Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have recently bought a new faster server and so I want to start migrating things over to the new server. Having my email server (zimbra) installed in a virtual machine I figured it should be piece of cake, just move the .vdi, configure the new VM and enjoy the improved performance. Unfortunately I get a kernel panic on the new box when trying to boot:

Kernel Panic

Any ideas on what could be causing this? Could it be related to new host being 64-bit?

Some info on server1 (working):

Virtualbox version: 3.2.12r68302

uname -a: Linux server1 2.6.32-34-generic-pae #77-Ubuntu SMP Tue Sep 13 21:16:18 UTC 2011 i686 GNU/Linux

Some info on server2 (Not working):

Virtualbox version: 4.1.6r74727

uname -a: Linux server2 2.6.32-33-server #72-Ubuntu SMP Fri Jul 29 21:21:55 UTC 2011 x86_64 GNU/Linux

share|improve this question
up vote 1 down vote accepted

The answer ended up being really simple. I had to activate ioapic in the settings on the new host.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.