Re: [Xen-users] RHEL3 domU

[Ivan Porro <pivan@xxxxxxxxxxxxx>]

Fajar A. Nugraha wrote:
> harishs@xxxxxxxxxxxxxxx wrote:
> > Hi,
> >
> > I am a newbie to xen and I have a very basic understanding of xen and its
> > architecture.
> > This is my requirement:
> > My Dom 0: Ubuntu Feisty
> > Dom U: RHEL3
> >
> > Now I have got my Dom 0 running. The problem is with Dom U. I'm just not
> > sure how I
> > should create a xen enabled RHEL3 image.
> >   
> Short answer : you can't. Not if you want PV DomU.
> Xen 3.x doesn't support PV linux 2.4 kernel which RHEL3 uses.
> You might be able to create HVM DomU though.
In fact, it is only matter of having a RHEL with a 2.6 kernel. You have 
to do a bit of upgrade (i.e. to avoid QM_MODULES errors) and then it 
will work. Not fine, not production stable (IMHO) but it will work, and 
if it is a strict requirement as in my case you don't have much more 
options. I'm running a SKC4 dom0 with 2cpu/2gig ram old xeon processor, 
non VT, supporting 4 domU whic are 3 SLC3 and 1 SLC4.
I've done this with Scientific Linux CERN 3 domU over a SLC 4 dom0. SLC 
is basically RHEL so these info may apply also to your case.
important: have a look at /dev/* permissions before saying it works :)

howto:
http://project-xen.web.cern.ch/project-xen/xen/howto_slcXen.html

xen domU images:
http://project-xen.web.cern.ch/project-xen/xen/img/img.xml

installing kernel 2.6 on SLC3:
http://linux.web.cern.ch/linux/scientific3/docs/kernel26.shtml

ivan




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