After updating to 5.6 on a server this morning, I can no longer boot two virtual machines. One is trixbox which I believe is a 32bit centos based distro, and the other vm is a 64bit Windows 2008 installation. The error I get in the virt-manager console is FATAL: No bootable device. Both VMs are qcow2 format, and I've checked file permissions. I'm going to boot a live cd in the trixbox vm to see if I can access anything on it's qcow2 disk. Any hints appreciated...