Re: [Xen-users] HVM install keeps crashing with Centos 5 virt-install

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Fajar A. Nugraha wrote:
> Amos Shapira wrote:
>   
> > On 06/11/2007, *Fajar A. Nugraha* <fajar@xxxxxxxxxxxxx
> > <mailto:fajar@xxxxxxxxxxxxx>> wrote:
> >
> >     Brian Lavender wrote:
> >     >
> >     > I am trying to install Redhat 6.2 as an HVM guest. Will this work?
> >     >
> >     >
> >     First, a question. Have you ever tried to install RH 6.2 on a modern
> >     Intel CPU?
> >     My guess is it wouldn't work. CPU-wise, Xen will pretty much present
> >     whatever CPU present at dom0 to domU. Meaning if it crashed on a real
> >     machine, it would also crash on a HVM guest.
> >
> >     That being said, I believe the earliest RHEL version certified to
> >     run as
> >     HVM guest is RHEL3, and the earliest RHEL version certified to run
> >     as PV
> >     guest is 4.5.
> >
> >
> > Really?
> >
> > Good to know - i've just spend a few days trying (and eventually
> > succeeding) to install RHEL 4.4 x64 as a PV guest on an Intel Xeon 3050.
> >     
> Just curious. You DO use RHEL4's kernel-xenU package, and not
> CentOS/RHEL 5's kernel-xen for your domU, right? I believe kernel-xen
> for RHEL4 is available starting from RHEL 4.5.
>   
Xensource publishes considerably more recent kernel-xen packages than 
does RedHat, including ones for RHEL 3 and RHEL 4. RedHat doesn't 
publish a Xen package for RHEL 4, only for RHEL 5, with kernel-xenU 
packages for RHEL 4. (I didn't look for RHEL 3).

> > Do you have a sample .cfg file to run an HVM RHEL 4 (on Debian Etch,
> > Xen 3.0.3)?
> >
> >     
> No, sorry. Havent' had the need to create one.
> http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Virtualization-en-US/task-virt-lab1.html
> says the steps (an therefore config) is the same as installing RHEL5
>   
You wind up with a different kernel, kernel-xenU that is 2.6.9 based, 
and not kernel-xen which is 2.6.18. They've clearly done some oddnesses 
to the Anaconda installation tool suite to accomodate Xen. And thee are 
some fascinating firewall issues with that kernel-xenU in place.

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