[libvirt-users] Vista guest doesn't start after libvirt upgrade

Hi, I've updated my Debian lenny to Debian squeeze last week. So I have now: libvirt 0.8.3-5 qemu-kvm 0.12.5+dfsg-3 virt-manager 0.8.4-8 Today I try to start my Vista quest again. I am surprised because it won't starts. In "/var/log/libvirt/qemu/devel-vista.log" stands "Read failed". The Console stays as a black screen after a short SeaBIOS message. I tried system recovery too but Vista system recovery identified the Vista installation without any errors. Nearly the same occurs with my Windows7 guest. The logfile seems fine but the console present me: Starting SeaBIOS (version...) Booting from Hard Disk... Boot failed: not a bootable disk I tried system recovery too and indeed, W7 doesn't found a Windows Installation. linux-dev:~# LANG==C ls -lh --block-size=1M /var/lib/libvirt/images/ total 90399 -rwxr-xr-x 1 root root 10000 Feb 12 19:20 devel-CentOS.img -rwxr-xr-x 1 root root 10000 Feb 15 20:17 devel-SUSE.img -rwxr-xr-x 1 root root 10001 Feb 16 22:55 devel-fedora.img -rwxr-xr-x 1 root root 10000 Feb 16 19:23 devel-ubuntu.img -rwxr-xr-x 1 root root 12575 Feb 1 07:56 devel-vista.qcow2 -rwxr-xr-x 1 libvirt-qemu kvm 40961 Feb 21 23:50 devel-vista.qcow2.2del -rwxr-xr-x 1 root root 9330 Jan 23 18:03 devel-w7.qcow2 -rwxr-xr-x 1 root root 10136 Feb 13 20:58 devel-w7.qcow2.2del -rwxr-xr-x 1 root root 10241 Feb 22 00:34 devel-xp.qcow2 the *.2del files are the original images which doesn't start. The responding files without .2del are restored from a backup. WindowsXP as well as different Linux guests does start and run fine. There are any experience with this obscurse behavior? Thanks in advance Matthias -- Don't Panic