Compiling custom kernel

Compiling custom kernel

[Alvaro Garcia]

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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

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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Re: Compiling custom kernel

[Leonardo Sandoval]

On Wed, 2017-03-29 at 19:11 +0200, 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

you may need to include the kernel version to  your bbappend
(linux-yocto_4.4.bappend)


> ---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
> 
> 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
> 
> 
> 
> -- 
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto

Re: Compiling custom kernel

[Alvaro Garcia]

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Hi, that was exactly my problem. Finally the kernel was compiled with my
config. I'm so happy now, thank you!

2017-03-29 19:32 GMT+02:00 Leonardo Sandoval <
leonardo.sandoval.gonzalez@linux.intel.com>:

> On Wed, 2017-03-29 at 19:11 +0200, 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
>
> you may need to include the kernel version to  your bbappend
> (linux-yocto_4.4.bappend)
>
>
> > ---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
> >
> > 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
> >
> >
> >
> > --
> > _______________________________________________
> > yocto mailing list
> > yocto@yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
>
>
>

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Re: Compiling custom kernel

[Bruce Ashfield]

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
>
>
>
>

Re: Compiling custom kernel

[Alvaro Garcia]

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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@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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