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#!/bin/bash
#
# new-kernel-pkg
# Invoked upon installation or removal of a kernel package, the following
# tasks are/can be done here:
# creation/removal of initrd
# run of depmod/removal of depmod generated files
# addition/removal of kernel images from grub/lilo configuration (via grubby)
#
# Copyright 2002-2008 Red Hat, Inc. All rights reserved.
#
# 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, see <http://www.gnu.org/licenses/>.
#
PATH=/sbin:/bin:$PATH
lilo=/sbin/lilo
# some defaults that are sane for most arches
kernelName=vmlinuz
if [ -x ./grubby ]; then
grubby=./grubby
else
grubby=/sbin/grubby
fi
[ -f /etc/sysconfig/kernel ] && . /etc/sysconfig/kernel
cfgGrub=""
cfgLilo=""
runLilo=""
grubConfig=""
ARCH=$(uname -m)
if [ $ARCH = 'ia64' ]; then
liloConfig=/boot/efi/EFI/redhat/elilo.conf
bootPrefix=/boot/efi/EFI/redhat
liloFlag=elilo
isx86=""
elif [ $ARCH = 'ppc64' -o $ARCH = 'ppc' ]; then
liloConfig=/etc/yaboot.conf
bootPrefix=/boot
lilo=/sbin/ybin
liloFlag=yaboot
runLilo="yes"
isx86=""
elif [ $ARCH = 'sparc' -o $ARCH = 'sparc64' ]; then
liloConfig=/etc/silo.conf
bootPrefix=/boot
liloFlag=silo
lilo=/sbin/silo
isx86=""
elif [ $ARCH = 's390' -o $ARCH = 's390x' ]; then
liloConfig=/etc/zipl.conf
bootPrefix=/boot
liloFlag=zipl
lilo=/sbin/zipl
runLilo="yes"
isx86=""
else
# this leaves i?86 and x86_64
liloConfig=/etc/lilo.conf
grubConfig=$(readlink -f /etc/grub.conf 2>/dev/null)
bootPrefix=/boot
liloFlag=lilo
isx86="yes"
fi
mode=""
version=""
initrd=""
dracut=""
dracuthostonly=""
initrdfile=""
moddep=""
verbose=""
makedefault=""
package=""
mbkernel="$HYPERVISOR"
mbargs="$HYPERVISOR_ARGS"
adddracutargs=""
addplymouthinitrd=""
usage() {
echo "Usage: `basename $0` [-v] [--mkinitrd] [--rminitrd] [--dracut]" >&2
echo " [--initrdfile=<initrd-image>] [--depmod] [--rmmoddep]" >&2
echo " [--kernel-args=<args>] [--remove-args=<args>]" >&2
echo " [--banner=<banner>] [--multiboot=multiboot]" >&2
echo " [--mbargs=mbargs] [--make-default] [--add-dracut-args]" >&2
echo " [--add-plymouth-initrd]" >&2
echo " [--host-only]" >&2
echo " <--install | --remove | --update | --rpmposttrans> <kernel-version>" >&2
echo " (ex: `basename $0` --mkinitrd --depmod --install 2.4.7-2)" >&2
exit 1
}
install() {
# XXX kernel should be able to be specified also (or work right on ia64)
if [ ! -f $bootPrefix/$kernelName-$version ] ; then
[ -n "$verbose" ] && echo "kernel for $version does not exist, not running grubby"
return
fi
INITRD=""
if [ -f $initrdfile ]; then
[ -n "$verbose" ] && echo "found $initrdfile and using it with grubby"
INITRD="--initrd $initrdfile"
if [ -n "$addplymouthinitrd" ]; then
INITRD="$INITRD --extra-initrd $bootPrefix/initrd-plymouth.img"
