Saturday 21 February 2009

Virtualbox and KVM

At the moment I'm using virtualbox on my Ubuntu 8.10 laptop for running windows (very occasionally) and some SLC test machines for work. Oh and a few other Linux Distros too. Anyway, much as I like the point n clickiness of virtualbox I thought I'd see what the 'built in' KVM could do, esp as libvirt looks like a nice abstraction layer.

However on starting virtualbox machines I get the error:

VirtualBox can't operate in VMX root mode. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_VMX_IN_VMX_ROOT_MODE).

well, thats not strictly necessary - a simple sudo rmmod kvm_intel kvm and relaunching the virtualbox guest.

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