Unable to boot using VirtualBox on amd64

I can't boot any TurnKey appliances on my amd64 notebook, I get a kernel panic. Both Ubuntu Server 32-bit and 64-bit work fine on the same VitualBox VM.

Any ideas to what may the problema may be?

TIA,

Daniel Serodio

Replies (2)

Known Linux kernel bug

Reply 1 2009-09-21

This is discussed in the Appliance installation tutorial with VirtualBox:

Note for users with AMD CPUs: if you have an AMD Phenom or Barcelona-level
Opteron CPU enable IO APIC here to work around a Linux kernel bug.

Hope this helps.

Solved

Reply 2 2009-09-22

Thank you, that did the trick. The network doesn't work, but that's another problem.