#!/bin/bash
#
# Insert a list of installed kernels in a grub config file
# Copyright 2001 Wichert Akkerman <wichert@linux.com>
# Copyright (C) 2007,2008 Free Software Foundation, Inc.
#
# This file 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 3 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
#
# Contributors:
# Jason Thomas <jason@debian.org>
# David B.Harris <dbarclay10@yahoo.ca>
# Marc Haber <mh+debian-packages@zugschlus.de>
# Crispin Flowerday <crispin@zeus.com>
# Abort on errors
set -e
host_os=`uname -s | tr '[A-Z]' '[a-z]'`
abort() {
message=$@
echo >&2
echo -e "$message" >&2
echo >&2
exit 1
}
find_grub_dir ()
{
echo -n "Searching for GRUB installation directory ... " >&2
for d in /boot/grub /boot/boot/grub ; do
if [ -d "$d" ] ; then
grub_dir="$d"
break
fi
done
if [ -z "$grub_dir" ] ; then
abort "No GRUB directory found.\n To create a template run 'mkdir /boot/grub' first.\n To install grub, install it manually or try the 'grub-install' command.\n ### Warning, grub-install is used to change your MBR. ###"
else
echo "found: $grub_dir" >&2
fi
echo $grub_dir
}
# This function was borrowed from grub2/util/update-grub_lib.in
make_system_path_relative_to_its_root ()
{
path=$1
# abort if file doesn't exist
if test -e $path ; then : ;else
return 1
fi
# canonicalize
if path=`readlink -f $path` ; then : ; else
return 1
fi
# if not a directory, climb up to the directory containing it
if test -d $path ; then
dir=$path
else
dir=`echo $path | sed -e "s,/[^/]*$,,g"`
fi
num=`stat -c %d $dir`
# this loop sets $dir to the root directory of the filesystem we're inspecting
while : ; do
parent=`readlink -f $dir/..`
if [ "x`stat -c %d $parent`" = "x$num" ] ; then : ; else
# $parent is another filesystem; we found it.
break
fi
if [ "x$dir" = "x/" ] ; then
# / is our root.
break
fi
dir=$parent
done
# This function never prints trailing slashes (so that its output can be
# appended a slash unconditionally). Each slash in $dir is considered a
# preceding slash, and therefore the root directory is an empty string.
if [ "$dir" = "/" ] ; then
dir=""
fi
echo $path | sed -e "s,^$dir,,g"
}
# The grub installation directory
grub_dir=$(find_grub_dir)
# Full path to the device.map
device_map=$grub_dir/device.map
find_device ()
{
if ! test -e ${device_map} ; then
echo quit | grub --batch --no-floppy --device-map=${device_map} > /dev/null
fi
grub-probe --device-map=${device_map} -t device $1 2> /dev/null
}
# Usage: convert_raid1 os_device
# Checks if os_device is a software raid1.
# If so, converts to first physical device in array.
convert_raid1 ()
{
case $1 in
/dev/md[0-9] | /dev/md/[0-9])
: ;; # Continue
*)
return 1 ;;
esac
[ -x /sbin/mdadm ] || return 1
# Check that the raid device is raid1
raidlevel=$(mdadm -D -b $1 | grep "^ARRAY" | \
sed "s/^.*level=//" | cut -d" " -f1)
[ "$raidlevel" = "raid1" ] || return 1
# Take only the first device that makes up the raid
raiddev=$(mdadm -D $1 | grep -A1 "Number" | grep "dev" \
| sed "s/^.*\(\/dev\/.*\)$/\1/")
[ -n "$raiddev" ] || return 1
echo $raiddev
return 0
}
# Usage: convert os_device
# Convert an OS device to the corresponding GRUB drive.
convert () {
if ! test -e ${device_map} ; then
echo quit | grub --batch --no-floppy --device-map=${device_map} > /dev/null
fi
GRUB_LEGACY_0_BASED_PARTITIONS=1 grub-probe --device-map=${device_map} -t drive -d "$1" 2> /dev/null || {
echo "warning: grub-probe can't find drive for $1." >&2
tmp_map=$(mktemp -t device.map.XXXXXXXX)
grub-mkdevicemap --device-map=${tmp_map} --no-floppy >/dev/null 2>&1 || true
GRUB_LEGACY_0_BASED_PARTITIONS=1 grub-probe --device-map=${tmp_map} -t drive -d "$1" || {
rm -f ${tmp_map}
return 1
}
echo "Please check ${device_map}, you might have to regenerate it with grub-mkdevicemap." >&2
