[yocto] Assembling images to build a NOR boot image

[Renaud Barbier]

On 08/08/2014 09:19, Nicolas Dechesne wrote:
> On Thu, Aug 7, 2014 at 7:07 PM, Renaud Barbier <renaud.barbier at ge.com> wrote:
>> > Hello,
>> > I am working on the creation of a boot image for a NOR flash.
>> > The image assembles a boot loader and a ubi image containing the kernel
>> > and device tree.
>> >
>> > So far I have created a build area to install the kernel and device tree
>> > and used IMAGE_CMD_ubi to create the ubi image.
>> >
>> > Then I have added a python function do_norbuild that puts together the
>> > boot loader and ubi image and adds padding.
>> > Using bitbake, I can create the NOR image as follows:
>> > bitbake -c norbuild core-image
>> >
>> > However,
>> > "bitbake core-image" will not call the norbuild task.
>> >
>> > I have been through quite a lot of code and documentation and cannot
>> > figure out why the task is not called.
>> >
>> > If you have any idea of what couldbe wrong, please le me know.
> you seem to have created a task, not just a Python function, since you
> can run it with -c norbuild. By default when running bitbake <recipe>,
> bitbake will run do_build task. so when you create your own custom
> task, you need to insert it into the task list, maybe you haven't done
> that?
> 
> something like this should work in your case:
> 
> addtask norbuild before do_build after do_rootfs

Thanks,
originally I had "addtask norbuild after do_rootfs" followed by other
desperate attempts. It did not work.
I just saw your email as I was looking at do_build.
Adding before do_build did resolve my problem.

Cheers,
Renaud