset value
+# get all devices that are part of raid device $1
+device_is_raid() {
+ [[ $1 && -f /proc/mdstat ]] || return 1
+ local devmajor=$(stat -c %t "$1")
+ (( devmajor == 9 ))
+}
+
+mdraid_all_slaves() {
+ local slave slaves
+ for slave in /sys/class/block/${1##*/}/slaves/*; do
+ source "$slave/uevent"
+ slaves="$slaves/dev/$DEVNAME "
+ unset DEVNAME
+ done
+ echo $slaves
+}
+
+# Check /sys/block to see if device is partitioned
+# If we have a partitioned block device (sda1) /sys/block/sda1/dev will not exist
+# However, if we have an unpartitioned block device (sda) /sys/block/sda/dev will exist
+dev_is_part() {
+ # $1 - blockdevice
+ local dev=$1
+
+ # If block device uevent file should be found
+ # If a partition is passed in path shouldn't exist
+ if [[ $dev = *cciss* ]]; then
+ [[ -f /sys/block/cciss\!${dev##*/}/dev ]] && return 1
+ elif [[ $dev = *ida* ]]; then
+ [[ -f /sys/block/ida\!${dev##*/}/dev ]] && return 1
+ else
+ [[ -f /sys/block/${dev##*/}/dev ]] && return 1
+ fi
+
+ return 0
+}
+
+# If EFI PART is present in the first 8 bytes then it must be a GPT disk
+device_is_gpt() {
+ local partsig=$(dd if="$1" skip=64 bs=8 count=1 2>/dev/null)
+ [[ $partsig = "EFI PART" ]]
+}
+
+clear_gpt_attr2() {
+ # $1 - Block Device, no partitions
+ local disk=$1
+
+ # Special Exception for cciss controllers
+ if [[ $disk = *cciss* ]]; then
+ for part in /dev/cciss/${disk##*/}*p*; do
+ local partnum="${part##*[[:alpha:]]}"
+ sgdisk "$disk" --attributes="$partnum":clear:2 &>/dev/null
+ done
+ # Smart 2 Controllers
+ elif [[ $disk = *ida* ]]; then
+ for part in /dev/ida/${disk##*/}*p*; do
+ local partnum="${part##*[[:alpha:]]}"
+ sgdisk "$disk" --attributes="$partnum":clear:2 &>/dev/null
+ done
+ else
+ for part in /sys/block/${disk##*/}/${disk##*/}*; do
+ local partnum="${part##*[[:alpha:]]}"
+ sgdisk "$disk" --attributes="$partnum":clear:2 &>/dev/null
+ done
+ fi
+ return 0
+}
+
+usage() {
+cat << EOF
+usage: $0 options
+
+This script will install or upgrade Syslinux
+
+OPTIONS:
+ -h Show this message
+ -i Install Syslinux
+ -u Update Syslinux
+ -a Set Boot flag on boot partiton
+ -m Install Syslinux MBR
+ -s Updates Syslinux if /boot/syslinux/SYSLINUX_AUTOUPDATE exists
+
+ Arguments Required:
+ -c Chroot install (ex: -c /mnt)
+
+Example Usage: syslinux-install_update.sh -i -a -m (install, set boot flag, install mbr)
+ syslinux-install_update.sh -u (update)
+EOF
+}
+
+# Trys to find the partition that /boot resides on
+# This will either be on /boot or / (root)
+getBoot() {
+ if [[ ! -d "$bootpath" ]]; then
+ echo "Could not find $bootpath"
+ echo "Is boot mounted? Is Syslinux installed?"
+ exit 1
+ fi
+
+ syslinux_fs=(ext2 ext3 ext4 btrfs vfat)
+
+ # Use DATA from findmnt see rc.sysint for more info
+ if [[ -f /proc/self/mountinfo ]]; then
+ read rootdev rootfs < <(findmnt -run -t noautofs -o SOURCE,FSTYPE "$CHROOT/")
+ read bootdev bootfs < <(findmnt -run -t noautofs -o SOURCE,FSTYPE "$CHROOT/boot")
+ else
+ echo "Could not find /proc/self/mountinfo"
+ echo "Are you running a kernel greater than 2.6.24?"
+ exit 1
+ fi
+
+ if [[ $bootfs ]]; then
+ if ! check_is_in "$bootfs" "${syslinux_fs[@]}"; then
+ echo "/boot file system is not supported by Syslinux"
+ exit 1
+ fi
+ boot="boot"
+ bootpart="$bootdev"
+ elif [[ $rootfs ]]; then
+ if ! check_is_in "$rootfs" "${syslinux_fs[@]}"; then
+ echo "/ (root) file system is not supported by Syslinux"
+ exit 1
+ fi
+ boot="root"
+ bootpart="$rootdev"
+ else
+ echo "Could not find filesystem on / (root) or /boot."