rm -f ${tmp_map}
}
}
# Usage: convert_default os_device
# Convert an OS device to the corresponding GRUB drive.
convert_default () {
# Check if device is software raid1 array
if tmp_dev=$(convert_raid1 $1 2>/dev/null) ; then
: # Use device returned by convert_raid1
else
tmp_dev=$1
fi
convert $tmp_dev
}
## Configuration Options
# Full path to the menu.lst
menu_file_basename=menu.lst
menu_file=$grub_dir/$menu_file_basename
# Full path to the default file
default_file_basename=default
default_file=$grub_dir/$default_file_basename
# the device for the / filesystem
root_device=$(find_device "/")
# loop-AES arranges things so that /dev/loop/X can be our root device, but
# the initrds that Linux uses don't like that.
case ${root_device} in
/dev/loop/*|/dev/loop[0-9])
root_device=`losetup ${root_device} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
;;
esac
# the device for the /boot filesystem
boot_device=$(find_device "/boot")
# where grub looks for the kernels at boot time
kernel_dir=`make_system_path_relative_to_its_root /boot`
# the "-t abstraction" check is a workaround untill #484297 is fixed
if abstraction=`grub-probe -t abstraction --device ${root_device} 2> /dev/null` && [ "$abstraction" = "" ] && \
root_uuid=`grub-probe --device-map=${device_map} --device ${root_device} --target=fs_uuid 2> /dev/null` && \
test -e "/dev/disk/by-uuid/${root_uuid}" ; then
linux_root_device=UUID=${root_uuid}
else
linux_root_device=${root_device}
fi
# Default kernel options, overidden by the kopt statement in the menufile.
kopt="root=$linux_root_device ro"
# Title
title=$(lsb_release --short --description 2>/dev/null) || title="Ubuntu"
# should update-grub remember the default entry
updatedefaultentry="false"
# Drive(in GRUB terms) where the kernel is located. Overridden by the
# groot statement in menufile.
grub_root_device=$(convert_default "$boot_device")
# should grub create the alternative boot options in the menu
alternative="true"
# should grub lock the alternative boot options in the menu
lockalternative="false"
# additional options to use with the default boot option, but not with the
# alternatives
defoptions="quiet splash"
# should grub lock the old kernels
lockold="false"
# Xen hypervisor options to use with the default Xen boot option
xenhopt=""
# Xen Linux kernel options to use with the default Xen boot option
xenkopt="console=tty0"
# options to use with the alternative boot options
altoptions="(recovery mode) single"
# controls howmany kernels are listed in the config file,
# this does not include the alternative kernels
howmany="all"
# should grub create a memtest86 entry
memtest86="true"
# should grub add "savedefault" to default boot options
savedefault="false"
# stores the command line arguments
command_line_arguments=$1
# does this version of grub support the quiet option?
if [ -f ${grub_dir}/installed-version ] && dpkg --compare-versions `cat ${grub_dir}/installed-version` ge 0.97-11ubuntu4; then
supports_quiet=true
else
supports_quiet=false
fi
# read user configuration
if test -f "/etc/default/grub" ; then
. /etc/default/grub
fi
# Default options to use in a new config file. This will only be used if $menu_file
# doesn't already exist. Only edit the lines between the two "EOF"s. The others are
# part of the script.
newtemplate=$(tempfile)