fi
fi
# FIXME: is this a good heuristic to find out if we're on iSeries?
if [ -d /proc/iSeries ]; then
[ -n "$verbose" ] && echo "On an iSeries, just making img file"
if [ -z $initrdfile ]; then
[ -n "$verbose" ] && echo "No initrd, just adding system map"
/sbin/addSystemMap $bootPrefix/System.map-$version $bootPrefix/$kernelName-$version $bootPrefix/vmlinitrd-$version
else
/sbin/addSystemMap $bootPrefix/System.map-$version $bootPrefix/$kernelName-$version $bootPrefix/vmlinux.sm-$version
/sbin/addRamDisk $initrdfile $bootPrefix/System.map-$version $bootPrefix/vmlinux.sm-$version $bootPrefix/vmlinitrd-$version 2>/dev/null
rm $bootPrefix/vmlinux.sm-$version
fi
return
fi
# get the root filesystem to use
rootdevice=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/fstab)
if [ -n "$mbkernel" -a -n "$cfgLilo" -a "$liloFlag" != "elilo" ]; then
[ -n "$verbose" ] && echo "multiboot specified, not updating lilo.conf"
cfgLilo=""
fi
if [ -n "$cfgGrub" ]; then
[ -n "$verbose" ] && echo "adding $version to $grubConfig"
if [ -n "$banner" ]; then
title="$banner ($version)"
elif [ -f /etc/redhat-release ]; then
title="$(sed 's/ release.*$//' < /etc/redhat-release) ($version)"
else
title="Red Hat Linux ($version)"
fi
$grubby --add-kernel=$bootPrefix/$kernelName-$version \
$INITRD --copy-default $makedefault --title "$title" \
${mbkernel:+--add-multiboot="$mbkernel"} ${mbargs:+--mbargs="$mbargs"} \
--args="root=$rootdevice $kernargs" --remove-kernel="TITLE=$title"
else
[ -n "$verbose" ] && echo "$grubConfig does not exist, not running grubby"
fi
if [ -n "$cfgLilo" ]; then
[ -n "$verbose" ] && echo "adding $version to $liloConfig"
$grubby --add-kernel=$bootPrefix/$kernelName-$version $INITRD \
--copy-default $makedefault --title $version \
${mbkernel:+--add-multiboot="$mbkernel"} ${mbargs:+--mbargs="$mbargs"} \
--args="root=$rootdevice $kernargs" --remove-kernel="TITLE=$version" \
--$liloFlag
if [ -n "$runLilo" ]; then
[ -n "$verbose" ] && echo "running $lilo"
if [ ! -x $lilo ] ; then
[ -n "$verbose" ] && echo "$lilo does not exist"
else
$lilo > /dev/null
fi
fi
else
[ -n "$verbose" ] && echo "$liloConfig does not exist, not running grubby"
fi
}
rpmposttrans()
{
local files
local f
files="/etc/kernel/postinst.d/*[^~] /etc/kernel/postinst.d/$version/*[^~]"
for f in $files ; do
[ -f $f -a -x $f ] || continue
$f $version $bootPrefix/$kernelName-$version
done
}
remove() {
# FIXME: is this a good heuristic to find out if we're on iSeries?
if [ -d /proc/iSeries ]; then
[ -n "$verbose" ] && echo "On an iSeries, remove img file"
rm -f $bootPrefix/$kernelName-$version.img 2>/dev/null
return
fi
local files
local f
files="/etc/kernel/prerm.d/*[^~] /etc/kernel/prerm.d/$version/*[^~]"
for f in $files ; do
[ -f $f -a -x $f ] || continue
$f $version $bootPrefix/$kernelName-$version
done
if [ -n "$cfgGrub" ]; then
[ -n "$verbose" ] && echo "removing $version from $grubConfig"
$grubby --remove-kernel=$bootPrefix/$kernelName-$version
else
[ -n "$verbose" ] && echo "$grubConfig does not exist, not running grubby"
fi
