[CentOS] Server dies after kernel upgrade

Thu Jul 4 22:01:20 UTC 2013
Ljubomir Ljubojevic <centos at plnet.rs>

On 07/04/2013 05:54 PM, Keith Keller wrote:
> On 2013-07-04, Chris Taylor <Chris.Taylor at corp.eastlink.ca> wrote:
>> I am running a server with CentOS release 6.4 (Final) and the kernel version of 2.6.32-279.19.1.el6.x86_64 and everything looks ok, but when I do a yum update on the kernel to update it to a newer version "2.6.32-358.11.1.el6".
>
> As Lubomir pointed out yesterday, the latest kernel is vulnerable to a
> DoS attack, so you should probably use a different one.  See Johnny's
> message for details, and an untested kernel that you could use instead:
>
> http://lists.centos.org/pipermail/centos/2013-July/135671.html
>
>> It will not restart after the required reboot. It will start to load until the task bar at the bottom gets to the end than it stops loading I have been patient with it unless it requires more time to start but after 10min it was still just sitting at the task bar.
>
> You can either try ctrl-d or ESC during the splash screen process (I
> don't remember exactly which one), or you can edit the grub command line
> when it runs on boot and remove the "rhgb" and "quiet" options from the
> kernel options.
>
> --keith
>

There are always 3 kernels available for boot. Only one gets updated. So 
first check if other two you have are booting properly.
Then you can list all available kernels with "yum list kernel 
--showduplicate" and select one and install it like "yum install 
kernel-2.6.32-358.6.2.el6.centos.plus" and see if this one works. If it 
does, you can use it.

A thing to check is if you need to recompile VM drivers for new kernels.

-- 
Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

StarOS, Mikrotik and CentOS/RHEL/Linux consultant