cat > "$newtemplate" <<EOF
# $menu_file_basename - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-legacy-doc/.
## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not change this entry to 'saved' or your
# array will desync and will not let you boot your system.
default 0
## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 5
# Pretty colours
color cyan/blue white/blue
## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 \$1\$gLhU0/\$aW78kHK1QfV3P2b2znUoe/
# password topsecret
#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#
#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
EOF
## End Configuration Options
echo -n "Searching for default file ... " >&2
if [ -f "$default_file" ] ; then
echo "found: $default_file" >&2
else
echo "Generating $default_file file and setting the default boot entry to 0" >&2
if [ -f /usr/lib/grub-legacy/grub-set-default ] ; then
/usr/lib/grub-legacy/grub-set-default 0
else
grub-set-default 0
fi
fi
# Make sure we use the standard sorting order
LC_COLLATE=C
# Magic markers we use
start="### BEGIN AUTOMAGIC KERNELS LIST"
end="### END DEBIAN AUTOMAGIC KERNELS LIST"
startopt="## ## Start Default Options ##"
endopt="## ## End Default Options ##"
# Extract options from config file
ExtractMenuOpt()
{
opt=$1
sed -ne "/^$start\$/,/^$end\$/ {
/^$startopt\$/,/^$endopt\$/ {
/^# $opt=/ {
s/^# $opt=\(.*\)\$/\1/
p
}
}
}" $menu
}
GetMenuOpts()
{
opt=$1
sed -ne "/^$start\$/,/^$end\$/ {
/^$startopt\$/,/^$endopt\$/ {
/^# $opt=/ {
p
}
}
}" $menu
}
ExtractMenuOpts()
{
opt=$1
GetMenuOpts $opt | sed "s/^# $opt=\(.*\)\$/\1=\"\2\"/"
}
GetMenuOpt()
{
opt=$1
value=$2
[ -z "$(GetMenuOpts "$opt")" ] || value=$(ExtractMenuOpt "$opt")
echo $value
}
# Compares two version strings A and B
# Returns -1 if A<B
# 0 if A==B
# 1 if A>B
# This compares version numbers of the form
# 2.4.14.2 > 2.4.14
# 2.4.14random = 2.4.14-random > 2.4.14-ac10 > 2.4.14 > 2.4.14-pre2 >
# 2.4.14-pre1 > 2.4.13-ac99
CompareVersions()
{
local sedexp="s,.*/vmlinu[zx]-,,g;s/[._-]\(pre\|rc\|test\|git\|trunk\)/~\1/g"
local a=`echo $1 | sed -e "$sedexp"`
local b=`echo $2 | sed -e "$sedexp"`
if [ "$a" = "$b" ] ; then
echo 0
elif dpkg --compare-versions "$a" gt "$b" ; then
echo 1
else
echo -1
fi
}
# looks in the directory specified for an initrd image with the version specified
FindInitrdName()
{
# strip trailing slashes
directory=$(echo $1 | sed -e 's#/*$##')
version=$2
# initrd
# initrd.img
# initrd-lvm
# .*.gz
initrdName=""
names="initrd initrd.img initrd-lvm"
compressed="gz"
for n in $names ; do
# make sure we haven't already found it
if [ -z "$initrdName" ] ; then
if [ -f "$directory/$n$version" ] ; then
initrdName="$n$version"
break
else
for c in $compressed ; do
if [ -f "$directory/$n$version.$c" ] ; then
initrdName="$n$version.$c"
break
fi
done
fi
else
break
fi
done
# return the result
echo $initrdName
}
FindXenHypervisorVersions ()
{
version=$1
if [ -f "/var/lib/linux-image-$version/xen-versions" ]; then
ret="$(cat /var/lib/linux-image-$version/xen-versions)"
fi
echo $ret
}
get_kernel_opt()
{
kernel_version=$1
version=$(echo $kernel_version | sed 's/^[^0-9]*//')
version=$(echo $version | sed 's/[-\+\.]/_/g')
if [ -n "$version" ] ; then
while [ -n "$version" ] ; do
currentOpt="$(eval "echo \${kopt_$version}")"
if [ -n "$currentOpt" ] ; then
break
fi
version=$(echo $version | sed 's/_\?[^_]*$//')
done
fi
if [ -z "$currentOpt" ] ; then
currentOpt=$kopt
fi
echo $currentOpt
}
write_kernel_entry()