if [ -n "$cfgLilo" ]; then
[ -n "$verbose" ] && echo "removing $version from $liloConfig"
$grubby --remove-kernel=$bootPrefix/$kernelName-$version \
--$liloFlag
if [ -n "$runLilo" ]; then
[ -n "$verbose" ] && echo "running $lilo"
if [ ! -x $lilo ] ; then
[ -n "$verbose" ] && echo "$lilo does not exist"
else
$lilo > /dev/null
fi
fi
else
[ -n "$verbose" ] && echo "$liloConfig does not exist, not running grubby"
fi
}
update() {
if [ ! -f $bootPrefix/$kernelName-$version ] ; then
[ -n "$verbose" ] && echo "kernel for $version does not exist, not running grubby"
return
fi
INITRD=""
if [ -f $initrdfile ]; then
[ -n "$verbose" ] && echo "found $initrdfile and using it with grubby"
INITRD="--initrd $initrdfile"
if [ -n "$addplymouthinitrd" ]; then
INITRD="$INITRD --extra-initrd $bootPrefix/initrd-plymouth.img"
fi
fi
if [ -n "$cfgGrub" ]; then
[ -n "$verbose" ] && echo "updating $version from $grubConfig"
$grubby --update-kernel=$bootPrefix/$kernelName-$version \
$INITRD \
${kernargs:+--args="$kernargs"} \
${removeargs:+--remove-args="$removeargs"} \
${mbkernel:+--add-multiboot="$mbkernel"}
else
[ -n "$verbose" ] && echo "$grubConfig does not exist, not running grubby"
fi
if [ -n "$cfgLilo" ]; then
[ -n "$verbose" ] && echo "updating $version from $liloConfig"
$grubby --update-kernel=$bootPrefix/$kernelName-$version \
$INITRD \
${kernargs:+--args="$kernargs"} \
${removeargs:+--remove-args="$removeargs"} \
--$liloFlag
if [ -n "$runLilo" ]; then
[ -n "$verbose" ] && echo "running $lilo"
if [ ! -x $lilo ] ; then
[ -n "$verbose" ] && echo "$lilo does not exist"
else
$lilo > /dev/null
fi
fi
else
[ -n "$verbose" ] && echo "$liloConfig does not exist, not running grubby"
fi
}
mkinitrd() {
if [ -n "$dracut" ]; then
tool="/sbin/dracut $dracuthostonly -f $initrdfile $version"
else
tool="/sbin/mkinitrd --allow-missing -f $initrdfile $version"
fi
[ -n "$verbose" ] && echo "creating initrd: $tool"
$tool
rc=$?
if [ $rc != 0 ]; then
echo "mkinitrd failed" >&2
exit 1
fi
}
rminitrd() {
[ -n "$verbose" ] && echo "removing initrd $initrdfile"
[ -f $initrdfile ] && rm -f $initrdfile
}
doDepmod() {
[ -n "$verbose" ] && echo "running depmod for $version"
depmod -ae -F /boot/System.map-$version $version
}
doRmmoddep() {
[ -n "$verbose" ] && echo "removing modules.dep info for $version"
[ -d /lib/modules/$version ] && rm -f /lib/modules/$version/modules.*
}
while [ $# -gt 0 ]; do
case $1 in
--mkinitrd)
initrd="make"
;;
--rminitrd)
initrd="remove"
;;
--dracut)
dracut=--dracut
;;
--host-only)
dracuthostonly=-H
;;
--initrdfile*)
if echo $1 | grep '=' >/dev/null ; then
initrdfile=`echo $1 | sed 's/^--initrdfile=//'`
else
initrdfile=$2
shift
fi
;;
--kernel-args*)
if echo $1 | grep '=' >/dev/null ; then
kernargs=`echo $1 | sed 's/^--kernel-args=//'`
else
kernargs=$2
shift
fi
;;
--remove-args*)
if echo $1 | grep '=' >/dev/null ; then
removeargs=`echo $1 | sed 's/^--remove-args=//'`
else
removeargs=$2
shift
fi
;;
--banner*)
if echo $1 | grep '=' >/dev/null ; then
banner=`echo $1 | sed 's/^--banner=//'`
else
banner=$2
shift
fi
;;
--multiboot*)
