Choose kernel version in OpenEmbedded

Question

I want to build Angstrom kernel on Ubuntu 13.04 host machine using OpenEmbedded.

git clone git://github.com/Angstrom-distribution/setup-scripts.git
cd setup-scripts
MACHINE=beagleboard./oebb.sh config beagleboard
MACHINE=beagleboard./oebb.sh update
MACHINE=beagleboard./oebb.sh bitbake virtual/kernel

The reason of building kernel is to be able to cross-compile a kernel driver on host machine, targeting on Angstrom distribution (BeagleBoard). Beagleboard runs a prebuilt image of 2.6.32.

As I know, the cross-compile must target not only the Angstrom distribution, but the same kernel version that BeagleBoard runs. How does OE choose "preferred" version? Is there any way I can choose the kernel version that BitBake will build?

Answer 1

Depending on PREFERRED_PROVIDER_virtual/kernel you choose, you can specify the version this is an example:

PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
PREFERRED_VERSION_linux-yocto ?= "3.10%"

remember the '%' means that numbers following 3.10 doesn't matter.

another example

PREFERRED_PROVIDER_virtual/kernel ?= "linux-imx"
PREFERRED_VERSION_linux-imx ?= "3.10.2"