Re: make-kpkg and uImage/cuImage.*

[Rogério Brito <rbrito@ime.usp.br>]

Hi, Gerhard.

On Jul 31 2009, Gerhard Pircher wrote:
> I'm trying to build a Debian kernel package for my AmigaOne which uses
> "cuImage" kernel images. Unfortunately make-kpkg doesn't seem to support
> U-boot images yet. Thus I would like to know, if somebody is working on/
> or has a concept for implementing uImage support in make-kpkg.

Yes, I miss support for that too.

I have already filed a bug against kernel-package, but I'm not sure if
Manoj is working on it (or if he has already included hooks for
that---if that's the case, I would love to know about the
functionality).

Anyway, here is a quick'n'dirty script that I've built for cross
compiling kernels and generating uimages. Please notice that you will
need to install uboot-mkimage for the script to work.

If you make some improvements, please let me know and share the code.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

#!/bin/sh
#
# Quick'n'dirty script for compilation of kernel for Kurobox.
# $Id: kernel-kuro,v 1.4 2009/05/16 23:52:58 rbrito Exp rbrito $
#

set -e

#################################################################
# User-defined variables
#################################################################
ROOT_CROSSCOMP=/usr/local/media/cross-compile
LINUXPATH=$ROOT_CROSSCOMP/linux
BUILT_ROOT=/tmp/kernel
CONCUR="-j 2"

#################################################################
# Auxiliary Functions
#################################################################

# Environment preparation to create a Debian package
prepare_environment () {
    rm    -rf $BUILT_ROOT
    mkdir -p  $BUILT_ROOT/boot || true
    mkdir -p  $BUILT_ROOT/DEBIAN || true
}

# Generate postinst


#################################################################
# Main script
#################################################################

prepare_environment;

# Setting environment variables
export ROOT_CROSSCOMP LINUXPATH BUILT_ROOT
export PATH=$PATH:${ROOT_CROSSCOMP}/bin:${ROOT_CROSSCOMP}/powerpc-linux/bin

#### No user serviceable parts below here ####

cd $LINUXPATH

INSTALL_MOD_PATH=$BUILT_ROOT ARCH=powerpc CROSS_COMPILE=powerpc-linux- make clean
INSTALL_MOD_PATH=$BUILT_ROOT ARCH=powerpc CROSS_COMPILE=powerpc-linux- make oldconfig
INSTALL_MOD_PATH=$BUILT_ROOT ARCH=powerpc CROSS_COMPILE=powerpc-linux- make menuconfig
INSTALL_MOD_PATH=$BUILT_ROOT ARCH=powerpc CROSS_COMPILE=powerpc-linux- make $CONCUR all modules
INSTALL_MOD_PATH=$BUILT_ROOT ARCH=powerpc CROSS_COMPILE=powerpc-linux- make modules_install

# Preparation for the kernel files
VERSION=$(cat include/config/kernel.release)

./scripts/dtc/dtc -I dts -O dtb -V 16 -o $BUILT_ROOT/boot/kuroboxHD.dtb-$VERSION ./arch/powerpc/boot/dts/kuroboxHD.dts
./scripts/dtc/dtc -I dts -O dtb -V 16 -o $BUILT_ROOT/boot/kuroboxHG.dtb-$VERSION ./arch/powerpc/boot/dts/kuroboxHG.dts

cd $BUILT_ROOT/boot
cp $LINUXPATH/System.map				System.map-$VERSION
cp $LINUXPATH/arch/powerpc/boot/uImage			uImage-$VERSION
cp $LINUXPATH/.config					config-$VERSION
#ln -sf uImage-$VERSION					uImage

SIZE=$(du -s /tmp/kernel | cut -f 1)

cat <<EOF > $BUILT_ROOT/DEBIAN/control
Package: linux-image-$VERSION
Priority: optional
Section: kernel
Installed-Size: $SIZE
Maintainer: Rogério Brito <rbrito@ime.usp.br>
Architecture: powerpc
Source: linux-source-$VERSION
Version: $VERSION
Provides: linux-image, linux-image-2.6
Homepage: http://www.kernel.org/
Description: Linux kernel binary image for version $VERSION
 This package contains the Linux kernel image for version
 ${VERSION}.
 .
 It also contains the corresponding System.map file, and the modules
 built. It also contains scripts that try to ensure that the system is
 not left in a unbootable state after an update.
EOF

cat <<EOF2 > $BUILT_ROOT/DEBIAN/postinst
#! /bin/sh

set -e

# for details of how this script can be called, see:
# http://www.debian.org/doc/debian-policy/ch-maintainerscripts.html

case "\$1" in
    configure)
	cd /boot
	ln -sf uImage-$VERSION uImage
	depmod -a
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)

    ;;

    *)
        echo postinst called with unknown argument "\$1" >&2
        exit 0
    ;;
esac

exit 0
EOF2

# fix permissions of postinst
chmod a+x $BUILT_ROOT/DEBIAN/postinst || true

# generate md5sums
cd $BUILT_ROOT
find boot/ lib/ -type f -print0 | xargs -0 md5sum > DEBIAN/md5sums

# create the final deb package
fakeroot dpkg-deb -b $BUILT_ROOT $ROOT_CROSSCOMP