Nvidia cards and Fedora 22 kernel upgrades

[Richard Shaw]

On Thu, Jul 23, 2015 at 10:58 AM, Roderick Johnstone <rmj at ast.cam.ac.uk>
wrote:

> On 23/07/15 15:36, Richard Shaw wrote:
>
>> Oh, but wait, kernels get installed, not upgraded, so I see your point
>> except that on my systems I do seem to have kernel-devel for each kernel
>> thats installed and I only installed kernel-devel once. Maybe though this
>> is a yum/dnf behaviour change - I use yum-deprecated rather than dnf for
>> nightly updates.
>>
>
That's likely the issue. I thought the same as well but noticed I only have
one kernel-devel package installed (and it wasn't even the latest one!) dnf
still needs some polishing for sure!



> Ok, now that that's covered I have a crazy idea... For systemd service
>>
> type "oneshot" which the akmod service is, you can have multiple
>> ExecStart= directives. Why couldn't we have two, something like:
>>
>> [Service]
>> Type=oneshot
>> RemainAfterExit=true
>> ExecStart=/usr/sbin/akmods --from-init
>> ExecStart=-/usr/sbin/modprobe nvidia
>>
>> Anything know why that wouldn't work? That should fix the problem with
>> building modules on startup.
>>
>
> That might be ok but I don't know enough about systemd to know if the two
> ExecStart lines are run synchronously. Maybe you need the --force as well
> on the akmods line?
>

No, with oneshot+multiple ExecStart's they are run in order, the first one
must exit (and exit cleanly) before the next one is executed.

I'm not sure if you noticed that I moved the "-" at the beginning. This
tells systemd to treat it like it succeeds even if it fails (non-zero
exit). Since there's no point in running modpobe if akmods failed i moved
it to the modprobe line.

I don't want to use --force in case there's a real problem with building
the rpms, but I altered the akmods script (I hope correctly) to not treat
failure to install a permanent failure so it should try again the next time
akmods is run.



> Later...I just tested it and it worked!
>

Good to hear! Anyone want to try a testing package? I don't want to build
an official package yet because we still don't have bodhi for updates so
there's no way to stop it from being pushed to stable without a direct
email to a human.

Thanks,
Richard
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