[Vserver] strange error building ubuntu guest

Hello List,

I'm trying to build an ubuntu guest on a debian sarge host, as described
here:
http://linux-vserver.org/some_hints_from_john

When using the command

> vserver vubuntu build -m debootstrap --hostname vubuntu.checon.net
--interface eth0:192.168.42.11/24 --context 42 -- -d breezy -m
http://de.archive.ubuntu.com/ubuntu

I keep getting a strange error after debootstrap is finished:

> (...)
> I: Configuring base-config...
> I: Configuring ubuntu-minimal...
> I: Base system installed successfully.
> /bin/rm: cannot remove directory `/etc/vservers/.defaults/vdirbase/vubuntu/dev/.static/dev': Device or resource busy
> rm: cannot remove directory `/etc/vservers/.defaults/vdirbase/vubuntu/dev/.static/dev': Device or resource busy
> jake:~#

After that there's a rebootmgr task running. And I can't even manually
delete the dir /etc/vservers/.defaults/vdirbase/vubuntu/dev/.static/dev
But lsof doesn't show any task using the dir.

I'm using
vanilla kernel 2.6.15.4 with vserver-patch 2.0.1.3
util-vserver 0.30.209-0bpo1 (from backports.org)
debootstrap 0.3.2bpo1

./testme.sh and ./testfs.sh are working without any problem. Building a
sarge guest using a similar command works like a charm.

Am I missing something? Any hints?

Thanks,
  Claus

-- 
CHECON   EDV-Consulting und Redaktion
         Claus Herwig * Barer Straße 70 * 80799 München
         +49 89 27826981 * Fax 27826982 * c.herwig@checon.de
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