Re: [CentOS] 7.2 kernel panic on boot

On Thu, Dec 03, 2015 at 09:29:21AM +0000, Duncan Brown wrote:

Hi All

After upgrading to 7.2, I'm getting an immediate kernel panic on boot

Dropping back to 3.10.0-229.20.1.el7.x86_64 and the system boots fine

How can I go about diagnosing the problem here?

It'd probably help if you could give us more details on the kernel panic.

Can you see where it is panicking? Does it happen during the kernel/initrd stage or later during boot?

I suggest installing the kdump service if it is panicking later in boot, you might be able to capture a kernel dump which makes debugging these things a lot easier. Otherwise, I suggest trying to capture the panic message some other way.