Hi,
just for info, recently I have migrated two ovirt 4.4.8 installations to
Rocky Linux 8.5. Everything went smoothly and it was as simple as
curl
https://raw.githubusercontent.com/rocky-linux/rocky-tools/main/migrate2rocky/migrate2rocky.sh
-o migrate2rocky.sh
chmod u+x migrate2rocky.sh
./migrate2rocky.sh -r
on hosts and after that the same on HE (in my case also with upgrade to
4.4.9)
One of these systems was HCI and everything looks good.
Happy new year to all of oVirt (and Gluster, CentOS, Rocky,...) teams ;-)
Cheers, Jiri
On 11/9/21 09:46, Jiří Sléžka wrote:
Hi,
On 11/8/21 21:38, Christoph Timm wrote:
Hi Gianluca,
I have a self hosted platform with plain CentOS 8.4 host. Also my
engine is currently running CentOS 8.4.
I updated my whole system from 4.4.7 to 4.4.9.
As 4.4.9 does not support CentOS hosts I had to migrate them to CentOS
Stream 8 as well.
Due to dependency issues I have put the host into maintenance mode and
did the rest through CLI.
# dnf swap centos-linux-repos centos-stream-repos
# dnf update ovirt-release44
# dnf distro-sync
# reboot
Done
Thanks for this. I think this should be documented better because it
confuses me a bit.
I run small HCI cluster on CentOS8.4 hosts and would like to know valid
migration paths. Sure, one is CentOS Strem. Is onother one RHEL 8.4? It
looks like not (from release notes for 4.4.9: "This release is available
now for Red Hat Enterprise Linux 8.5 Beta (or similar) and CentOS
Stream"). Did anybody even try migrate CentOS hosts to Rocky Linux?
In this case I prefer to migrate to stabe RHEL clone distro and stay a
bit behind oVirt releases.
What is your opinion, does it make sense?
Thanks in advance,
Jiri
I did not change the engine OS aa CentOS 8.4 is still supported here.
Also I did the update in multiple steps over a couple of days which
did not cause any issue on my side.
Hope this helps.
Best regards
Christoph
Am 08.11.21 um 13:41 schrieb Gianluca Cecchi:
I have a lab with an environment based on 4.4.8.6-1, with 3 CentOS
Linux 8.4 hosts and a CentOS 8.4 external engine system (that is a VM
on vSphere, so that I can leverage a snapshot methodology for the
process...).
I would like to pass to 4.4.9 and retain a full plain OS on hosts for
the moment, without going through oVirt nodes, but standing the repo
problems and CentOS 8.x going through EOL this is what I'm planning
to do:
1. stop engine service on engine system
2. convert engine to CentOS Stream
This step needs some confirmation.
Could you provide an official link about the process?
I'm not able to find it again. Is it a problem of mine or all (CentOS
website, RHEL website) seem to point only to conversion from CentOS
Linux to RHEL??
Apart external websites provided workflows, I was only able to find a
mid January youtube video, when CentOS was based on 8.3, with these
steps:
yum install centos-release-stream
yum swap centos-{linux,stream}-repos
yum repolist
yum distro-sync
reboot
The video link is here:
https://www.youtube.com/watch?v=Ba2ytp_8x7s
No mention at
https://www.redhat.com/en/blog/faq-centos-stream-updates
And on CentOS page I only found this:
https://centos.org/distro-faq/
with Q7 containing only the two instructions:
dnf swap centos-linux-repos centos-stream-repos
dnf distro-sync
What to use safely?
Is it possible to include some sort of documentation or links on
oVirt page, to migrate from CentOS Linux to CentOS Stream for oVirt
upgrade purposes?
3. After reboot implied, I think, in step 2., use the usual steps to
update engine to 4.4.9
4. update the first out of three hosts from CentOS Linux to CentOS
Stream and to 4.4.9.
4.a follow the same approach of engine (when defined) and pass it to
Stream retaining the 4.4.8.
4.b upgrade from the web admin gui to 4.4.9
5. Do the same for second host and third hosts
Any hints, comments, limitations in having mixed 4.4.8 and 4.4.9
hosts for a while and such?
Thanks,
Gianluca
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