{
local kernel_version; kernel_version=$1; shift
local recovery_desc; recovery_desc=$1; shift
local lock_alternative; lock_alternative=$1; shift
local grub_root_device; grub_root_device=$1; shift
local kernel; kernel=$1; shift
local kernel_options; kernel_options=$1; shift
local recovery_suffix; recovery_suffix=$1; shift
local initrd; initrd=$1; shift
local savedefault; savedefault=$1; shift
local lockold; lockold=$1; shift
local hypervisor
if [ -n "$1" ]; then
# Hypervisor.
hypervisor=$1; shift
local hypervisor_image; hypervisor_image=$1; shift
local hypervisor_version; hypervisor_version=$1; shift
local hypervisor_options; hypervisor_options=$1; shift
fi
local grub_root_type
case "$grub_root_device" in
[^A-Za-z0-9]*) grub_root_type='root' ;;
*) grub_root_type='uuid' ;;
esac
echo -n "title " >> $buffer
if [ -n "$hypervisor" ]; then
echo -n "$hypervisor $hypervisor_version / " >> $buffer
fi
echo -n "$title" >> $buffer
if [ -n "$kernel_version" ]; then
echo -n ", " >> $buffer
# memtest86 is not strictly a kernel
if ! echo "$kernel_version" | grep -q ^memtest86; then
echo -n "kernel " >> $buffer
fi
echo -n "$kernel_version" >> $buffer
fi
if [ -n "$recovery_desc" ]; then
echo -n " $recovery_desc" >> $buffer
fi
echo >> $buffer
# lock the alternative options
if test x"$lock_alternative" = x"true" ; then
echo "lock" >> $buffer
fi
# lock the old entries
if test x"$lockold" = x"true" ; then
echo "lock" >> $buffer
fi
echo "$grub_root_type $grub_root_device" >> $buffer
echo -n "kernel " >> $buffer
if [ -n "$hypervisor" ]; then
echo -n "$hypervisor_image" >> $buffer
if [ -n "$hypervisor_options" ]; then
echo -n " $hypervisor_options" >> $buffer
fi
echo >> $buffer
echo -n "module " >> $buffer
fi
echo -n "$kernel" >> $buffer
if [ -n "$kernel_options" ]; then
echo -n " $kernel_options" >> $buffer
fi
if [ -n "$recovery_desc" ]; then
echo -n " $recovery_suffix" >> $buffer
fi
echo >> $buffer
if [ -n "$initrd" ]; then
if [ -n "$hypervisor" ]; then
echo -n "module " >> $buffer
else
echo -n "initrd " >> $buffer
fi
echo "$initrd" >> $buffer
fi
if [ ! -n "$recovery_desc" -a x"$supports_quiet" = x"true" ]; then
echo "quiet" >> $buffer
fi
if test x"$savedefault" = x"true" ; then
echo "savedefault" >> $buffer
fi
echo >> $buffer
}
echo -n "Testing for an existing GRUB $menu_file_basename file ... " >&2
# Test if our menu file exists
if [ -f "$menu_file" ] ; then
menu="$menu_file"
rm -f $newtemplate
unset newtemplate
echo "found: $menu_file" >&2
cp -f "$menu_file" "$menu_file~"
else
# if not ask user if they want us to create one
menu="$menu_file"
echo >&2
echo >&2
if [ "-y" = "$command_line_arguments" ] ; then
echo "Warning: ignoring deprecated -y option." >&2
fi
echo >&2
echo "Generating $menu_file" >&2
cat "$newtemplate" > $menu_file
rm -f $newtemplate
unset newtemplate
fi
# Extract the kernel options to use
kopt=$(GetMenuOpt "kopt" "$kopt")
# Set the kernel 2.6 option only for fresh install
test -z "$(GetMenuOpt "kopt" "")" && kopt_2_6="root=$linux_root_device ro"
# Extract options for specific kernels
opts="$(ExtractMenuOpts "\(kopt_[[:alnum:]_]\+\)")"
test -z "$opts" || eval "$opts"
CustomKopts=$(GetMenuOpts "\(kopt_[[:alnum:]_]\+\)")
# Extract the grub root
grub_root_device=$(GetMenuOpt "groot" "$grub_root_device")
# Extract the old recovery value
alternative=$(GetMenuOpt "recovery" "$alternative")
# Extract the alternative value
alternative=$(GetMenuOpt "alternative" "$alternative")
