Hi. When i try to launch VM with command virsh start vm1.It gives following error -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1: Bus 'ide.0' not found When I create the same qemu command from xml again. It show following addition parameter added by virsh in output qemu command 1) -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 2) -device virtio-balloon-device,id=balloon0 I seems parameter 1 added by virsh domxml-from-native qemu-argv demo.args causing the problem. How to correct this. Regards Harsh Jain '