[lustre-discuss] RHEL 9.8 and 10.2 support

[David Cohen]

Hi Peter,
For the EL 10.1 client I was using version 17.0 which was the only version
to support EL 10. After upgrading to EL 10.2 the client lost the storage
mount.
I'm not updating the EL9.7 clients, not to risk losing the storage mount.
They are running the 2.15 LTS Lustre.
On the servers I am still using the 2.15 version on EL 8.10 as I prefer to
use the LTS version, and there is no LTS server support beyond EL 8.10.
This complex matrix just emphasizes how much Lustre is a restrictive factor
for upgrades.

David


On Mon, Jun 1, 2026 at 4:48 PM Peter Jones <pjones at thelustrecollective.com>
wrote:

> David
>
> Could you please clarify what version of Lustre you are using today for
> both servers and clients? Also, are you using ldiskfs or ZFS as the backend
> filesystem?
>
> Peter
>
> *From: *David Cohen <cdavid at physics.technion.ac.il>
> *Date: *Sunday, May 31, 2026 at 8:25 PM
> *To: *Peter Jones <pjones at thelustrecollective.com>
> *Cc: *lustre-discuss <lustre-discuss at lists.lustre.org>
> *Subject: *Re: [lustre-discuss] RHEL 9.8 and 10.2 support
>
> Hi Peter,
> The new kernel presented with EL 10.2 presents changes preventing DKMS
> from recompiling Lustre modules.
> There is even a Jira ticket following the issue since the beta,
> highlighting the security fixes in the new kernels.
> https://jira.whamcloud.com/browse/LU-20070
>
> David
>
>
>
> On Mon, Jun 1, 2026 at 12:19 AM Peter Jones <
> pjones at thelustrecollective.com> wrote:
>
> David
>
> Could you please elaborate as to what you feel is missing today? Lustre
> clients are patchless, so I would expect that if a security update is
> issued for a given supported release of RHEL that users would just apply
> the kernel update and weak updates would take care of the rest with no need
> to get any updates to Lustre...
>
> Peter
>
> *From: *lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on
> behalf of David Cohen via lustre-discuss <lustre-discuss at lists.lustre.org>
> *Date: *Sunday, May 31, 2026 at 5:31 AM
> *To: *lustre-discuss <lustre-discuss at lists.lustre.org>
> *Subject: *[lustre-discuss] RHEL 9.8 and 10.2 support
>
> Hi,
> With the latest critical kernel vulnerabilities, updates are no longer
> optional.
> This puts Lustre on the critical path for cluster security.
> Is there a plan to address this necessity by releasing Lustre client
> versions outside of the half a year cycle to support the new kernels?
>
> David
>
>
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