[vbox-users] VirtualBox can't operate in VMX root mode.

[Neal Becker]

Neal Becker wrote:

> VirtualBox can't operate in VMX root mode.  Please disable the KVM kernel
> extension, recompile your kernel and reboot.
> 
> What should I do?  Not sure why I got this.  Probably when I switched
> between linux kernels.  It worked when I tried before (probably that was
> kernel #2 below)
> 
> rpm -q kernel
> kernel-2.6.23-0.214.rc8.git2.fc8.x86_64
> kernel-2.6.23.1-26.fc8.x86_64
> kernel-2.6.23.1-16.ALSA_NV.x86_64 << This is the current running kernel

Oh, I see.  I installed kvm (for no good reason).  Removed the kvm kmod, now OK.