# Extract the lockalternative value
lockalternative=$(GetMenuOpt "lockalternative" "$lockalternative")
# Extract the additional default options
defoptions=$(GetMenuOpt "defoptions" "$defoptions")
# Extract the lockold value
lockold=$(GetMenuOpt "lockold" "$lockold")
# Extract Xen hypervisor options
xenhopt=$(GetMenuOpt "xenhopt" "$xenhopt")
# Extract Xen Linux kernel options
xenkopt=$(GetMenuOpt "xenkopt" "$xenkopt")
# Extract the howmany value
howmany=$(GetMenuOpt "howmany" "$howmany")
# Extract the memtest86 value
memtest86=$(GetMenuOpt "memtest86" "$memtest86")
# Extract the updatedefaultentry option
updatedefaultentry=$(GetMenuOpt "updatedefaultentry" "$updatedefaultentry")
# Extract the savedefault option
savedefault=$(GetMenuOpt "savedefault" "$savedefault")
# Generate the menu options we want to insert
buffer=$(tempfile)
echo $start >> $buffer
echo "## lines between the AUTOMAGIC KERNELS LIST markers will be modified" >> $buffer
echo "## by the debian update-grub script except for the default options below" >> $buffer
echo >> $buffer
echo "## DO NOT UNCOMMENT THEM, Just edit them to your needs" >> $buffer
echo >> $buffer
echo "## ## Start Default Options ##" >> $buffer
echo "## default kernel options" >> $buffer
echo "## default kernel options for automagic boot options" >> $buffer
echo "## If you want special options for specific kernels use kopt_x_y_z" >> $buffer
echo "## where x.y.z is kernel version. Minor versions can be omitted." >> $buffer
echo "## e.g. kopt=root=/dev/hda1 ro" >> $buffer
echo "## kopt_2_6_8=root=/dev/hdc1 ro" >> $buffer
echo "## kopt_2_6_8_2_686=root=/dev/hdc2 ro" >> $buffer
echo "# kopt=$kopt" >> $buffer
if [ -n "$CustomKopts" ] ; then
echo "$CustomKopts" >> $buffer
elif [ -n "$kopt_2_6" ] && [ "$kopt" != "$kopt_2_6" ]; then
echo "# kopt_2_6=$kopt_2_6" >> $buffer
fi
echo >> $buffer
echo "## default grub root device" >> $buffer
echo "## e.g. groot=(hd0,0)" >> $buffer
echo "# groot=$grub_root_device" >> $buffer
echo >> $buffer
echo "## should update-grub create alternative automagic boot options" >> $buffer
echo "## e.g. alternative=true" >> $buffer
echo "## alternative=false" >> $buffer
echo "# alternative=$alternative" >> $buffer
echo >> $buffer
echo "## should update-grub lock alternative automagic boot options" >> $buffer
echo "## e.g. lockalternative=true" >> $buffer
echo "## lockalternative=false" >> $buffer
echo "# lockalternative=$lockalternative" >> $buffer
echo >> $buffer
echo "## additional options to use with the default boot option, but not with the" >> $buffer
echo "## alternatives" >> $buffer
echo "## e.g. defoptions=vga=791 resume=/dev/hda5" >> $buffer
echo "# defoptions=$defoptions" >> $buffer
echo >> $buffer
echo "## should update-grub lock old automagic boot options" >> $buffer
echo "## e.g. lockold=false" >> $buffer
echo "## lockold=true" >> $buffer
echo "# lockold=$lockold" >> $buffer
echo >> $buffer
echo "## Xen hypervisor options to use with the default Xen boot option" >> $buffer
echo "# xenhopt=$xenhopt" >> $buffer
echo >> $buffer
echo "## Xen Linux kernel options to use with the default Xen boot option" >> $buffer
echo "# xenkopt=$xenkopt" >> $buffer
echo >> $buffer
echo "## altoption boot targets option" >> $buffer
echo "## multiple altoptions lines are allowed" >> $buffer
echo "## e.g. altoptions=(extra menu suffix) extra boot options" >> $buffer
echo "## altoptions=(recovery) single" >> $buffer
