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Re: Activate/deactivate kernel parameters without reboot




On Thu, Mar 29, 2018 at 11:28 PM, Stefan Monnier
<monnier@xxxxxxxxxxxxxxxx> wrote:
>> I'm running with a 'nouveau.noaccel=1' kernel parameter added at hand
> [...]
>> Is there any way to deactivate and reactivate such a parameter without
>> the need to reboot?
>
> You can try and change it with
>
>     # echo 0 > /sys/modules/<MODULENAME>/parameters/noaccel
>
>
> -- Stefan

Hi, thanks a lot.

I tried it in both situations with same result.

Deactivate:

# cat /sys/module/nouveau/parameters/noaccel
1
# echo 0 > /sys/module/nouveau/parameters/noaccel
bash: /sys/module/nouveau/parameters/noaccel: Permiso denegado

Activate:

# cat /sys/module/nouveau/parameters/noaccel
0
# echo 1 > /sys/module/nouveau/parameters/noaccel
bash: /sys/module/nouveau/parameters/noaccel: Permiso denegado


'Permiso denegado' means 'Permission denied'.


What else shoud/could I do?


Thanks again!