if echo $1 |grep '=' >/dev/null; then
mbkernel=`echo $1 | sed 's/^--multiboot=//'`
else
# can't really support having an optional second arg here
# sorry!
mbkernel="/boot/xen.gz"
fi
;;
--mbargs*)
if echo $1 |grep '=' >/dev/null; then
mbargs=`echo $1 | sed 's/^--mbargs=//'`
else
mbargs="$2"
shift
fi
;;
--depmod)
moddep="make"
;;
--rmmoddep)
moddep="remove"
;;
--make-default)
makedefault="--make-default"
;;
--package)
if echo $1 | grep '=' >/dev/null ; then
package=`echo $1 | sed 's/^--package=//'`
else
package=$2
shift
fi
;;
--add-dracut-args)
adddracutargs=--add-dracut-args
;;
--add-plymouth-initrd)
addplymouthinitrd=--add-plymouth-initrd
;;
-v)
verbose=-v
;;
*)
if [ -z "$mode" ]; then
mode=$1
elif [ -z "$version" ]; then
version=$1
else
usage
fi
;;
esac
shift
done
# make sure the mode is valid
if [ "$mode" != "--install" -a "$mode" != "--remove" -a "$mode" != "--update" -a "$mode" != "--rpmposttrans" ] ; then
usage
fi
if [ -z "$version" ]; then
usage
fi
if [ "$mode" != "--install" -a "$makedefault" ]; then
usage
fi
kernelmajor=`echo $kernel | cut -d . -f 1,2`
# kernel image for 2.4 is vmlinux
if [ $ARCH = 'ppc64' -o $ARCH = 'ppc' ]; then
if [ "$kernelmajor" == "2.4" ]; then
kernelName=vmlinux
fi
fi
# set the initrd file based on arch; ia64 is the only currently known oddball
if [ -z "$initrdfile" ]; then
INITRD_NAME_PREFIX="initrd"
if [ -n "$dracut" ]; then
INITRD_NAME_PREFIX="initramfs"
fi
if [ `uname -m` = "ia64" ]; then
initrdfile="/boot/efi/EFI/redhat/$INITRD_NAME_PREFIX-$version.img"
else
initrdfile="/boot/$INITRD_NAME_PREFIX-$version.img"
fi
fi
[ -n "$verbose" ] && echo "initrdfile is $initrdfile"
# add dracut i18n, keyboard and plymouth kernel args if requested
if [ -n "$dracut" -o -n "$adddracutargs" ]; then
[ -r /etc/sysconfig/keyboard ] && . /etc/sysconfig/keyboard
[ -r /etc/sysconfig/i18n ] && . /etc/sysconfig/i18n
for i in SYSFONT SYSFONTACM UNIMAP LANG KEYTABLE; do
val=$(eval echo \$$i)
[ -n "$val" ] && kernargs="$kernargs $i=$val"
done
if [ -n "$KEYBOARDTYPE" -a "$KEYBOARDTYPE" != "pc" ]; then
kernargs="$kernargs KEYBOARDTYPE=$KEYBOARDTYPE"
fi
fi
# set this as the default if we have the package and it matches
if [ "$mode" == "--install" -a "$UPDATEDEFAULT" == "yes" -a -n "$package" -a -n "$DEFAULTKERNEL" -a "$package" == "$DEFAULTKERNEL" ]; then
makedefault="--make-default"
[ -n "$verbose" ] && echo "making it the default based on config"
fi
if [ "$moddep" == "make" ]; then
doDepmod
elif [ "$moddep" == "remove" ]; then
doRmmoddep
fi
if [ "$initrd" == "make" ]; then
mkinitrd
elif [ "$initrd" == "remove" ]; then
rminitrd
fi
if [ ! -x $grubby ] ; then
[ -n "$verbose" ] && echo "$grubby does not exist"
exit 0
fi
[ -n "$grubConfig" ] && [ -f "$grubConfig" ] && cfgGrub=1;
[ -n "$liloConfig" ] && [ -f "$liloConfig" ] && cfgLilo=1;
# if we have a lilo config on an x86 box, see if the default boot loader
# is lilo to determine if it should be run
if [ -n "$cfgLilo" -a -n "$isx86" ]; then
runLilo=$($grubby --bootloader-probe | grep lilo)
fi
if [ "$mode" == "--install" ]; then
install
elif [ "$mode" == "--remove" ]; then
remove
elif [ "$mode" == "--update" ]; then
update
elif [ "$mode" == "--rpmposttrans" ]; then
rpmposttrans
fi
exit 0
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