if ! grep -q "^# altoptions" $menu ; then
echo "# altoptions=$altoptions" >> $buffer
else
grep "^# altoptions" $menu >> $buffer
fi
echo >> $buffer
echo "## controls how many kernels should be put into the $menu_file_basename" >> $buffer
echo "## only counts the first occurence of a kernel, not the" >> $buffer
echo "## alternative kernel options" >> $buffer
echo "## e.g. howmany=all" >> $buffer
echo "## howmany=7" >> $buffer
echo "# howmany=$howmany" >> $buffer
echo >> $buffer
echo "## should update-grub create memtest86 boot option" >> $buffer
echo "## e.g. memtest86=true" >> $buffer
echo "## memtest86=false" >> $buffer
echo "# memtest86=$memtest86" >> $buffer
echo >> $buffer
echo "## should update-grub adjust the value of the default booted system" >> $buffer
echo "## can be true or false" >> $buffer
echo "# updatedefaultentry=$updatedefaultentry" >> $buffer
echo >> $buffer
echo "## should update-grub add savedefault to the default options" >> $buffer
echo "## can be true or false" >> $buffer
echo "# savedefault=$savedefault" >> $buffer
echo >> $buffer
echo "## ## End Default Options ##" >> $buffer
echo >> $buffer
echo -n "Searching for splash image ... " >&2
current_splash=`grep '^splashimage=' ${menu_file} || true`
grub_dir_rel=`make_system_path_relative_to_its_root $grub_dir`
splashimage_path="splashimage=${grub_root_device}/${grub_dir_rel##${kernel_dir}}/splash.xpm.gz"
if [ `sed -e "/^$start/,/^$end/d" $menu_file | grep -c '^splashimage='` != "0" ] ; then
#checks for splashscreen defined outside the autoupdated part
splashimage=$(grep '^splashimage=' ${menu_file})
echo "found: ${splashimage##*=}" >&2
echo >&2
elif [ -f "${grub_dir}/splash.xpm.gz" ] && [ "$current_splash" = "" ]; then
echo "found: /boot/grub/splash.xpm.gz" >&2
echo "$splashimage_path" >> $buffer
echo >> $buffer
elif [ -f "${grub_dir}/splash.xpm.gz" ] && [ "$current_splash" = "$splashimage_path" ]; then
echo "found: /boot/grub/splash.xpm.gz" >&2
echo "$splashimage_path" >> $buffer
echo >> $buffer
elif [ "$current_splash" != "" ] && [ "$current_splash" != "$splashimage_path" ]; then
echo "found but preserving previous setting: $(grep '^splashimage=' ${menu_file})" >&2
echo "$current_splash" >> $buffer
echo >> $buffer
else
echo "none found, skipping ..." >&2
fi
xen0Kernels=""
# First kernels with xen0 support.
for ver in `grep -l CONFIG_XEN=y /boot/config* | sed -e s%/boot/config-%%`; do
if ! grep -q CONFIG_XEN_PRIVILEGED_GUEST=y /boot/config-$ver ; then
continue
fi
# ver is a kernel version
kern="/boot/vmlinuz-$ver"
if [ -r $kern ] ; then
newerKernels=""
for i in $xen0Kernels ; do
res=$(CompareVersions "$kern" "$i")
if [ "$kern" != "" ] && [ "$res" -gt 0 ] ; then
newerKernels="$newerKernels $kern $i"
kern=""
else
newerKernels="$newerKernels $i"
fi
done
if [ "$kern" != "" ] ; then
newerKernels="$newerKernels $kern"
fi
xen0Kernels="$newerKernels"
fi
done
sortedKernels=""
for kern in $(/bin/ls -1vr /boot | grep -v "dpkg-*" | grep "^vmlinuz-") ; do
kern="/boot/$kern"
newerKernels=""
for i in $sortedKernels ; do
res=$(CompareVersions "$kern" "$i")
if [ "$kern" != "" ] && [ "$res" -gt 0 ] ; then
newerKernels="$newerKernels $kern $i"
kern=""
else
newerKernels="$newerKernels $i"
fi
done
if [ "$kern" != "" ] ; then
newerKernels="$newerKernels $kern"
fi
sortedKernels="$newerKernels"
done
if test -f "/boot/vmlinuz.old" ; then
sortedKernels="/boot/vmlinuz.old $sortedKernels"
fi
