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I'm running on an Intel i7 930. I'm new to virtual machines and linux. I'm trying to learn how to use and install KVM. So I used VirtualBox to install Debian 6 64-bit. So I got the VirtualBox up. I typed in

grep "vmx" /proc/cpuinfo

But nothing return, and I read somewhere that if it don't return anything then I wont be able to install KVM, or run hardware virtualization.

My question, if I'm able to run VirtualBox and VMware shouldn't I be able to install kvm too?

share|improve this question
Have you enabled Intel VT support in your system's BIOS? – jscott Nov 21 '11 at 20:55
Yes it is. I'm trying to run nested virtualization. – user101699 Nov 22 '11 at 0:43
up vote 2 down vote accepted

If I'm reading your question properly you are trying to run KVM on a Virtual Linux Machine from within VirtualBox. Which no one has seem to address in your previous answer/comments.

VirtualBox does not currently support nested virtualization so the virtual cpu that's being exposed to your virtual Linux machine doesn't support VT. There are hypervisors that do support nested virtualization but it's not really something that's advised.

share|improve this answer
Yes that what I was trying to say. Didn't know it was called "nested virtualization". Since you don't recommend hypervisors, which do you recommend that support nested virtualization? – user101699 Nov 21 '11 at 23:15
@user101699 If you remove the "accepted" on my answer, I will delete my incorrect answer. +1 to this answer -- I have misread the question multiple times. – jscott Nov 22 '11 at 1:06
Right now I think the only ones that support this are Xen and newer versions of VMWare Fusion and Workstation. and – 3dinfluence Nov 22 '11 at 2:45

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