#!/bin/sh
#--------------------------------------------------------------------
# Copyright (C) 2000, 2002 by Mandriva,
# Chmouel Boudjnah <chmouel@mandriva.com>, 
# Redistribution of this file is permitted under the terms of the GNU 
# Public License (GPL)
#--------------------------------------------------------------------
# $Id: installkernel 31366 2006-05-11 12:45:38Z tvignaud $
#--------------------------------------------------------------------
## description: 
#	      Install a kernel to /boot and add an entry for grub,
#             lilo, or yaboot

# /etc/sysconfig/installkernel variables
NOLINK=""
NOENTRY=""
INITRDOPTS=""

# deprecated /etc/sysconfig/installkernel variables
NOLAUNCH=""

# local variables
action="add-kernel"
no_initrd=

if [ -f /etc/sysconfig/installkernel ];then
    source /etc/sysconfig/installkernel
fi

export PATH=$PATH:/sbin:/usr/sbin

function do_load_loop_module () {
    modprobe loop 2> /dev/null > /dev/null
}

function usage () {
cat << EOF >&2
Usage: ${0##*/} -[NRLh] KERNEL_VERSION [BOOTIMAGE MAPFILE [BOOTDIR]]

  -N:  Don't add entry to bootloader

  -R:  Remove bootloader entry and prepare to remove kernel
  -L:  Don't do link to default /boot/vmlinuz and /boot/System.map

  -C: use cramfs for initrd.
  
  -h:  This help.
    
EOF
exit 2
}

while getopts algyNdnRsSCiLch opt
  do
  case "$opt" in
      a) ;; # was autodetect
      s) ;; # was CREATE_LINK_SOURCE
      S) ;; # was REMOVE_LINK_SOURCE

      N) NOENTRY="yes";;
      n) NOLAUNCH="yes";;

      R) action="remove-kernel";;

      i) no_initrd="yes";;
      L) NOLINK="yes";;
      c) ;; # was NOCOPY

      C) INITRDOPTS=$INITRDOPTS" --initrdfs=cramfs";;
      h) usage;;
      *) usage;;
  esac
done
shift $((OPTIND - 1))

version=$1

if [ $# = 3 -o $# = 4 ]; then
    vmlinuz=$2
    map_file=$3
    [ -n "$4" ] && boot=$4 || boot=/boot

    NOLINK="yes"
    cp -f $vmlinuz $boot/vmlinuz-$version
    cp -f $map_file $boot/System.map-$version
    rm -f $boot/initrd-$version.img #- force rebuilding the initrd

    config=.config
    [ -f $config ] || config=../../../.config
    [ -f $config ] && cp -f $config $boot/config-$version

    if [ ! -d /lib/modules/$version ]; then
	echo "no modules installed, so not building initrd (maybe you should run \"make modules_install\" first)"
	exit 0
    fi

elif [ $# != 1 ]; then
    usage
fi


# this is for backward compatibility
# don't use AUTOREMOVE anymore
[ "$AUTOREMOVE" = "no" ] && NOENTRY="yes"

[ -z "$DURING_INSTALL" ] || exit 0

[ "$action" = "remove-kernel" ] && do_load_loop_module

options="--action $action"
[ -z "$NOLINK" ] || options="--no-short-name $options"
[ -z "$NOENTRY" ] || options="--no-entry $options"
[ -z "$NOLAUNCH" ] || options="--no-launch $options"
[ -z "$NOINITRD" ] || options="--no-initrd $options"

if [ -x /usr/sbin/bootloader-config ]; then  
    bootloader-config --kernel-version $version --initrd-options "$INITRDOPTS" $options
fi