Driver replacement

[Pasquale Cantiello]

Hello Frank,

I think this can be a good solution. My nodes are all identical (at
present), so a different basefile with the proper driver replaced can be a
good idea.
I will try!
Thanks and best regards

  Pasquale

---
ing. PhD Pasquale Cantiello
Istituto Nazionale di Geofisica e Vulcanologia
Sezione di Napoli - Osservatorio Vesuviano
Via Diocleziano, 328 - 80124 Napoli
Tel. 081-6108.332


Il giorno ven 26 feb 2021 alle ore 13:46 Frank Morawietz <
Frank.Morawietz at merckgroup.com> ha scritto:

> Hello Pasquale,
>
>
>
> if your compute nodes are identical and all of them need the Nvidia
> driver, you can use a basefile that already has Nouveau removed and Nvidia
> installed. Then there is no need for a Nvidia installation script at all.
>
>
>
> Just as an unconventional idea…
>
>
>
> Best,
>
> Frank
>
> --
>
> Frank Morawietz
>
>
>
> *Von:* linux-fai <linux-fai-bounces at uni-koeln.de> *Im Auftrag von *Pasquale
> Cantiello
> *Gesendet:* Donnerstag, 25. Februar 2021 11:14
> *Cc:* fully automatic installation for Linux <linux-fai at uni-koeln.de>
> *Betreff:* Re: Driver replacement
>
>
>
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>
> Dear John,
>
> thanks for your answer.
>
> Putting a script in the /srv/fai/config/scripts/ is the way I was trying
> but, if the system boots with the nouveau driver already installed, the
> sequence to install correctly the new one is:
>
>
>
> - blacklist the nouveau
>
> - reboot
>
> - install the proper nvidia driver
>
> - reboot again
>
> - continue with software installation
>
>
>
> And this sequence, I think, cannot be fully automated with those scripts.
>
> So I have been searching for a way to prevent the nouveau installation
> since the beginning. I will study the fai-scripts in order to better
> understand how this happens.
>
>
>
> Best regards
>
>
>
>   Pasquale
>
>
>
> ---
>
> ing. PhD Pasquale Cantiello
>
> Istituto Nazionale di Geofisica e Vulcanologia
>
> Sezione di Napoli - Osservatorio Vesuviano
>
> Via Diocleziano, 328 - 80124 Napoli
>
> Tel. 081-6108.332
>
>
>
>
>
> Il giorno mer 24 feb 2021 alle ore 14:15 John G Heim <jheim at math.wisc.edu>
> ha scritto:
>
> FAI works a lot like an installation you'd do "by hand". You boot from a
> live image, partition the hard drive, install a base system via
> debootstrap then chroot to do the rest of the installation steps
> (install a kernel, install packages, configure grub). So, if you want to
> blacklist a module, you have to do it on the new system, not on the live
> boot image. In other words, in your case, you'd have to fcopy the module
> configuration files to the new system after the base system is
> installed. This is done by putting a script in the scripts folder of
> your FAI config root. By default this would be /srv/fai/config/scripts/.
>
> On 2/24/21 4:20 AM, Pasquale Cantiello wrote:
> > Hi all
> >
> > I'm new to fai (only two weeks) and trying to use it to install a
> > cluster with a front-end and 10 compute nodes. At present stage I am
> > able to install all machines with related software and little
> > customization from the faiserver with almost no problem.
> >
> > Now, since the nodes have a GPU card I want to install the nvidia driver
> > and related sdk to the frontend and all nodes. I've downloaded all the
> > files (.run file for driver and .deb files for sdk) on faiserver and put
> > them in nfsroot in order to launch the installation on the nodes.
> >
> > My problems are now:
> > How to prevent the installation of the nouveau driver on nodes? This
> > will conflict with the new driver. I've also put a modeprobe.conf file
> > with blacklist in /nfsroot/etc/modeprobe.d/ but with no success.
> >
> > And, how to use the PRELOAD or PRELOADRM command in the package
> > configuration to install sdk from nfsroot? I've found no samples and
> > tried all combinations...
> >
> > Thanks in advance to all who can help me.
> >
> > Best regards
> >       Pasquale
> >
> > ---
> > ing. PhD Pasquale Cantiello
> > Istituto Nazionale di Geofisica e Vulcanologia
> > Sezione di Napoli - Osservatorio Vesuviano
> > Via Diocleziano, 328 - 80124 Napoli
> > Tel. 081-6108.332
>
>
>
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