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Greetings ...

I need to know what anyone should do after upgrading the kernel ? How to do quick check if the kernel is suited for the server's softwares , check whether if kernel is compilable with cpanel that currently installed etc .

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All that should have been tested on a test machine. – John Gardeniers Apr 18 '10 at 11:09
+1 for the test machine - you really don't want experimenting with new kernels on production servers – Prof. Moriarty Apr 18 '10 at 12:10
I like the idea of doing all this after the fact on the production system - brings back some much needed suspense into daily routine... :) – Sven Apr 18 '10 at 13:18
After you upgrade you should reboot and start using it – Rob Olmos Nov 4 '10 at 4:51

I have an idea that you could try to use qemu snapshot option and some config imitating your original server config.

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