Kernel Updates

A sketch of how Birmingham has dealt with the Kernel Security incident. Based on this article, it looks like kernel-2.6.9-89.0.9 contains the relevant fixes.

WN test

Test plan:

Step	Expectation	Result
Reboot	Should come back up using new kernel.
Submit test job	ATLAS job should complete sucessfully.
Update kernel using yum	kernel-2.6.9-89.0.9.EL.i686 should be installed.	Confirmed

Reboot was initially unsuccessful for epgd01. Updated kernel did not appear in the grub menu, and returning to 2.6.9-78.0.13 caused a kernel panic as / fs label had changed. This was fixed by guess work - edited grub menu entry for kernel /vmlinuz-2.6.9-78.0.13.EL ro root=LABEL=/1, replacing LABEL=/1 with LABEL=/. This at least allowed the system to boot.

-- ChristopherCurtis - 27 Aug 2009