[Fedora-xen] Getting Fedora yum-installed domU running on fedora with fedora-xen packages

[Henning Sprang]

Hi

I wrote a very similar question some hours ago for Debian, which maybe
got no replies becuase nobody is interested in running Debian on
fedora.

The sad thing is, with the same problems and effects, I also don't get
a Fedory system running that I instelled with yum.  So, just replace
debian with fedora 6 and debootstrap with yum in the mail below.

Again, This same system runs fine with Xen from xensource, but I'd
like to use the Fedora Xen packages, for the security updates and
stuff.

There must be something special in the Fedory Kernel that does make
systems from "normal" partitions not work somehow, or something like
that.


---------- Forwarded message ----------
From: Henning Sprang <henning_sprang at gmx.de>
Date: Dec 18, 2006 1:27 AM
Subject: Getting Debian domU running on fedora with fedora-native
packages (works with xensource binaries)
To: fedora-xen at redhat.com


Hi,
I built a Debian domU on Fedora using debootstrap (which is really
easy, when using alien to create a debootstrap rpm).

This VM runs very fine on fedora fc 6 with xen and the xen-linux
kernel provides by xensource, and when built from sources.

When trying to use it with the fedora xen packages and kernels, I have
absolutely no luck.

First, I was hanging  on error message like "could not mount root
device on /dev/root" (sorry, I don't have it at hand, becaue I just
removed the fedora packages and used the xensource packages again, to
be sure it really still works there).

I got past that by creating an initrd  with --with=xennet
--preload=xenblk options, and boot the domU with this instead ofthe
initrd that comes with the fedora xen kernel package.

But then, the domU hangs on "starting crond..."  I have no idea what
is missing there, I already installed udev additionally, but that
doesn't help.

As said, this same system runs with no problem on FC6 with the
xensource binaries.

BTW: I run the system without pygrub and not with the kernel from
disk, but with the kernel= options...

Henning