Thanks, Patrick! I do realize I'm off in development territory here and that is the mandate of my project so we're expecting a little "see what happens". I decided it would be better to try our luck on Lustre-dev on a newer, 3.x kernel, than go back to 2.6.x and try to run i.e. MD with older, perhaps more stable, Lustre. I had some unpleasant experiences with MD RAID back on 2.6.x and I'm not eager to see if it acts any differently on CentOS versus Ubuntu! :O I will give that a try and I'll report back to the list if I encounter anything strange or something  that smells like a potential bug.

Best,

Sean


On Fri, Jun 12, 2015 at 4:35 PM, Patrick Farrell <paf@cray.com> wrote:
Sean,

Just a heads up first: Remember you're installing an unreleased development version.  It has not seen the testing and finalization of a release version.  You're basically signing up to experience some extra bugs that wouldn't be in a release version.

That said, if you're going to run that version, you want to run the latest e2fsprogs, which you linked at the end.  They install over the top.

- Patrick
________________________________________
From: HPDD-discuss [hpdd-discuss-bounces@lists.01.org] on behalf of Sean Caron [scaron@umich.edu]
Sent: Friday, June 12, 2015 3:16 PM
To: hpdd-discuss@lists.01.org; Sean Caron
Subject: [HPDD-discuss] Which e2fsprogs on Centos 7 with most recent Lustre     2.7.x build from Git?

Hi all, quick question; I got all my packages built and I'm going through installing and now I'm looking at section 30.4.1; it steers me to this URL:

https://wiki.hpdd.intel.com/display/PUB/Lustre+Releases

At that URL, regarding e2fsprogs, it just has the somewhat cryptic note:

"Users are encouraged to always run the latest version of e2fsprogs on their servers."

Does this mean there is no longer a separately maintained e2fsprogs for Lustre ... I can just use the stock package in CentOS 7?

If I go to the slightly different URL:

https://wiki.hpdd.intel.com/display/PUB/Lustre+Tools

It's telling me to go to the Whamcloud site and download what they have ... but the revision on this page is 2012, so maybe that's stale information?

Or ... I see there are actually packages available using CentOS/RHEL 7 available here:

https://downloads.hpdd.intel.com/public/e2fsprogs/latest/el7/

Install those over the stock e2fsprogs that comes with CentOS 7?

Thanks,

Sean