[lustre-discuss] Kernel/OS/Lustre version matching

[Peter Jones]

The short answer is that it will likely work but has not been formally tested.

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Steve Brasier <steveb at stackhpc.com>
Date: Friday, December 11, 2020 at 2:41 AM
To: "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] Kernel/OS/Lustre version matching

Hi all, I hope I haven't missed something obvious in the docs here but I am confused about versions.

I'm trying to install the lustre client on a Centos 8.2 system with the 4.18.0-193 kernel, which is an un-updated kernel.

The client install instructions at [1] say to look at the changelog [2] for the list of supported kernels. There, that kernel is only listed against the unreleased 2.14.0 version. However the Lustre Support Matrix at [3] shows RHEL 8.2 as a client using 2.12.5. Does that mean 2.12.5 will work with the above kernel, or should I use another kernel with that OS version? If the former, how come it's not listed in the changelog?

On a related note the changelong only shows 2.x.0 versions - is kernel compatibility the same for all 2.x.y versions for the same x?

many thanks for any help
Steve

[1]: https://wiki.lustre.org/Installing_the_Lustre_Software#Lustre_Client_Software_Installation
[2]: https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob_plain;f=lustre/ChangeLog
[3]: https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix


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