diff options
Diffstat (limited to 'installkernel')
-rw-r--r-- | installkernel | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/installkernel b/installkernel new file mode 100644 index 0000000..4acc41c --- /dev/null +++ b/installkernel @@ -0,0 +1,89 @@ +#!/bin/sh +# +# Copyright (C) 1995 - 1998, Ian A. Murdock <imurdock@debian.org> +# Copyright (C) 1998, 1999, Guy Maor +# Copyright (C) 2002, Matthew Wilcox +# Copyright (C) 2002, 2004, 2005, 2007, 2009 Clint Adams +# Copyright (C) 2009 Manoj Srivasta +# +# Install the kernel on a Debian Linux system. +# +# This script is called from /usr/src/linux/arch/i386/boot/install.sh. +# If you install it as /sbin/installkernel, you can do a "make install" +# from a generic kernel source tree, and the image will be installed to +# the proper place for Debian GNU/Linux. + +set -e + +# Parse the command line options. Of course, powerpc has to be all +# different, and passes in a fifth argument, just because it is +# "special". We ignore the fifth argument, and do not flag is as an +# error, which it would be for any arch apart from powerpc +if [ $# -eq 3 ] || [ $# -eq 4 ] || [ $# -eq 5 ] ; then + img="$2" + map="$3" + ver="$1" + if [ $# -ge 4 ] && [ -n "$4" ] ; then + dir="$4" + else + dir="/boot" + fi +else + echo "Usage: installkernel <version> <image> <System.map> <directory>" + exit 1 +fi + +# Create backups of older versions before installing +updatever () { + if [ -f "$dir/$1-$ver" ] ; then + mv "$dir/$1-$ver" "$dir/$1-$ver.old" + fi + + cat "$2" > "$dir/$1-$ver" + + # This section is for backwards compatibility only + if test -f "$dir/$1" || test -h "$dir/$1" ; then + # The presence of "$dir/$1" is unusual in modern intallations, and + # the results are mostly unused. So only recreate them if they + # already existed. + if test -L "$dir/$1" ; then + # If we were using links, continue to use links, updating if + # we need to. + if [ "$(readlink -f ${dir}/${1})" = "${dir}/${1}-${ver}" ]; then + # Yup, we need to change + ln -sf "$1-$ver.old" "$dir/$1.old" + else + mv "$dir/$1" "$dir/$1.old" + fi + ln -sf "$1-$ver" "$dir/$1" + else # No links + mv "$dir/$1" "$dir/$1.old" + cat "$2" > "$dir/$1" + fi + fi +} + +if [ "$(basename $img)" = "vmlinux" ] ; then + img_dest=vmlinux +else + img_dest=vmlinuz +fi +updatever $img_dest "$img" +updatever System.map "$map" + +config=$(dirname "$map") +config="${config}/.config" +if [ -f "$config" ] ; then + updatever config "$config" +fi + +# If installing in the usual directory, run the same scripts that hook +# into kernel package installation. Also make sure the PATH includes +# /usr/sbin and /sbin, just as dpkg would. +if [ "$dir" = "/boot" ]; then + PATH="$PATH:/usr/sbin:/sbin" \ + run-parts --verbose --exit-on-error --arg="$ver" --arg="$dir/$img_dest-$ver" \ + /etc/kernel/postinst.d +fi + +exit 0 |