TWiki
>
Computing Web
>
GridKernelUpdate
(27 Aug 2009,
_47C_61UK_47O_61eScience_47OU_61Birmingham_47L_61ParticlePhysics_47CN_61christopher_32curtis
?
)
(raw view)
E
dit
A
ttach
---+ Kernel Updates A sketch of how Birmingham has dealt with the Kernel Security incident. Based on [[http://freshmeat.net/articles/red-hat-updated-kernel-packages-fix-two-security-issues-4][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=). -- Main.ChristopherCurtis - 27 Aug 2009
E
dit
|
A
ttach
|
Watch
|
P
rint version
|
H
istory
: r2
<
r1
|
B
acklinks
|
V
iew topic
|
WYSIWYG
|
M
ore topic actions
Topic revision: r2 - 27 Aug 2009
-
_47C_61UK_47O_61eScience_47OU_61Birmingham_47L_61ParticlePhysics_47CN_61christopher_32curtis
?
Computing
Log In
Computing Web
Create New Topic
Index
Search
Changes
Notifications
RSS Feed
Statistics
Preferences
Webs
ALICE
ATLAS
BILPA
CALICE
Computing
General
LHCb
LinearCollider
Main
NA62
Publish
Sandbox
TWiki
Welcome
Copyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki?
Send feedback