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

["Fajar A. Nugraha" <fajar@xxxxxxxxxxxxx>]

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.

>
> 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

> Also - is there a way to run RHEL 4 i386 under Xen on an x86_64 host
> (and be presented as a i386 machine to its processes)? One of the
> things I tried was to start an HVM install but I just couldn't make it
> go. The only way i could make it run was using Qemu.
>
That's odd. It should work. I'll try it out later.
On another note, if you use Xen 3.1, you should be able to use dom0
x86_64 and domU i386 kernel, PV guest. I believe this is a better
approach since PV guests gives better performance compared to HVM.

> Attempting to run a jailtime i386 image on an x86_64 machine created a
> weird "Chimera" where the packages that came from jailtime's image ran
> fine but any execution of "yum" insisted on bringing in i686 packages

Why would i686 be a problem?

Regards,

Fajar

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