On Thu, Dec 3, 2015 at 5:44 AM, Duncan Brown <centos2 at duncb.co.uk> wrote: > On 03/12/2015 13:33, Jonathan Billings wrote: >> >> 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. >> > The last message before it is "switching to clocksource hpet" > > Then the panic scrolls by Maybe an issue with X. Look into /var/log/Xorg.0.log for hints. Or, does it boot fine in single user mode? Akemi