libvirt (0.8.3-2) unstable; urgency=low Disk format probing is disabled now by default for security reasons (CVE-2010-2237). You need to explicitly add a driver type element to your disk devices in the domain XML: ... Alternatively you can re-enable probing by setting allow_disk_format_probing=1 in /etc/libvirt/qemu.conf but this is insecure. -- Guido Günther Wed, 29 Sep 2010 13:10:02 +0200 libvirt (0.8.1-2) unstable; urgency=low If you're using a script such as /etc/qemu-ifup to set up QEMU network interfaces, have a look at README.Debian about the new config option clear_emulator_capabilities in /etc/libvirt/qemu.conf. When using NAT via libvirt's default network you don't have to change anything. -- Guido Günther Mon, 12 Jul 2010 19:58:35 +0200