On Thu, Dec 05, 2013 at 03:28:29PM -0800, John R Pierce 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.
Not arguing with you, but... I recall hearing probably only a couple years ago that not all the contemporary Intel processors exposed that option, so you couldn't use it on some processors. The writer of that blurb reported no obvious rhyme or reason why one would have it but another wouldn't.
And on the topic of VirtualBox, I can't get 4.3 to work right on my system (AMD Phenom II X2) which DOES have the virtual extensions enabled in the BIOS. It kept complaining that it wasn't enabled (or maybe did not exist, I can't recall exactly). Apparently some motherboards and/or chipsets work differently in re how they expose the feature, and the newest VB couldn't see it. So I stayed with the 4.2 series which more or less does work. (tho it still refuses to let me run a 64-bit Linux on VB even though I'm running Centos 64-bit and a 64-bit VB.) Go figure.