On Fri, Jul 24,
2009 at 03:11:36AM +0800, Teo En Ming wrote:
> Hi All,
> I think I may know when my CentOS 4.7 32-bit PV guest can't
start. It's the
> PAE kernel issue again.
Xen 3.x supports only PAE domU kernels..
so you need to have kernel-xenU installed, which _should_ be PAE
> After searching through the internet, I came across Pasi's
> Title:[CentOS-virt] Tips for installing Fedora 10 32bit Xen
PV domU/guest on
> CentOS 5.3 dom0/host
> Apparently, CentOS 4.7 32-bit anaconda installed the xenU
> kernel. Should I un-install the xenU (xen-aware kernel for
> paravirtualization) and install the PAE kernel for my PV
> <QUOTE Pasi Kärkkäinen>
> Xen only supports PAE kernels for 32bit PV guests.
Yep. And those PAE kernels need to be Xen-domU-kernels obviously
> But then PAE kernels are not xen-aware, so that means I
cannot run my CentOS
> 4.7 32-bit as PV guest? Instead I got to run CentOS 4.7
32-bit as HVM guest?
> Fully virtualized guests are slower than paravirtualized
> Please advise. Thank you!
You definitely need kernel-xenU, and that should work just fine!
be PAE automatically.
I'm running CentOS4 guests using kernel-xenU, booted with pygrub.