[CentOS] Kernel panic after update to 6.4

On 2013-03-13, Emmett Culley <emmett at webengineer.com> wrote:

(...)

> So let's start again.
>
> Kernel panic - Not syncing: Attempted to kill init!
> Pid: 1, comm: init not tainted: 2.6.32-358.0.1.el6.x86_64 #1
>
> After yum upgrade --enablerepo=epel on two of five machines, one of which is the host for the three VM's that succeeded and the one that failed, just as the host.
>
> I have a screen shot of that VM's boot failure, but I don't know the proper way to include it in a post.
>
> I've uninstalled that kernel and ran yum upgrade again, it still fails on that kernel, on both the host and the VM.  I suppose the good thing is that it happened on a VM guest that is not critical, so I don't have to experiment with the host that has four important guests running on it.
>
> Any ideas?
>
> Emmett

I saw this problem on one machine I upgraded from 6.3 to 6.4 recently.
When I boot it in verbose mode I see the following messages:

	dracut: /proc/misc: No entry for device-mapper found
	dracut: Failure to communicate with kernel device-mapper driver

which led me to the following bug report:

	http://bugs.centos.org/view.php?id=6304

Just today kernel 2.6.32-358.2.1 became available. The problem is still
present, but only on the same one machine.

-- 

Liam