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We plan to use OCFS2 in a project running Red Hat Enterprise Linux (RHEL) 5.6 because we found OCFS2 to be much simpler to set up than GFS.

I am, however, worried about the upgrade process since I understand OCFS2 depends on the kernel version number. If I perform yum update on my RHEL host I might receive a newer kernel version. What would be the correct way to keep OCFS2 updated and working?

What is the best practice to have an OCFS2 system that runs a long time and also gets kernel updates?

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I just saw that the guys are Oracle have only made OCFS2 available for their own kernel. I cannot see the source to it or patches for the vanilla kernel anywhere on their website. Am I missing something? –  wzzrd Apr 15 '11 at 13:37
    
Hi, you can grab OCFS2 off their project website. Just make sure you get the right kernel version then you can use it with RHEL/CentOS, etc. oss.oracle.com/projects/ocfs2 –  Stephan Apr 18 '11 at 15:01
    
Yeah, I should have said "the 1.6 version of OCFS2". The older version (1.2 and 1.4) are available as source downloads and (as I see it) have been merged upstread. If anyone can point to a source download of the 1.6 version of ocfs2, that would be grand. –  wzzrd Apr 19 '11 at 7:44

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We have exclude = kernel* in our yum.conf file to avoid this exact problem. I should add that we only kernel update when there is a urgent need to do so and when oracle blesses the kernel

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If I perform yum update on my RHEL host I might receive a newer kernel version

Are you sure? AFAIK, the whole point of RHEL is not to change anything on the same system release. You just get bugfixes, not upgrades.

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Unfortunately I am sure. Also RHEL bounces you from 5.5 to 5.6 without you really noticing. I have had several kernel updates during the last few months. You can imagine my surprise when I found out. –  Stephan Apr 13 '11 at 19:37

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