+ exit 1
+ fi
+}
+
+# We store the partition table type either gpt or mbr in var ptb
+# In rare cases a user could have one raid disk using mbr and another using gpt
+# In such cases we accept that the output may be incomplete
+
+# Calls get_ptb() for $bootpart or for all device in RAID
+declare -A bootdevs
+get_boot_devices() {
+ if device_is_raid "$bootpart"; then
+ slaves=$(mdraid_all_slaves "$bootpart")
+
+ for slave in ${slaves[@]}; do
+ local disk="${slave%%[[:digit:]]*}"
+ device_is_gpt "$disk" && local ptb="GPT" || local ptb="MBR"
+ bootdevs[$slave]="$ptb"
+ done
+ else
+ local disk="${bootpart%%[[:digit:]]*}"
+ device_is_gpt "$disk" && local ptb="GPT" || local ptb="MBR"
+ bootdevs[$bootpart]="$ptb"
+ fi
+}
+
+# Function Assumes the boot partition should be marked as active
+# All other partitions should not have the boot flag set
+set_active() {
+ # If any bootdev is a block device without partitions bail
+ # we want to set the boot flag on partitioned disk
+ for dev in "${!bootdevs[@]}"; do
+ dev_is_part $dev || { echo "$dev - is a block device. Aborting set_active!"; return 1; }
+ done
+
+ # Clear BIOS Bootable Legacy Attribute for GPT drives
+ # In rare cases where a RAID device has slaves on the same block device
+ # Attribute 2 will be cleared for each partition multiple times
+ for dev in "${!bootdevs[@]}"; do
+ local ptb="${bootdevs[$dev]}"
+ if [[ "$ptb" = GPT ]]; then
+ local disk="${dev%%[[:digit:]]*}" #ex: /dev/sda
+ clear_gpt_attr2 "$disk"
+ fi
+ done
+
+ # Set the boot flag on bootdevs (generated from get_boot_devices)
+ for part in "${!bootdevs[@]}"; do
+ local ptb="${bootdevs[$part]}"
+ local partnum="${part##*[[:alpha:]]}"
+ case "$part" in
+ *[[:digit:]]p[[:digit:]]*)
+ local disk="${part%%p$partnum}" # get everything before p1
+ ;;
+ *)
+ local disk="${part%%[[:digit:]]*}"
+ ;;
+ esac
+
+ if [[ "$ptb" = MBR ]]; then
+ if sfdisk "$disk" -A "$partnum" &>/dev/null; then
+ echo "Boot Flag Set - $part"
+ else
+ echo "FAILED to Set the boot flag on $part"
+ exit 3
+ fi
+ elif [[ "$ptb" = GPT ]]; then
+ if sgdisk "$disk" --attributes="$partnum":set:2 &>/dev/null; then
+ echo "Attribute Legacy Bios Bootable Set - $part"
+ else
+ echo "FAILED to set attribute Legacy BIOS Bootable on $part"
+ exit 3
+ fi
+ fi
+ done
+ return 0
+}
+
+install_mbr() {
+ # If any bootdev is a block device without partitions bail
+ # we want to install the mbr to a partitioned disk
+ for dev in "${!bootdevs[@]}"; do
+ dev_is_part "$dev" || { echo "$dev - is a block device. Aborting MBR install"; return 1; }
+ done
+
+ for part in "${!bootdevs[@]}"; do
+ local partnum="${part##*[[:alpha:]]}"
+ case "$part" in
+ *[[:digit:]]p[[:digit:]]*)
+ local disk="${part%%p$partnum}" # get everything before p1
+ ;;
+ *)
+ local disk="${part%%[[:digit:]]*}"
+ ;;
+ esac
+ local ptb="${bootdevs[$part]}"
+
+ # We want to install to the root of the block device
+ # If the device is a partition - ABORT!
