On 14/03/2014 4:37 AM, Mark Whidby wrote:
> On Thu, 2014-03-13 at 16:34 -0400, Larry Linder wrote:
...
>> Second question: How do you turn automatic updates OFF.
>
> Normally the kernel is excluded from automatic updates so I would
> say that it is unlikely to have been an automatically installed
> kernel that has caused this.
>
> The file /etc/sysconfig/yum-autoupdate has an setting for controlling
> automatic updates, and it also has the setting for which RPMs are
> excluded from being automatically updated. I would check this file and
> the yum.log to further investigate. And, as Connie suggested, you
> should be able to boot from an older kernel at the grub menu.

This is true if yum-autoupdate is installed and being used for automatic 
updates.  However, it's also possible to have updates enabled via 
yum-cron (particularly in the case of earlier systems upgraded to SL6), 
in which case the above won't apply.

In addition to controlling whether or not the update kernels are 
actually installed, you can also control whether or not they'll be set 
as the default kernel.  You can do that by changing the value of 
UPDATEDEFAULT in the /etc/sysconfig/kernel file.  (I find this is a good 
safety feature, in any case, particularly on systems where kernel 
updates can break things.  You can still install the update, but you're 
in full, manual control of if/when that new kernel gets booted.)

-- 
Gilbert E. Detillieux		E-mail:	<[log in to unmask]>
Dept. of Computer Science	Web:	http://www.cs.umanitoba.ca/~gedetil/
University of Manitoba		Phone:	(204)474-8161
Winnipeg MB CANADA  R3T 2N2	Fax:	(204)474-7609