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-rw-r--r--core/syslinux/syslinux-install_update463
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diff --git a/core/syslinux/syslinux-install_update b/core/syslinux/syslinux-install_update
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index cd1baa572..000000000
--- a/core/syslinux/syslinux-install_update
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-#!/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: