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353 lines
8.6 KiB
353 lines
8.6 KiB
4 years ago
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#!/bin/bash
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#
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# Invoked upon installation or removal of a kernel package, the following
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# tasks are/can be done here:
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# creation/removal of initrd
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# run of depmod/removal of depmod generated files
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# addition/removal of kernel images from grub/lilo configuration (via grubby)
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#
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# Copyright (C) 2002, 2003 Red Hat, Inc.
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#
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PATH=/sbin:/bin:$PATH
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lilo=/usr/sbin/lilo
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# some defaults that are sane for most arches
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kernelName=elf-memtest86+
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if [ -x ./grubby ]; then
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grubby=./grubby
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else
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grubby=/usr/sbin/grubby
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fi
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cfgGrub=""
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cfgLilo=""
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runLilo=""
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grubConfig=""
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ARCH=$(uname -m)
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if [ $ARCH = 'ia64' ]; then
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liloConfig=/boot/efi/EFI/redhat/elilo.conf
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bootPrefix=/boot/efi/EFI/redhat
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liloFlag=elilo
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isx86=""
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elif [ $ARCH = 'ppc64' -o $ARCH = 'ppc' ]; then
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liloConfig=/etc/yaboot.conf
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bootPrefix=/boot
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lilo=/usr/sbin/ybin
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kernelName=vmlinux
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liloFlag=yaboot
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runLilo="yes"
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isx86=""
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elif [ $ARCH = 'sparc' -o $ARCH = 'sparc64' ]; then
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liloConfig=/etc/silo.conf
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bootPrefix=/boot
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liloFlag=silo
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lilo=/usr/sbin/silo
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isx86=""
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elif [ $ARCH = 's390' -o $ARCH = 's390x' ]; then
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liloConfig=/etc/zipl.conf
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bootPrefix=/boot
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liloFlag=zipl
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lilo=/usr/sbin/zipl
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runLilo="yes"
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isx86=""
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else
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# this leaves i?86 and x86_64
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liloConfig=/etc/lilo.conf
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grubConfig=/boot/grub/grub.conf
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bootPrefix=/boot
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liloFlag=lilo
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isx86="yes"
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fi
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mode=""
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version=""
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initrd=""
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initrdfile=""
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moddep=""
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verbose=""
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usage() {
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echo "Usage: `basename $0` [-v] [--mkinitrd] [--rminitrd]" >&2
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echo " [--initrdfile=<initrd-image>] [--depmod] [--rmmoddep]" >&2
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echo " [--kernel-args=<args>] [--banner=<banner>]" >&2
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echo " [--kernel-name=<kernel-name>]" >&2
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echo " <--install | --remove> <kernel-version>" >&2
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echo " (ex: `basename $0` --mkinitrd --depmod --install 2.4.7-2)" >&2
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exit 1
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}
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install() {
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# XXX kernel should be able to be specified also (or work right on ia64)
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if [ ! -f $bootPrefix/$kernelName-$version ] ; then
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[ -n "$verbose" ] && echo "kernel for $version does not exist, not running grubby"
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return
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fi
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INITRD=""
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if [ -f $initrdfile ]; then
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[ -n "$verbose" ] && echo "found $initrdfile and using it with grubby"
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INITRD="--initrd $initrdfile"
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fi
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# FIXME: is this a good heuristic to find out if we're on iSeries?
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if [ -d /proc/iSeries ]; then
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[ -n "$verbose" ] && echo "On an iSeries, just making img file"
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if [ -z $initrdfile ]; then
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[ -n "$verbose" ] && echo "No initrd, just adding system map"
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/usr/sbin/addSystemMap $bootPrefix/System.map-$version $bootPrefix/$kernelName-$version $bootPrefix/vmlinitrd-$version
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else
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/usr/sbin/addSystemMap $bootPrefix/System.map-$version $bootPrefix/$kernelName-$version $bootPrefix/vmlinux.sm-$version
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/usr/sbin/addRamDisk $initrdfile $bootPrefix/System.map-$version $bootPrefix/vmlinux.sm-$version $bootPrefix/vmlinitrd-$version 2>/dev/null
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rm $bootPrefix/vmlinux.sm-$version
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fi
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return
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fi
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# get the root filesystem to use; if it's on a label/uuid make sure it's
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# been configured. if not, get the root device from mount
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rootdevice=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/fstab)
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short=$(echo $rootdevice | cut -d= -f1)
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if [ "$short" == "LABEL" -o "$short" == "UUID" ]; then
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if ! /usr/sbin/findfs "$rootdevice" &> /dev/null; then
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rootdevice=$(mount | awk '$3 == "/" { print $1 }')
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fi
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fi
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if [ -n "$cfgGrub" ]; then
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[ -n "$verbose" ] && echo "adding $version to $grubConfig"
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if [ -n "$banner" ]; then
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title="$banner ($version)"
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elif [ -f /etc/redhat-release ]; then
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title="$(sed 's/ release.*$//' < /etc/redhat-release) ($version)"
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else
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title="Red Hat Linux ($version)"
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fi
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# check whether grubby supports --grub argument
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if /usr/sbin/grubby --help | grep -qe '--grub\W'; then
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GRUB_ARG="--grub "
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else
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GRUB_ARG=
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fi
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/usr/sbin/grubby ${GRUB_ARG}--add-kernel=$bootPrefix/$kernelName-$version $INITRD \
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--copy-default --title "$title" \
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--args="root=$rootdevice $kernargs" \
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--remove-kernel="TITLE=$title"
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else
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[ -n "$verbose" ] && echo "$grubConfig does not exist, not running grubby"
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fi
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if [ -n "$cfgLilo" ]; then
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[ -n "$verbose" ] && echo "adding $version to $liloConfig"
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/usr/sbin/grubby --add-kernel=$bootPrefix/$kernelName-$version $INITRD \
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--copy-default --title $version \
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--args="root=$rootdevice $kernargs" \
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--remove-kernel="TITLE=$version" \
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--$liloFlag
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if [ -n "$runLilo" ]; then
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[ -n "$verbose" ] && echo "running $lilo"
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if [ ! -x $lilo ] ; then
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[ -n "$verbose" ] && echo "$lilo does not exist"
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else
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$lilo > /dev/null
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fi
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fi
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else
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[ -n "$verbose" ] && echo "$liloConfig does not exist, not running grubby"
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fi
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}
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remove() {
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# FIXME: is this a good heuristic to find out if we're on iSeries?
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if [ -d /proc/iSeries ]; then
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[ -n "$verbose" ] && echo "On an iSeries, remove img file"
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rm -f $bootPrefix/$kernelName-$version.img 2>/dev/null
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return
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fi
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if [ -n "$cfgGrub" ]; then
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[ -n "$verbose" ] && echo "removing $version from $grubConfig"
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/usr/sbin/grubby --remove-kernel=$bootPrefix/$kernelName-$version
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else
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[ -n "$verbose" ] && echo "$grubConfig does not exist, not running grubby"
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fi
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if [ -n "$cfgLilo" ]; then
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[ -n "$verbose" ] && echo "removing $version from $liloConfig"
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/usr/sbin/grubby --remove-kernel=$bootPrefix/$kernelName-$version \
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--$liloFlag
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if [ -n "$runLilo" ]; then
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[ -n "$verbose" ] && echo "running $lilo"
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if [ ! -x $lilo ] ; then
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[ -n "$verbose" ] && echo "$lilo does not exist"
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else
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$lilo > /dev/null
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fi
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fi
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else
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[ -n "$verbose" ] && echo "$liloConfig does not exist, not running grubby"
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fi
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}
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mkinitrd() {
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[ -n "$verbose" ] && echo "creating initrd $initrdfile using $version"
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/usr/sbin/mkinitrd -f $initrdfile $version
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rc=$?
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if [ $rc != 0 ]; then
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echo "mkinitrd failed" >&2
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exit 1
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fi
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}
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rminitrd() {
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[ -n "$verbose" ] && echo "removing initrd $initrdfile"
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[ -f $initrdfile ] && rm -f $initrdfile
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}
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doDepmod() {
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[ -n "$verbose" ] && echo "running depmod for $version"
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depmod -ae -F /boot/System.map-$version $version
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}
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doRmmoddep() {
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[ -n "$verbose" ] && echo "removing modules.dep info for $version"
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[ -d /lib/modules/$version ] && rm -f /lib/modules/$version/modules.*
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}
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while [ $# -gt 0 ]; do
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case $1 in
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--mkinitrd)
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initrd="make"
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;;
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--rminitrd)
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initrd="remove"
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;;
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--initrdfile*)
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if echo $1 | grep '=' >/dev/null ; then
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initrdfile=`echo $1 | sed 's/^--initrdfile=//'`
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else
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initrdfile=$2
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shift
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fi
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;;
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--kernel-args*)
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if echo $1 | grep '=' >/dev/null ; then
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kernargs=`echo $1 | sed 's/^--kernel-args=//'`
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else
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kernargs=$2
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shift
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fi
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;;
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--banner*)
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if echo $1 | grep '=' >/dev/null ; then
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banner=`echo $1 | sed 's/^--banner=//'`
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else
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banner=$2
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shift
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fi
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;;
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--kernel-name*)
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if echo $1 | grep '=' >/dev/null ; then
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kernelName=`echo $1 | sed 's/^--kernel-name=//'`
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else
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kernelName=$2
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shift
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fi
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;;
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--depmod)
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moddep="make"
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;;
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--rmmoddep)
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moddep="remove"
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;;
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-v)
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verbose=-v
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;;
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*)
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if [ -z "$mode" ]; then
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mode=$1
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elif [ -z "$version" ]; then
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version=$1
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else
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usage
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fi
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;;
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esac
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shift
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done
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# make sure the mode is valid
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if [ "$mode" != "--install" -a "$mode" != "--remove" ] ; then
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usage
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fi
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if [ -z "$version" ]; then
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usage
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fi
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# set the initrd file based on arch; ia64 is the only currently known oddball
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if [ -z "$initrdfile" ]; then
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if [ `uname -m` = "ia64" ]; then
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initrdfile="/boot/efi/EFI/redhat/initrd-$version.img"
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else
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initrdfile="/boot/initrd-$version.img"
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fi
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fi
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[ -n "$verbose" ] && echo "initrdfile is $initrdfile"
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if [ "$moddep" == "make" ]; then
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doDepmod
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elif [ "$moddep" == "remove" ]; then
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doRmmoddep
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fi
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if [ "$initrd" == "make" ]; then
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mkinitrd
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elif [ "$initrd" == "remove" ]; then
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rminitrd
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fi
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if [ ! -x $grubby ] ; then
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[ -n "$verbose" ] && echo "$grubby does not exist"
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exit 0
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fi
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[ -n "$grubConfig" ] && [ -f "$grubConfig" ] && cfgGrub=1;
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[ -n "$liloConfig" ] && [ -f "$liloConfig" ] && cfgLilo=1;
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# if we have a lilo config on an x86 box, see if the default boot loader
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# is lilo to determine if it should be run
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if [ -n "$cfgLilo" -a -n "$isx86" ]; then
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runLilo=$($grubby --bootloader-probe | grep lilo)
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fi
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if [ "$mode" == "--install" ]; then
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install
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elif [ "$mode" == "--remove" ]; then
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remove
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fi
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exit 0
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