Re: [Xen-users] Re: export single partitions to xen 3.1.2 domU

[Steven Timm <timm@xxxxxxxx>]

On Wed, 22 Apr 2009, Fajar A. Nugraha wrote:

> On Wed, Apr 22, 2009 at 3:39 PM, Steven Timm <timm@xxxxxxxx> wrote:
> > Just as a clarification, as I read the various manuals,
> > it seems that the key difference is that
> > the enterprise linux 5.2/xen 3.1.2 (labeled 3.0.3 as it comes from Redhat)
> > is running libvirt, and my previous setup that I'm trying to
> > upgrade to that was not.
> Libvirt (for most purposes) is just a frontend. You can dump libvirt
> altogether if you like (which is what I did) and manage domUs using xm
> commands. That way (if you want to) it can be just like your previous
> setup.
Are you suggesting that
xm create, which I always use to launch the domain,
behaves differently depending on whether libvirt is running or not?


> Which is why I told you earlier
>
> "If by "convert" you mean "run these old dom0 on new version of dom0",
> then you don't have to do anything. Old domU config should run just
> fine."
Except that I want to move the kernel inside the domU and boot
using pygrub, which I wasn't doing on this system before.

You are right that if I try to start
the unmodified xen domU config on the new dom0  (with
disabled libvirtd) I can do it.
but if I try to change anything--
even shift to pygrub with same disk configuration, things don't work.

Ideas?


> > So does anyone know how to export a single partition to a
> > libvirt-enabled xen domU that's otherwise installed already, or
> First method is to shutdown domU and edit its config file. They're
> still located under /etc/xen.
That's what I'm trying.. there is no way to get any sda device
to show up at all.  Would it be different if I stopped libvirt?

> Second method is to use "xm block-attach" (or virsh attach-disk). You
> may still have to edit the config file afterwards.
virsh attach-disk according to its man page says that
this will make a full disk which still has to be formatted
and partitioned.  Is this not the case?

> > how to take a non-libvirt domU with 3 such partitions and turn it
> > into one that is\
> Put the config file on /etc/xen, run "xm create" or "xm new"
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
--
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm@xxxxxxxx  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users