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jason0
August 16th, 2012, 01:17 AM
Hello,

My boss wants me to upgrade the ubuntu systems from 10.04lts to 12.04 lts. The big issue is that 12.04 uses kernel version 3. I need to compile lustre and infiniband drivers for this, but the source code won't work. (yet).

Is there a 2.6.x kernel version available with ubuntu 12.04 lts that I can switch to? If not, are there any particular dependencies on kernel 3.x in ubuntu 12 that would break with a 2.6 kernel?

Thanks for your time...

--jason

BkkBonanza
August 16th, 2012, 02:37 PM
You might try this info. I haven't done it.
Sounds like a few people out there want to avoid the new kernels for now.

https://wiki.ubuntu.com/Kernel/MainlineBuilds
and
http://delightlylinux.wordpress.com/2012/05/01/installing-a-kernel-in-ubuntu/

smartboyhw
August 16th, 2012, 02:39 PM
At least use 3.2. 12.04 LTS doesn't work as best on a 2.6 one.

jason0
September 28th, 2012, 09:36 PM
Hello,

It's been a while, and I appreciate your answers.

It's not that I wish to avoid kernel 3.x, it's that the lustre file system support does not compile under kernel 3.x at all. And, since we have an older version of lustre, I do not expect anyone to burn calories porting it.

Most of the pages pointed to talk about using (b)leading edge kernels with releases of ubuntu, not using an older kernel with a newer release.

Does anyone know where I could compare kernel 2.6 to kernel 3.x in terms of how they work with the 12.04 lts version of ubuntu? Or, how do I find out what will be deficient if I run kernel 2.6 in ubuntu 12.04?

Thanks!

--jason