if test -f "/boot/vmlinuz" ; then
sortedKernels="/boot/vmlinuz $sortedKernels"
fi
hypervisors=""
for hyp in /boot/xen-*.gz; do
if [ ! -h "$hyp" ] && [ -f "$hyp" ]; then
hypervisors="$hypervisors `basename "$hyp"`"
fi
done
#Finding the value the default line
use_grub_set_default="false"
if test "$updatedefaultentry" = "true" ; then
defaultEntryNumber=$(sed -ne 's/^[[:blank:]]*default[[:blank:]]*\(.*\).*/\1/p' $menu)
if [ "$defaultEntryNumber" = "saved" ] ; then
defaultEntryNumber=$(sed 'q' "$grub_dir/default")
use_grub_set_default="true"
fi
if test -n "$defaultEntryNumber"; then
defaultEntryNumberPlusOne=$(expr $defaultEntryNumber \+ 1);
defaultEntry=$(grep "^[[:blank:]]*title" $menu | sed -ne "${defaultEntryNumberPlusOne}p" | sed -ne ";s/^[[:blank:]]*title[[:blank:]]*//p")
defaultEntry=$(echo $defaultEntry | sed -e "s/[[:blank:]]*$//") # don't trust trailing blanks
else
notChangeDefault="yes"
fi
else
notChangeDefault="yes"
fi
## heres where we start writing out the kernel entries
counter=0
case "$grub_root_device" in
[^A-Za-z0-9]*) grub_root_type='root' ;;
*) grub_root_type='uuid' ;;
esac
grub2name="${kernel_dir}/grub/core.img"
if [ "$LET_US_TRY_GRUB_2" = "true" ] \
&& test -f /boot/grub/core.img ; then
echo "Found GRUB 2: $grub2name" >&2
cat >> $buffer << EOF
title Chainload into GRUB 2
$grub_root_type $grub_root_device
kernel $grub2name
title `echo ───────────────────────────────────────────────────────────────────── | iconv -f utf-8 -t cp437`
root
title When you have verified GRUB 2 works, you can use this command to
root
title complete the upgrade: upgrade-from-grub-legacy
root
title `echo ───────────────────────────────────────────────────────────────────── | iconv -f utf-8 -t cp437`
root
EOF
fi
# Xen entries first.
for kern in $xen0Kernels ; do
if test ! x"$howmany" = x"all" ; then
if [ $counter -gt $howmany ] ; then
break
fi
fi
kernelName=$(basename $kern)
kernelVersion=$(echo $kernelName | sed -e 's/vmlinuz//')
initrdName=$(FindInitrdName "/boot" "$kernelVersion")
initrd=""
kernel=$kernel_dir/$kernelName
if [ -n "$initrdName" ] ; then
initrd=$kernel_dir/$initrdName
fi
kernelVersion=$(echo $kernelVersion | sed -e 's/^-//')
currentOpt=$(get_kernel_opt $kernelVersion)
hypervisorVersions=$(FindXenHypervisorVersions "$kernelVersion")
found=
for hypervisorVersion in $hypervisorVersions; do
hypervisor="$kernel_dir/xen-$hypervisorVersion.gz"
if [ -e "$hypervisor" ]; then
found=1
echo "Found Xen hypervisor $hypervisorVersion, kernel: $kernel" >&2
write_kernel_entry "$kernelVersion" '' '' "$grub_root_device" \
"$kernel" "$currentOpt $xenkopt" '' "$initrd" "$savedefault" '' \
Xen "$hypervisor" "$hypervisorVersion" "$xenhopt"
counter=$(($counter + 1))
fi
done
if [ -z $found ]; then
for hypervisor in $hypervisors; do
hypVersion=`basename "$hypervisor" .gz | sed s%xen-%%`
echo "Found Xen hypervisor $hypVersion, kernel: $kernel" >&2
write_kernel_entry "$kernelVersion" '' '' "$grub_root_device" \
"$kernel" "$currentOpt $xenkopt" '' "$initrd" "$savedefault" '' \
Xen "$kernel_dir/$hypervisor" "$hypVersion" "$xenhopt"
counter=$(($counter + 1))
done
fi
done
for kern in $sortedKernels ; do
counter=$(($counter + 1))
if test ! x"$howmany" = x"all" ; then
if [ $counter -gt $howmany ] ; then
break
fi
fi
kernelName=$(basename $kern)
kernelVersion=$(echo $kernelName | sed -e 's/vmlinuz//')
initrdName=$(FindInitrdName "/boot" "$kernelVersion")
initrd=""
kernel=$kernel_dir/$kernelName
