[elrepo] yum-plugin-nvidia breaks systems

[Phil Perry]

On 27/11/2018 20:46, Orion Poplawski wrote:
> On 11/27/18 12:41 PM, Phil Perry wrote:
>> On 27/11/2018 19:08, Orion Poplawski wrote:
>>> On 11/27/18 11:37 AM, Akemi Yagi wrote:
>>>> On Tue, Nov 27, 2018 at 10:15 AM Orion Poplawski <orion at nwra.com> wrote:
>>>>>
>>>>> This morning a laptop without an nVidia card in it installed the following:
>>>>>
>>>>> Nov 27 03:42:21 Installed: yum-plugin-nvidia.noarch 1.0.2-1.el7.elrepo
>>>>> Nov 27 03:46:19 Installed: kmod-nvidia.x86_64 410.78-1.el7_6.elrepo
>>>>> Nov 27 03:48:22 Installed: nvidia-x11-drv.x86_64 410.78-1.el7_6.elrepo
>>>>> Nov 27 03:50:43 Installed: nvidia-x11-drv-32bit.x86_64 410.78-1.el7_6.elrepo
>>>>>
>>>>> effectively breaking it.  I don't know why they got installed, the system
>>>>> just
>>>>> did an automatic update via yum-cron.
>>>>
>>>> I have no idea why your yum-cron suddenly decided to install those
>>>> nvidia packages. Do you have any log file to look at? Some package(s)
>>>> pulled them in???
>>>>
>>>> Akemi
>>>
>>> Unfortunately there is no log of the depsolving that went into that
>>> transaction.  And I cannot reproduce it now by undoing that transaction and
>>> running and update again - possibly because new updates have arrived in the
>>> sl-security repo changing the transaction.
>>>
>>> I'll also note that on one system with the nvidia driver already installed, it
>>> decided to install nvidia-x11-drv-32bit.x86_64 as well.
>>>
>>> I can only think that it decided that it was a better fit for something like
>>> libEGL.so.1 than mesa-libEGL was.
>>>
>>>
>>
>> It's almost certainly nvidia-x11-drv that has caused the issue, and in turn
>> pulled in kmod-nvidia and yum-plugin-nvidia as dependencies.
>>
>> Please could you show the output from:
>>
>> rpm -q --whatrequires nvidia-x11-drv
> 
> no package requires nvidia-x11-drv
> 
> but that's not un-expected :).
> 
>> I think you are right above. The current nvidia-x11-drv package provides a
>> number of components that are also provided on rhel7.6 by libglvnd* and
>> mesa-libGL, mesa-libEGL and mesa-libGLES packages.
>>
>> Yum isn't fussy what package meets a dependency, so long as it is met. My
>> guess is yum has chosen nvidia-x11-drv to meet a dependency that should have
>> been met by one/some of the packages above.
>>
>> If you try to 'yum erase nvidia-x11-drv' and look at the packages being
>> removed for dependencies, that may give you a clue but initially I would be
>> looking at the packages above (don't follow through if it's going to uninstall
>> half the system!). The 'rpm' command above should also provide you with some
>> clues what pulled it in.
>>
>> Assuming we are correct above, this should be fixed in the next release -
>> sorry for the inconvenience.
>>
>> Phil
> 
> I was able to remove the nivida packages without anything else needing to be
> removed - so something else must have been brought in as well to satisfy the
> dependencies as well.
> 

That's interesting. I'm not 100% sure what happened or why. I had no 
issue updating a non-nvidia RHEL7 system with elrepo enabled, so I'm not 
entirely sure why yum pulled in nvidia packages on your system but not 
on mine.

Thanks for reporting it though, and glad it was easy to resolve.