[Buildroot] BuildRoot not starting with Udev

Antoine Caurier antoine.caurier at gmail.com
Thu Oct 18 07:38:52 UTC 2012


Yes, it is exactly what I did.
And yes it work after reconfiguring the kernel an compiling it!

Thanks

On Wed, Oct 17, 2012 at 7:23 PM, Thomas Petazzoni
<thomas.petazzoni at free-electrons.com> wrote:
> Hello Antoine,
>
> On Wed, 17 Oct 2012 10:22:22 +0200, Antoine Caurier wrote:
>
>> I found one of your previous post, where you said that if kernel was
>> build by buildroot, it should be ok. So I was thinking that it should
>> be ok just activating udev as I am building kernel with buildroot.
>>
>> I tried to manually set DEVTMPFS in linux-menuconfig, and then
>> recompile the kernel (with buildroot), and it is now working.
>>
>> Is it normal to have manualy to set DEVTMPFS in kernel configuration
>> in order to have udev working?
>
> No, but it depends on what you did exactly.
>
> If you did:
>
>  1) Configure /dev management as static
>  2) Configure your kernel
>  3) Build Buildroot
>  4) Reconfigure /dev management as udev
>  5) Build Buildroot
>
> Then yes, it is normal: Buildroot doesn't try to be smart about
> this kind of dependency. If you change the /dev management style, you
> are responsible to restart the build of the kernel (make
> linux-dirclean; make) so that it gets a configuration that is
> compatible with a dynamic /dev management.
>
> Best regards,
>
> Thomas
> --
> Thomas Petazzoni, Free Electrons
> Kernel, drivers, real-time and embedded Linux
> development, consulting, training and support.
> http://free-electrons.com


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