Hi Michel,

and what about using Almalinux for your build ? In my mind Almalinux is closest to REHL as Rocky linux kernels are more advanced. Just to maximize the compatibility of the x86_64 rpm.

Patrick

Le 31/07/2025 à 22:31, Michel Jouvin a écrit :
Hi Dan,

I think it would be a good move. Now that CentOS Stream has been repurposed as a RHEL upstream instead of downstream as it was initially, it really makes sense. I would not expect any trouble for CS users as the backward compatibility is maintained in CS as un RHEL The problem that happened with recent Ceph rebuilds is because CS by design introduces things not yet present in RHEL releases and it's derivatives.

Best regards,

Michel
Sent from my mobile
Le 31 juillet 2025 18:34:32 Dan van der Ster <dan.vanders...@clyso.com> a écrit :

Hi,

On Tue, Jul 29, 2025 at 8:06 AM Moritz Baumann <m...@mo.homeip.net> wrote:

I have problems upgrading ceph from

https://download.ceph.com/rpm-19.2.3/el9/x86_64/

and have broken dependencies on host running Almalinux 9.6

So:

ceph orch upgrade start --ceph_version 19.2.3

works,
but a dnf --refresh upgrade on ceph nodes gives broken dependencies

ceph-poc1[0]:~# dnf --refresh upgrade
...
Error:
  Problem 1: cannot install the best update candidate for package
ceph-common-2:19.2.2-0.el9.x86_64
   - nothing provides libcrypto.so.3(OPENSSL_3.4.0)(64bit) needed by
ceph-common-2:19.2.3-0.el9.x86_64 from Ceph

Thanks for sharing this. The upstream build team is aware of this (and
the same issue in reef) and actively are working on a path forward.
It's unfortunate that Stream broke compatibility this way -- the team
is testing the impact if we move to Rocky 9 going forward for
reef/squid.

One concern is if such a change might similarly break our Stream 9
users -- but... are there any Stream 9 users out there?

Cheers, dan

--
Dan van der Ster
Ceph Executive Council | CTO @ CLYSO
Try our Ceph Analyzer -- https://analyzer.clyso.com/
https://clyso.com | dan.vanders...@clyso.com
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