On Sat, 1 May 2010, maillists0@gmail.com wrote:
On Sat, May 1, 2010 at 4:37 PM, Akemi Yagi amyagi@gmail.com wrote:
On Sat, May 1, 2010 at 1:28 PM, maillists0@gmail.com wrote:
I want to upgrade a 5.4 box with the 2.618 kernel to a shiny new 2.6.32 kernel. Anyone done it? Is it possible? Are there gotcha's to watch out
for?
Any advice is appreciated. A link to a decent howto would be awesome.
You did not tell us why you want to run 2.6.32 on CentOS 5.4. I assume you are aware of backporting and 2.6.18 is not the same as vanilla kernel 2.6.18.
Having said that, if you really, really need to run/build such a new kernel, I advice you read through this CentOS forum thread in its entirety:
https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_i...
Thanks, Akemi. I really want to try the fs-cache feature to make an nfs caching proxy. It would be a godsend.
I was wondering whether the standard "make oldconfig" would work when making a version jump this large. Are my drivers likely to break?
RHEL5 actually used to ship FS-Cache as part of their 2.6.18 kernel. You can find an interesting article on LWN about this:
http://lwn.net/Articles/312708/
It used to be a technology preview up to 5.2, but I think it disappeared in the release notes of 5.3. And there is a bugzilla entry on to why:
https://bugzilla.redhat.com/show_bug.cgi?id=481579
Since FS-Cache was not mainlined, I think Red Hat ditched the idea of making it a supported option for the remaining 5 years of RHEL5. I guess testing with RHEL6 beta and then moving to CentOS 6 eventually is the safest option for production use.