grub / grub2 conflicts

Richard W.M. Jones rjones at
Thu Sep 22 18:41:29 UTC 2011

On Thu, Sep 22, 2011 at 02:18:48PM -0400, Peter Jones wrote:
> On 09/22/2011 02:02 PM, David Airlie wrote:
> >
> >> On Thu, Sep 22, 2011 at 05:18:09PM +0100, Mark McLoughlin wrote:
> >>> On Thu, 2011-09-22 at 17:00 +0100, Matthew Garrett wrote:
> >>>> grub provides no mechanism for you to know that, which means you
> >>>> can't
> >>>> reliably know that. Which means relying on them being compatible
> >>>> is
> >>>> incorrect.
> >>>
> >>> You described yourself how libguestfs could check it. And failing
> >>> libguestfs doing it, the user could be warned to check it.
> >>
> >> I described something that is, practically speaking, impossible.
> >
> > you run rpm -q grub in the guest and on the host, if they are the same nvr,
> > then they are the same package, where's the rocket science here.
> The whole point of libguestfs's usage was that the package isn't actually
> installed in the guest.  So that won't work.

This is not correct, grub is installed in the guest, but we don't want
to run it from the guest because of security problems.  I outlined it
in an earlier email in this thread.


Richard Jones, Virtualization Group, Red Hat
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