3:32 p.m.
On Wed, Feb 16, 2022 at 2:09 PM Gianluca Merlo <gianluca.merlo(a)gmail.com> wrote:
Il giorno mer 16 feb 2022 alle ore 10:22 Yedidyah Bar David <didi(a)redhat.com> ha
scritto:
>
> On Tue, Feb 15, 2022 at 6:48 PM Gianluca Merlo <gianluca.merlo(a)gmail.com>
wrote:
> >
> > Hi Jonas,
> >
> > I would like to say that I also have a 4.4 HE (4.4.5.11-1) that I am trying to
upgrade to the latest one, and have this issue. I read through
> >
> >
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/D3FEXQ5KOLN3...
> >
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/4EBNIFJ3ANER...
> >
> > but did not manage to get out of the issue. I tried:
> >
> > - yum remove ovirt-release44
> > - Download and install manually (rpm -i)
https://resources.ovirt.org/pub/yum-repo/ovirt-release44.rpm
> >
> > After this I have regained a functional package manager on the engine. However
trying to go further in the update procedure
(https://ovirt.org/documentation/upgrade_guide/#Updating_a_self-hosted_eng...)
running
> >
> > engine-upgrade-check
> >
> > fails with
> >
> > > OK: Downloaded CentOS Linux 8 - AppStream
> > > FAIL: Failed to download metadata for repo 'appstream': Cannot
prepare internal mirrorlist: No URLs in mirrorlist
> > > Error: Failed to download metadata for repo 'appstream': Cannot
prepare internal mirrorlist: No URLs in mirrorlist
> >
> > So I am stuck in wait of a comment from someone more knowledgeable too!
>
> Did you upgrade the machine to CentOS Stream? CentOS Linux archives are gone.
No, I did not do anything apart from trying to fix sources set up from ovirt-release44.
May I ask if you could share some guidance on the process?
Sorry, I only did this on very few development machines, so do not
have any significant "real life experience" to share.
I can see that various third parties provide their "guide"
on how to perform the migration, the most "neutral" one I could find is
https://unix.stackexchange.com/questions/552873/how-to-switch-from-centos...
but I am having a hard time finding any "official" documentation from CentOS
I think the "official" doc is:
https://www.centos.org/centos-stream/ -> Press "8" -> check
"Converting from CentOS Linux 8 to CentOS Stream 8"
This is very similar to, and slightly more specific/safe, than:
https://centos.org/distro-faq/#q7-how-do-i-migrate-my-centos-linux-8-inst...
The stackexchange answer above is also slightly more detailed than
both of these, based on a specific user's experience.
I definitely recommend trying first on test machines, as similar as
possible to your production ones.
or oVirt.
You are right - there are no oVirt-specific migration procedures I am aware of.
May I also ask if this is the way to do it on Hosted Engine (not
standalone) deployments, or may it be that there are easier ways to accomplish this in
this scenario (e.g. redeployment from newer image)?
There is a way, which is to follow the general hosted-engine
backup/restore procedure. This isn't an in-place upgrade - requires a
new storage space for the hosted-engine domain, etc.
The appliance that the oVirt project releases is based on Stream since
4.4.6 IIRC. Same for ovirt-node - so if you use node, the normal
upgrade process for it will get you Stream.
It would be nice to know if there is any documentation I missed on
how to best handle the Centos 8 -> Centos 8 Stream conversion in my case (which is
hosted engine on ovirt-node hosts).
See above. I don't think you'll find anything more specific or
official. I recommend searching this list's archive - we had several
relevant threads over the last year - and testing on copies/clones of
your existing ones, if in production.
Again good luck, best regards,
--
Didi