+ dev_is_part "$disk" && \
+ { echo "ABORT! MBR installation to partition ($disk)!"; exit 4;}
+
+ if [[ "$ptb" = MBR ]]; then
+ mbrfile="$libpath/mbr.bin"
+ elif [[ "$ptb" = GPT ]]; then
+ mbrfile="$libpath/gptmbr.bin"
+ fi
+
+ if dd bs=440 count=1 conv=notrunc if="$mbrfile" of="$disk" &> /dev/null; then
+ echo "Installed MBR ($mbrfile) to $disk"
+ else
+ echo "Error Installing MBR ($mbrfile) to $disk"
+ exit 4
+ fi
+ done
+ return 0
+}
+
+_install() {
+ # Copy files to /boot
+ for file in "${com32_files[@]}"; do
+ # Symlink files even if links exist
+ if [[ "$boot" = root ]]; then
+ ln -s "${libpath#$CHROOT}/$file" "$bootpath/$file" &> /dev/null
+ elif [[ "$boot" = boot ]]; then
+ cp "$libpath/$file" "$bootpath/$file"
+ fi
+ done
+
+ # Copy / Symlink pci.ids if we copy the com32 module and if pci.ids exists in the FS
+ if check_is_in "hdt.c32" "${com32_files[@]}" && [[ -f $pciids_file ]]; then
+ if [[ "$boot" = root ]]; then
+ ln -s "$pciids_file" "$bootpath/pci.ids" &> /dev/null
+ elif [[ "$boot" = boot ]]; then
+ cp "$pciids_file" "$bootpath/pci.ids" &> /dev/null
+ fi
+ fi
+
+ if device_is_raid "$bootpart"; then
+ echo "Detected RAID on /boot - installing Syslinux with --raid"
+ "$extlinux" --install "$bootpath" -r > /dev/null 2>&1
+ else
+ "$extlinux" --install "$bootpath" > /dev/null 2>&1
+ fi
+
+ if (( $? )); then
+ echo "Syslinux install failed"
+ exit 2
+ else
+ echo "Syslinux install successful"
+ fi
+
+ touch "$CHROOT/$autoupdate_file"
+}
+
+update() {
+ # Update any com and c32 files in /boot
+ if [[ "$boot" = boot ]]; then
+ for file in "$bootpath"/*.{c32,com}; do
+ file=$(basename "$file")
+ cp "$libpath/$file" "$bootpath/$file" &> /dev/null
+ done
+ if [[ -f "$bootpath/pci.ids" ]]; then
+ cp "$pciids_file" "$bootpath/pci.ids" &> /dev/null
+ fi
+ fi
+
+ if device_is_raid $bootpart; then
+ echo "Detected RAID on /boot - installing Syslinux with --raid"
+ "$extlinux" --update "$bootpath" -r &> /dev/null
+ else
+ "$extlinux" --update "$bootpath" &> /dev/null
+ fi
+
+ if (($?)); then
+ echo "Syslinux update failed"
+ exit 2
+ else
+ echo "Syslinux update successful"
+ fi
+}
+
+if (( $# == 0 )); then
+ usage
+ exit 1
+fi
+
+while getopts "c:uihmas" opt; do
+ case $opt in
+ c)
+ CHROOT=$(readlink -e "$OPTARG")
+ if [[ -z $CHROOT ]]; then
+ echo "error: chroot path ``$OPTARG does not exist";
+ exit 1
+ fi
+ ;;
+ h)
+ USAGE="True"
+ ;;
+ i)
+ INSTALL="True"
+ ;;
+ u)
+ UPDATE="True"
+ ;;
+ m)
+ MBR="True"
+ ;;
+ a)
+ SET_ACTIVE="True"
+ ;;
+ s)
+ # If AUTOUPDATE_FILE does not exist exit the script
+ if [[ -f $autoupdate_file ]]; then
+ UPDATE="True"
+ else
+ exit 0
+ fi
+ ;;
+ *)
+ usage
+ exit 1
+ ;;
+ esac
+done
+
+if [[ $USAGE ]]; then
+ usage
+ exit 0
+fi
+
+# Make sure only root can run our script
+if (( $(id -u) != 0 )); then
+ echo "This script must be run as root" 1>&2
+ exit 1
+fi
+
+# Display Usage Information if both Install and Update are passed
+if [[ $INSTALL && $UPDATE ]]; then
+ usage
+ exit 1
+fi
+
+# If a chroot dir is path set variables to reflect chroot
+if [[ "$CHROOT" ]]; then
+ libpath="$CHROOT$libpath"
+ bootpath="$CHROOT$bootpath"
+ extlinux="$CHROOT$extlinux"
+fi
+
+# Exit if no /boot path exists
+if ( f=("$bootpath"/*); (( ! ${#f[@]} )) ); then
+ echo "Error: $bootpath is empty!"
+ echo "Is /boot mounted?"
