[yocto] Compiling custom kernel

[Alvaro Garcia]

Hi, thank you for your answer. Looks like I got no missing dependencies and
it compiled without problems.

2017-03-29 20:23 GMT+02:00 Bruce Ashfield <bruce.ashfield at windriver.com>:

> On 2017-03-29 1:11 PM, Alvaro Garcia wrote:
>
>> Hi, I'm trying to compile a custom kernel (just custom config).
>> I created a recipe called linux-yocto in my layer:
>> meta-test
>> -recipes-test
>> --linux-yocto
>> ---linux-yocto.bbapend
>> ---files
>> ----enable_various_options.cfg
>>
>> The content of the linux-yocto.bbapend is:
>>
>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
>> SRC_URI += "file://enable_various_options.cfg"
>>
>> And the content of enable_various_options.cfg is:
>> CONFIG_DRM_NOUVEAU=y
>>
>
> Assuming that you do have your bbappend created properly
> (i.e. with the version number suggestion that was sent) a
> configuration option cannot always be blanket enabled. If there
> are missing dependencies for that option, it won't make it into
> the final .config.
>
> So it is worth checking that all dependencies are also included
> in that same .cfg.
>
> Bruce
>
>
>
>> The way I generated enable_various_options.cfg was
>> bitbake -c menuconfig virtual/kernel
>> Select my configuration
>> bitbake -c devshell virtual/kernel
>> diff of the original .config and the new one.
>> I just followed the instructions here
>> https://lists.yoctoproject.org/pipermail/yocto/2014-June/020174.html
>> and here
>> https://software.intel.com/sites/default/files/m/4/d/8/5/8/
>> 42868-11__Developing_Kernel_Module_on_Yocto.pdf
>>
>> Then I run bitbake core-image-x11
>> I got this warning:
>> WARNING:
>> /home/amacho/poky/meta/recipes-kernel/linux/linux-yocto_4.4.
>> bb.do_kernel_configme
>> is tainted from a forced run
>> but the kernel is not compiled with the new config (I do md5 to vmlinuz
>> and was exactly the same).
>>
>> Can you help me to find the way I can compile this kernel?
>>
>> Thank you
>>
>>
>>
>>
>>
>
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