if [ -n "$initrdName" ] ; then
initrd=$kernel_dir/$initrdName
fi
echo "Found kernel: $kernel" >&2
if [ "$kernelName" = "vmlinuz" ]; then
if [ -L "/boot/$kernelName" ]; then
kernelVersion=`readlink -f "/boot/$kernelName"`
kernelVersion=$(echo $kernelVersion | sed -e 's/.*vmlinuz-//')
kernelVersion="$kernelVersion Default"
else
kernelVersion="Default"
fi
fi
if [ "$kernelName" = "vmlinuz.old" ]; then
if [ -L "/boot/$kernelName" ]; then
kernelVersion=`readlink -f "/boot/$kernelName"`
kernelVersion=$(echo $kernelVersion | sed -e 's/.*vmlinuz-//')
kernelVersion="$kernelVersion Previous"
else
kernelVersion="Previous"
fi
fi
kernelVersion=$(echo $kernelVersion | sed -e 's/^-//')
currentOpt=$(get_kernel_opt $kernelVersion)
do_lockold=$lockold
# do not lockold for the first entry
[ $counter -eq 1 ] && do_lockold=false
write_kernel_entry "$kernelVersion" "" "" "$grub_root_device" "$kernel" \
"$currentOpt $defoptions" "" "$initrd" "$savedefault" "$do_lockold"
# insert the alternative boot options
if test ! x"$alternative" = x"false" ; then
# for each altoptions line do this stuff
sed -ne 's/# altoptions=\(.*\)/\1/p' $buffer | while read line; do
descr=$(echo $line | sed -ne 's/\(([^)]*)\)[[:space:]]\(.*\)/\1/p')
suffix=$(echo $line | sed -ne 's/\(([^)]*)\)[[:space:]]\(.*\)/\2/p')
test x"$lockalternative" = x"true" && do_lockold=false
write_kernel_entry "$kernelVersion" "$descr" "$lockalternative" \
"$grub_root_device" "$kernel" "$currentOpt" "$suffix" "$initrd" \
"$savedefault" "$do_lockold"
done
fi
done
memtest86names="memtest86 memtest86+"
if test ! x"$memtest86" = x"false" ; then
for name in $memtest86names ; do
if test -f "/boot/$name.bin" ; then
kernelVersion="$name"
kernel="$kernel_dir/$name.bin"
currentOpt=
initrd=
echo "Found kernel: $kernel" >&2
write_kernel_entry "$kernelVersion" "" "" "$grub_root_device" \
"$kernel" "$currentOpt" "" "$initrd" "false" ""
fi
done
fi
echo $end >> $buffer
echo -n "Updating $menu ... " >&2
# Insert the new options into the menu
if ! grep -q "^$start" $menu ; then
cat $buffer >> $menu
rm -f $buffer
else
umask 077
sed -e "/^$start/,/^$end/{
/^$start/r $buffer
d
}
" $menu > $menu.new
cat $menu.new > $menu
rm -f $buffer $menu.new
fi
# Function to update the default value
set_default_value() {
if [ "$use_grub_set_default" = "true" ] ; then
if [ -f /usr/lib/grub-legacy/grub-set-default ] ; then
/usr/lib/grub-legacy/grub-set-default $1
else
grub-set-default $1
fi
else
value="$1"
newmenu=$(tempfile)
sed -e "s/^[[:blank:]]*default[[:blank:]]*[[:digit:]]*\(.*\)/default ${value}\1/;b" $menu > $newmenu
cat $newmenu > $menu
rm -f $newmenu
unset newmenu
fi
}
#Updating the default number
if [ "$LET_US_TRY_GRUB_2" = "true" ] && test -f /boot/grub/core.img ; then
set_default_value "0"
elif test -z "$notChangeDefault"; then
newDefaultNumberPlusOne=$(grep "^[[:blank:]]*title[[:blank:]]*" $menu | grep -n "${defaultEntry}" | cut -f1 -d ":" | sed -ne "1p")
if test -z "$newDefaultNumberPlusOne"; then
echo "Previous default entry removed, resetting to 0">&2
set_default_value "0"
elif test -z "$defaultEntry"; then
echo "Value of default value matches no entry, resetting to 0" >&2
set_default_value "0"
else
if test "$newDefaultNumberPlusOne" = "1"; then
newDefaultNumber="0"
else
newDefaultNumber=$(expr $newDefaultNumberPlusOne - 1)
fi
echo "Updating the default booting kernel">&2
set_default_value "$newDefaultNumber"
fi
fi
echo "done" >&2
echo >&2
Mini Shell