KVM vs XEN vs VMware

Luis Mondesi lemsx1 at gmail.com
Fri May 4 17:06:47 UTC 2007

On 5/4/07, Magnus Runesson <mr-ubuntu at linuxalert.org> wrote:
> On Fri, 2007-05-04 at 04:32 +0900, Tomoki Taniguchi wrote:
> > OK I started to follow the instructions on
> > https://help.ubuntu.com/community/KVM
> >
> > I ran
> > "sudo modprobe kvm-intel"
> > and I got the following response
> >
> > FATAL: Error inserting kvm_intel
> > (/lib/modules/2.6.20-15-generic/kernel/drivers/kvm/kvm-intel.ko):
> > Operation not supported
> >
> As Henning pointed out, not all mainboard suport the virtualization.
> (Which I also should have pointed out, but I always forget that there
> are such stupid companies on the market). Check your BIOS if there are
> any configurations that disables VT. It may also help to upgrade the
> I think it was Lenovo, that from the beginning did not have support in
> BIOs for VT. This was solved with a BIOS upgrade.

Also, keep in mind that even after you enable VT on your BIOS, you will need
to shutdown (not just reboot) your computer, before the setting is actually
applied. And since this is a laptop that you are talking about, you might
have to remove the battery from it (after shutting it down).

I learned this the hard way a few days ago...


Luis Mondesi
*NIX Guru

"Feliz el hombre que ha hallado sabiduria y el hombre que consigue
discernimiento, porque el tenerla como ganancia es mejor que tener la plata
como ganancia; y el tenerla como producto, [mejor] que el oro mismo" (Prov
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