[Libguestfs] Xen drivers for virt-builder images

Richard W.M. Jones rjones at redhat.com
Thu Jun 12 07:20:31 UTC 2014


On Wed, Jun 11, 2014 at 10:02:22PM +0100, George Dunlap wrote:
> On Wed, Jun 11, 2014 at 8:34 PM, Richard W.M. Jones <rjones at redhat.com> wrote:
> > Do you know what extra packages have to be installed or commands need
> > to be run to enable Xen drivers in Fedora?
> 
> The kernel already has a lot of the Xen stuff enabled.  AFAICT from
> looking at the boot output it's just missing those two modules in the
> initrd.  (Although it's possible you'll need more.)  I'm pretty sure
> they should just come in the normal kernel rpm; there aren't really
> any user-space components necessary for basic functionality of a Xen
> guest.  (There are a few tools which someone might want to install for
> one purpose or another -- tools for querying Xen state or acting as a
> "driver domain" -- but they're something that should be added as
> needed, not in the core.)

I suspect we may need to run a dracut command in %post.  Something
like:

dracut --add-drivers "some list of xen kmods ..."

I'm not sure which Xen drivers are required.  The Fedora 21 kernel has
13 files named 'xen*.ko.xz'.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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