+ exit 1
+fi
+
+# Get the boot device if any of these options are passed
+if [[ $INSTALL || $UPDATE || $SET_ACTIVE || $MBR ]]; then
+ getBoot
+fi
+
+# Install or Update
+if [[ $INSTALL ]]; then
+ _install || exit
+elif [[ $UPDATE ]]; then
+ update || exit
+fi
+
+
+# SET_ACTIVE and MBR
+if [[ $SET_ACTIVE ]] || [[ $MBR ]]; then
+ get_boot_devices
+
+ if [[ $SET_ACTIVE ]]; then
+ set_active || exit
+ fi
+
+ if [[ $MBR ]]; then
+ install_mbr || exit
+ fi
+fi
+
+exit 0
+
+# vim: set et sw=4:
diff --git a/abs/extra/syslinux/syslinux.cfg b/abs/extra/syslinux/syslinux.cfg
new file mode 100644
index 0000000..5a588f5
--- /dev/null
+++ b/abs/extra/syslinux/syslinux.cfg
@@ -0,0 +1,79 @@
+# Config file for Syslinux -
+# /boot/syslinux/syslinux.cfg
+#
+# Comboot modules:
+# * menu.c32 - provides a text menu
+# * vesamenu.c32 - provides a graphical menu
+# * chain.c32 - chainload MBRs, partition boot sectors, Windows bootloaders
+# * hdt.c32 - hardware detection tool
+# * reboot.c32 - reboots the system
+# * poweroff.com - shutdown the system
+#
+# To Use: Copy the respective files from /usr/lib/syslinux to /boot/syslinux.
+# If /usr and /boot are on the same file system, symlink the files instead
+# of copying them.
+#
+# If you do not use a menu, a 'boot:' prompt will be shown and the system
+# will boot automatically after 5 seconds.
+#
+# Please review the wiki: https://wiki.archlinux.org/index.php/Syslinux
+# The wiki provides further configuration examples
+
+DEFAULT arch
+PROMPT 0 # Set to 1 if you always want to display the boot: prompt
+TIMEOUT 50
+# You can create syslinux keymaps with the keytab-lilo tool
+#KBDMAP de.ktl
+
+# Menu Configuration
+# Either menu.c32 or vesamenu32.c32 must be copied to /boot/syslinux
+UI menu.c32
+#UI vesamenu.c32
+
+# Refer to http://syslinux.zytor.com/wiki/index.php/Doc/menu
+MENU TITLE Arch Linux
+#MENU BACKGROUND splash.png
+MENU COLOR border 30;44 #40ffffff #a0000000 std
+MENU COLOR title 1;36;44 #9033ccff #a0000000 std
+MENU COLOR sel 7;37;40 #e0ffffff #20ffffff all
+MENU COLOR unsel 37;44 #50ffffff #a0000000 std
+MENU COLOR help 37;40 #c0ffffff #a0000000 std
+MENU COLOR timeout_msg 37;40 #80ffffff #00000000 std
+MENU COLOR timeout 1;37;40 #c0ffffff #00000000 std
+MENU COLOR msg07 37;40 #90ffffff #a0000000 std
+MENU COLOR tabmsg 31;40 #30ffffff #00000000 std
+
+# boot sections follow
+#
+# TIP: If you want a 1024x768 framebuffer, add "vga=773" to your kernel line.
+#
+#-*
+
+LABEL arch
+ MENU LABEL Arch Linux
+ LINUX ../vmlinuz-linux
+ APPEND root=/dev/sda3 ro
+ INITRD ../initramfs-linux.img
+
+LABEL archfallback
+ MENU LABEL Arch Linux Fallback
+ LINUX ../vmlinuz-linux
+ APPEND root=/dev/sda3 ro
+ INITRD ../initramfs-linux-fallback.img
+
+#LABEL windows
+# MENU LABEL Windows
+# COM32 chain.c32
+# APPEND hd0 1
+
+LABEL hdt
+ MENU LABEL HDT (Hardware Detection Tool)
+ COM32 hdt.c32
+
+LABEL reboot
+ MENU LABEL Reboot
+ COM32 reboot.c32
+
+LABEL off
+ MENU LABEL Power Off
+ COMBOOT poweroff.com
diff --git a/abs/extra/syslinux/syslinux.install b/abs/extra/syslinux/syslinux.install
new file mode 100644
index 0000000..0dc0ece
--- /dev/null
+++ b/abs/extra/syslinux/syslinux.install
@@ -0,0 +1,13 @@
+post_install() {
+ echo "==> If you want to use syslinux as your bootloader"
+ echo "==> edit /boot/syslinux/syslinux.cfg and run"
+ echo "==> # /usr/sbin/syslinux-install_update -i -a -m"
+ echo "==> to install it."
+}
+
+post_upgrade() {
+ # auto-update syslinux if /boot/syslinux/SYSLINUX_AUTOUPDATE exists
+ /usr/sbin/syslinux-install_update -s
+}
+
+# vim:set ts=2 sw=2 et: