How do I get the kernel modules into rootfs?

How do I get the kernel modules into rootfs?

[Sebastian Süsens]

Hello,

I have build the system with MACHINE_EXTRA_RRECOMMENDS += "
kernel-modules" at the machine configuration.
When I look into the rootfs.tar archive I see no modules installed in /lib/modules.
I get only a modules.tar archive at the deploy folder.

How do I get the modules into the rootfs?

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Re: How do I get the kernel modules into rootfs?

[Paul Eggleton]

On Tuesday 28 May 2013 14:18:53 Sebastian Süsens wrote:
> I have build the system with MACHINE_EXTRA_RRECOMMENDS += "
> kernel-modules" at the machine configuration.
> When I look into the rootfs.tar archive I see no modules installed in
> /lib/modules. I get only a modules.tar archive at the deploy folder.
> 
> How do I get the modules into the rootfs?

This will only work if your image includes packagegroup-base, as noted
in the glossary entry for this variable:

http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-MACHINE_EXTRA_RRECOMMENDS

Presumably the image you are building does not include packagegroup-base
(or more specifically, packagegroup-machine-base)?

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: How do I get the kernel modules into rootfs?

[Katu Txakur]

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Hi Sebastian,
if you read this
https://www.yoctoproject.org/sites/yoctoproject.org/files/elc2013-kernel-lab.pdf
you might find a solution for your problem. Check lab 3.

Thanks,
Katu


2013/5/28 Paul Eggleton <paul.eggleton@linux.intel.com>

> On Tuesday 28 May 2013 14:18:53 Sebastian Süsens wrote:
> > I have build the system with MACHINE_EXTRA_RRECOMMENDS += "
> > kernel-modules" at the machine configuration.
> > When I look into the rootfs.tar archive I see no modules installed in
> > /lib/modules. I get only a modules.tar archive at the deploy folder.
> >
> > How do I get the modules into the rootfs?
>
> This will only work if your image includes packagegroup-base, as noted
> in the glossary entry for this variable:
>
>
> http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-MACHINE_EXTRA_RRECOMMENDS
>
> Presumably the image you are building does not include packagegroup-base
> (or more specifically, packagegroup-machine-base)?
>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto
>

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Re: How do I get the kernel modules into rootfs?

[Paul Eggleton]

On Tuesday 28 May 2013 15:57:50 Sebastian Süsens wrote:
> On 05/28/2013 03:03 PM, Paul Eggleton wrote:
> > On Tuesday 28 May 2013 14:18:53 Sebastian Süsens wrote:
> >> I have build the system with MACHINE_EXTRA_RRECOMMENDS += "
> >> kernel-modules" at the machine configuration.
> >> When I look into the rootfs.tar archive I see no modules installed in
> >> /lib/modules. I get only a modules.tar archive at the deploy folder.
> >> 
> >> How do I get the modules into the rootfs?
> > 
> > This will only work if your image includes packagegroup-base, as noted
> > in the glossary entry for this variable:
> > 
> > http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-MA
> > CHINE_EXTRA_RRECOMMENDS
> > 
> > Presumably the image you are building does not include packagegroup-base
> > (or more specifically, packagegroup-machine-base)?
> 
> now I build the system with packagegroup-base and it works.
> Can I build the rootfs which include modules without the packagegroup-base?

kernel-modules is just a package, so you can include it in IMAGE_INSTALL just 
like any other package name (although this may not be the most appropriate 
solution).

Alternatively, if you have a list of kernel modules that are required for 
booting you can have them installed in any image that uses packagegroup-core-
boot by adding them to MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS.

Cheers,
Paul

PS please keep replies CC'd to the mailing list, thanks.

-- 

Paul Eggleton
Intel Open Source Technology Centre