I found it myself: * Ekkard Gerlach (me) schrieb: > win-xp won't boot after installation. it's because in xml-file was /dev/sr0 . kvm checked the presence of sr0 If sr0 is not present the boot process makes stop. Solution: change /dev/sr0 to /media/cdrom0 (in debian squeeze always existing) in xml-file or delete the disk section entirely: <disk type='block' device='cdrom'> <driver name='qemu' type='raw'/> <source dev='/media/cdrom0'/> <<<==== changed <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> BTW: unfortunately the cdrom is not passed throught. I'll find it out some day .. > Installation worked, but was extrem slow. Machine: Lenovo B560, core i3, 6 GB RAM. Only WinXP-Prof is very slow. WinXP home is quite fast. I found http://www.linux-kvm.com/content/tip-how-setup-windows-guest-paravirtual-network-drivers to speed up WinXP , Tomorrow I've time to read it ... Ekkard _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users