Building custom kernel

Building custom kernel

[Francesco]

Hello Everyone,

I'm trying to write a recipe to build a custom kernel for my board but 
I'm a  bit confused on the approach I should use. To help be get started 
I followed these slides, 
http://events17.linuxfoundation.org/sites/events/files/slides/ELC-2017-isar.pdf 


Unfortunately this configuration raised some errors related to the 
dpkg.bbclass. After some digging around, I noticed that there is a 
branch named custom-kernel in you git repo. In this branch the 
dpkg.bbclass is different from the master one.

Which approach should I use if I want to build a custom kernel from the 
sources?

Thanks

Frank.

Re: Building custom kernel

[Jan Kiszka]

On 2018-05-03 12:44, Francesco wrote:
> Hello Everyone,
> 
> I'm trying to write a recipe to build a custom kernel for my board but
> I'm a  bit confused on the approach I should use. To help be get started
> I followed these slides,
> http://events17.linuxfoundation.org/sites/events/files/slides/ELC-2017-isar.pdf
> 

That's outdated by now, though the parts of the concept made it into
mainline.

> 
> Unfortunately this configuration raised some errors related to the
> dpkg.bbclass. After some digging around, I noticed that there is a
> branch named custom-kernel in you git repo. In this branch the
> dpkg.bbclass is different from the master one.
> 
> Which approach should I use if I want to build a custom kernel from the
> sources?

Look at meta-isar/recipes-kernel/linux/*. Both recipes, together with
the defconfig in files/, generate working kernels according to the
official pattern. Another working example can be found at
https://github.com/siemens/jailhouse-images/tree/next/recipes-kernel/linux.

Jan

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