[fedora-virt] how to active XEN on Fedora 12
Pasi Kärkkäinen
pasik at iki.fi
Wed Dec 30 17:27:57 UTC 2009
On Wed, Dec 30, 2009 at 12:21:56PM +0000, Richard W.M. Jones wrote:
> On Wed, Dec 23, 2009 at 02:23:37PM +0100, Dario Lesca wrote:
> > Thanks Boris, I use F12 on my Laptop and I want run some VM for test new
> > version of distro.
>
> KVM is generally better for laptops because of better power
> management. However ...
>
> > Now I use qemu-kvm but each machine use 30/40% of CPU of host system.
>
> Is KVM enabled?
>
> $ /sbin/lsmod | grep kvm
> kvm_intel 48184 6
> kvm 163952 1 kvm_intel
>
> You should see a kvm_* module. Does your laptop support hardware
> virtualization? Recent hardware has much better support than the
> first generation of hardware. Is it enabled in the laptop BIOS?
>
> > I want use XEN to see if it works better...
> [...]
> > then I'm looking for some thing to do after this....
>
> Basically Fedora 12 doesn't support Xen as a host. Too bad, but this
> is because upstream Xen people didn't get their changes into the Linux
> kernel yet.
>
> Your options are to go back to something out of date and unsupported
> (Fedora 8 IIRC was the last version of Fedora that could be used as a
> Xen host). Or use KVM -- see above. Or use RHEL 5 or a derivative
> where an older version of Xen is fully supported.
>
Fedora 12 contains Xen hypervisor and tools, only dom0 kernel is
missing.
There's a repository of xendom0 kernels as rpms, if you're willing to
install 3rdparty/testing rpms, see:
http://fedoraproject.org/wiki/Features/XenPvopsDom0
-- Pasi
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