xen, how to boot a 2.4 kernel distro in FC4

Dan Track dan.track at gmail.com
Fri Jul 1 14:19:39 UTC 2005


On 7/1/05, Daniel Veillard <veillard at redhat.com> wrote:
> On Fri, Jul 01, 2005 at 01:18:21PM +0200, Bob Deblier wrote:
> > On Fri, 2005-07-01 at 11:37 +0100, Dan Track wrote:
> > > Hi
> > >
> > > Can someone please help to find a way, while also getting an
> > > understanding as to how to boot a 2.4 kernel distro, in my case rhel
> > > 3, as domU under the 2.6 kernel dom0 from FC4.
> > >
> > > I'm having problems. Basically I initially though that running a Xen
> > > kernel would allow me to boot any os as a domU no matter what their
> > > kernel was, but I think I have been mistaken with this. I am running
> 
>   No it's not that simple. You would have to compile that 2.4 kernel
> to work with Xen. It's is not a matter of just tweaking a config file !
> 
> > > into problem while booting this.
> > >
> > > I would really appreciate any help provided.
> >
> > As I've mentioned before: the guest OS, i.e. the one running as a domU,
> > also needs a specially compiled kernel. See
> > http://wiki.xensource.com/xenwiki/XenFaq#head-bb579ddda3999d87064a36b7d847fad8e39440ae
> >
> > This is because Xen is a paravirtualizer instead of a full virtualizer,
> > like VMware.
> 
>   Until Xen3 and the new generation of Intel and AMD CPU offering hardware
> support. Check the roadmap for Xen3 at the bottom of
> 
>     http://www.cl.cam.ac.uk/Research/SRG/netos/xen/architecture.html
> 
> > Wouldn't it be better to ask questions like this on the xen-users list?
> > The lack of responses here seems to indicate a general lack of knowledge
> > in this topic...
> 
>   The suggestion is good, but it's not there is lack of knowledge, rather
> that it's 1/ hard 2/ work on old code 3/ would break his RHEL3 support anyway
> and there is just too many thing to do to get Xen working smoothly on
> the current kernel that nobody has time to waste on playing with 2.4
> 
> Daniel
> 
> --
> Daniel Veillard      | Red Hat Desktop team http://redhat.com/
> veillard at redhat.com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
> http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
> 

Hi All,

Many thanks for your replies.

Its a bit upsetting that it can't be done. But hey I'm glad I still
spent the time asking because I realised a lot from it.

Much appreciate your help.

Thanks
Dan




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