Bug 891691 – sys-kernel/gentoo-kernel: Error (installing?) nouveau firmware to /lib/firmware/nvidia

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Mirko Guenther 2023-01-22 10:59:11 UTC]

I'm try to switch from 'gentoo-sources' to 'gentoo-kernel' (6.1.7)
Compiling the 'gentoo-sources' package works fine, with 'gentoo-kernel' I get always an error building the nouveau driver.

'make[6]: stat: /lib/firmware/nvidia/gp108/sec2/desc.bin: Permission denied' and more

Reproducible: Always



Expected Results:  
works same as with 'gentoo-sources' package

[Comment 1 Mirko Guenther 2023-01-22 11:01:00 UTC]

Created attachment 848985 [details]
Build log

[Comment 2 Michał Górny 2023-01-23 07:09:59 UTC]

Hmm, that's interesting.  I presume you're using the generic config and not a customized kernel config?

Our -bin builds are done on top of installation image without linux-firmware installed, so I guess this is not strictly necessary.

However, this also seems to indicate a permission problem.  FWICS all files installed by linux-firmware are world-readable.  Not sure if this is necessarily the best approach, though.

[Comment 3 Michał Górny 2023-01-23 07:11:09 UTC]

Oh wait, you are using a custom config.  Please include your config then.

[Comment 4 Mirko Guenther 2023-01-23 10:38:42 UTC]

Created attachment 849079 [details]
Kernel Config

This config work with 'gentoo-sources'

[Comment 5 Mirko Guenther 2023-01-23 10:40:42 UTC]

'sys-kernel/linux-firmware' is installed on my system.

[Comment 6 Michał Górny 2023-01-23 11:31:46 UTC]

What are the directory permissions all the way down to:

/lib/firmware/nvidia/gp108/sec2/desc.bin

?

[Comment 7 Mirko Guenther 2023-01-28 13:15:00 UTC]

Created attachment 849357 [details]
firmware file permissions

I've dumped the whole tree of 'nvidia' firmware installed by 'sys-kernel/linux-firmware'

[Comment 8 Michał Górny 2023-01-28 13:18:26 UTC]

(In reply to Mirko Guenther from comment #7)
> Created attachment 849357 [details]
> firmware file permissions
> 
> I've dumped the whole tree of 'nvidia' firmware installed by
> 'sys-kernel/linux-firmware'

I don't see anything obviously wrong here, though portage:portage ownership looks suspicious.  Please list the parent directories as well.

[Comment 9 Mirko Guenther 2023-02-05 09:02:11 UTC]

Created attachment 849888 [details]
dump whole firmware directory

I've attached the whole firmware directory

[Comment 10 Michał Górny 2023-02-05 10:33:55 UTC]

[drwx------ root     root    ]  firmware

That's your problem.  If unprivileged users can't access firmware files, you can't expect userpriv builds to work.