Bug#996468: closed by Andreas Beckmann <anbe at debian.org> (Re: Bug#996468: nvidia-kernel-dkms won't install for kernel 5.14.0-1 and 5.14.0-2)

[Andreas Beckmann]

On 10/11/2021 14.13, mando at april.org wrote:
> Dear maintainers
> 
> I finally found how to fix the problem to address the problem:
> 
> ERROR: Kernel configuration is invalid.";
> \include/generated/autoconf.h or include/config/auto.conf are missing."$
>   Run 'make oldconfig && make prepare' on kernel src to fix it.";
> 
> ... thanks to this link:
> 
> https://askubuntu.com/questions/890712/kernel-configuration-is-invalid-error-while-trying-to-install-paragon-ufsd-profe 
> 
> 
> By reinstalling the kernel headers, the nvidia driver is successfully 
> installed:

Do you know what corrupted your header installation?
It may happen again ...
Do you use some "weird third party software" that could to this, 
probably another kernel module.
I don't think it is the nvidia driver since I've never seen such 
behavior while testing the kernel module build.
(But I vaguely remember some other *-dkms packages breaking the build of 
subsequently installed kernel modules, but these should be all fixed on 
bullseye and beyond).

Andreas