[CentOS] CentOS 6.5 VirtualBox

Marko Vojinovic vvmarko at gmail.com
Fri Dec 6 02:52:52 UTC 2013


On Thu, 05 Dec 2013 15:28:29 -0800
John R Pierce <pierce at hogranch.com> wrote:

> On 12/5/2013 12:30 PM, Marko Vojinovic wrote:
> > AFAIK, KVM does not support host CPU's which don't have
> > virtualization support. If OP has somewhat aged hardware, he may
> > have no option but to use VirtualBox.
> 
> that would be some old crufty hardware, like pentium-4 (or the 
> equivalent single core xeon stuff), hardly worth TRYING to virtualize 
> on, except for very low performance 32-bit-only VM's, for test/dev
> kind of applications.

Well, I have a 64-bit

   Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz

and it does not have hardware virtualization support. This processor is
not *that* old. According to Wikipedia
(http://en.wikipedia.org/wiki/Intel_VT-x#Intel_virtualization_.28VT-x.29),
even some 2011 processors (namely P6100 series) do not have
virtualization support. For the full list of which cpu's have/don't
have vmx flag see for example

  http://ark.intel.com/Products/VirtualizationTechnology

So cpu's without vmx are not as ancient as they might appear.

HTH, :-)
Marko





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