Re: [Xen-API] [Xen-users] Choosing Debian or Ubuntu as dom0

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2012-12-04 at 15:49 +0000, Lukas Laukamp wrote:
> Am 04.12.2012 16:17, schrieb Andreas Hilboll:
> > Hi all,
> >
> > I need to set up three hosts as Xen dom0. I'm quite familiar with
> > Debian-type distributions, i.e. Debian and Ubuntu. I'm wondering which
> > distro is better suited for a dom0 system. In particular, I haven't been
> > able to find Xen 4.2 packages for neither Ubuntu Precise nor Debian.
> > It would be nice to have XCP working, but I noticed that the Xen wiki
> > recommends switching to Debian SID. However, I'm quite reluctant to run
> > an unstable distro on a production machine.

This info might be out of date -- AIUI Wheezy (aka testing) now has
everything needed for XCP.

Are you interested only in XCP or are you more interested in regular
Xen? The answer will make a big difference to the advice you receive.

> > Summary of my questions:
> >
> > * Is there a way to get Xen 4.2 in either Ubuntu or Debian
> > (not-unstable) without compiling from source?
> > * Which distro has better Xen support *in the repository*?

Ubuntu mostly just consumes Xen from Debian, so I think they are much
the same.

> > * Is there a way to get XCP working in either Ubuntu or Debian
> > (not-unstable)?
> > * Are the improvements from 4.1 to 4.2 good enough to make the trouble
> > of self-compiling (in case there are no packages) worthwhile?

Installing yourself from source isn't hard (if you just want Xen, see
below re XCP) but in general if you don't have any specific reason to do
otherwise I would recommend sticking with your distro packages. Doing
this will naturally avoid all the pit falls which newcomers trip over.

Even if you eventually want to build from source it is easier to use the
packages to familiarise yourself first and then come back to building
stuff yourself if and when you find you need to.

If you are using XCP then I would strongly recommend to use the packaged
stuff, rebuilding the whole stack from the ground up is likely to take
you a while.

> 
> For nativ Dom0 support in the kernel which is not given in the normal 
> squeeze Repos (2.6.32 kernel) 

Squeeze has a kernel flavour with Xen support, it is the one with -xen
in the name.



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