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
Tested update on epgd01.
uname -a
returns a kernel version of
2.6.9-78.0.13.ELsmp
.
Test plan:
Step |
Expectation |
Result |
Update kernel using yum |
kernel-2.6.9-89.0.9.EL.i686 should be installed. |
Confirmed |
Reboot |
Should come back up using new kernel. |
Confirmed |
Submit test job |
ATLAS job should complete sucessfully. |
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.
Grub entries were missing for
kernel-2.6.9-89.0.9
, so they were added manually. Reboot appeared to work.
Full Deployment
Rolled out to all Grid resources.
epgd06
did not reboot.
epgse1
and
sr1
booted into the old version. Fixed by another reboot (manual in the case of
epgd06
).
--
ChristopherCurtis - 27 Aug 2009
Topic revision: r2 - 27 Aug 2009
- _47C_61UK_47O_61eScience_47OU_61Birmingham_47L_61ParticlePhysics_47CN_61christopher_32curtis?