Contents 1 OBS Light Deliverable 1.1 How to patch an i586 kernel for MeeGo with obslight? 1.2 How to patch an ARM kernel for MeeGo with obslight? 1.3 How install the dependency of a package into the chroot?

OBS Light Deliverable

How to patch an i586 kernel for MeeGo with obslight?

Create a connection to an OBS server.

• You can execute commands where you want.
• If you don't have a connection to a OBS server you can use an OBS appliance.
• If you don't have any package in your project, you can use obstag and obs2obscopy

obslight addObsServer --serverApi https://api.meego.com --serverRepo http://download.meego.com/live --user obsuser --password opensuse

Create a local project.

• The projects are created in ~/OBSLight/MeeGo_1.2_oss/

obslight addProject --projectLocalName MeeGo_1.2_oss --projectObsName MeeGo:1.2:oss --obsServer https://api.meego.com --projectArch i586 --projectTarget standard

Add a package to your local project.

• The packages are created in ~/OBSLight/MeeGo_1.2_oss/MeeGo:1.2:oss/kernel/

obslight addPackage --projectLocalName MeeGo_1.2_oss --package kernel

Create your chroot.

• The chroot directory is ~/OBSLight/MeeGo_1.2_oss/aChroot/.
• The chroot is created with zypper and your repositorie is automatically added.

obslight createChRoot --projectLocalName MeeGo_1.2_oss

Add a package into your chroot.

• The packages are installed at directory /root/rpmbuild/BUILD/kernel-X.X.X/linux-X.X.X.
• After the installation, a git repository is created at the packages's directory.

obslight addPackageSourceInChRoot --projectLocalName MeeGo_1.2_oss --package kernel

Now you can work into your chroot.

• The directory ~/OBSLight/MeeGo_1.2_oss/chrootTransfert/ is mounted into the chroot in /chrootTransfert/.
• Every scripts execute in aChroot, are stored in /chrootTransfert/ as runMe_YYYY-MM-DD_HHhMMmSS.sh.

obslight goToChRoot --projectLocalName MeeGo_1.2_oss --package kernel 
# cp configs/kernel-x86.config .config 
# make menuconfig
# cp .config config-x86

You have two solutions to upstream your work to the OBS server.

• By making a patch

# exit
obslight makePatch --projectLocalName  $ProjectName  --package $Package --patch myKernelPatch.patch
vi ~/OBSLight/MeeGo_1.2_oss/MeeGo:1.2:oss/kernel/kernel.spec 

You must move your patch command %patchXXX -p1 after the command line cp $RPM_SOURCE_DIR/config-* .

• By copying the new configuration file

# cp config-x86 /chrootTransfert/config-x86
# exit
cp /chrootTransfert/config-x86 ~/OBSLight/MeeGo_1.2_oss/MeeGo:1.2:oss/kernel/

Now you can commit.

• The command addAndCommitChanges ckeck the add and the delete files, before commit the package.

obslight addAndCommitChanges --projectLocalName $ProjectName --package $Package -m "Patch kernel"

How to patch an ARM kernel for MeeGo with obslight?

It's the same approach than with i586 architecture.

• You can't use the kernel package, because it has flags to prevent builds on ARM. Use for example the kernel-adaptation-n900 package.

obslight addObsServer --serverAPI https://api.meego.com --serverRepos http://download.meego.com/live --user obsuser --passw opensuse
obslight addProject --projectLocalName MeeGo_1.2_oss --projectObsName MeeGo:1.2:oss --obsServer https://api.meego.com --projectArchitecture armv8el --projectTarget standard 
obslight addPackage --projectLocalName MeeGo_1.2_oss --package kernel-adaptation-n900
obslight createChRoot --projectLocalName MeeGo_1.2_oss
obslight addPackageSourceInChRoot --projectLocalName MeeGo_1.2_oss --package kernel-adaptation-n900

Some errors you may encounter:

• Problem: nothing provides X needed by Y
• error: Architecture is not included: armv8el
• chroot: failed to run command `sh': No such file or directory

obslight goToChRoot --projectLocalName MeeGo_1.2_oss --package kernel-adaptation-n900
# cp configs/kernel-adaptation-n900.config .config
# make menuconfig
# cp .config config-adaptation-n900
# exit
vi ~/OBSLight/MeeGo_1.2_oss/MeeGo:1.2:oss/kernel-adaptation-n900/kernel-adaptation-n900.spec

You must move your patch command %patchXXX -p1 after the command line cp $RPM_SOURCE_DIR/config-* .

obslight makePatch --projectLocalName  MeeGo_1.2_oss  --package kernel-adaptation-n900 --patch myKernelPatch.patch
obslight addAndCommitChange --projectLocalName  MeeGo_1.2_oss  --package kernel-adaptation-n900 -m "Patch kernel"

How install the dependency of a package into the chroot?

If the project on your OBS doesn’t provide some dependencies and you must add a repository to your chroot's zypper configuration, you have two choices:

• First one, use an URL and an alias:

obslight addRepoInChRoot --projectLocalName MeeGo_1.2_oss --url http://download.meego.com/live/MeeGo:/1.2:/non-oss/MeeGo_1.2/ --alias "MeeGo_non-oss"

• Second one, add the repository of another local project:

obslight addRepoInChRoot --projectLocalName MeeGo_1.2_oss --fromProject $ProjectName