Thanks: Laine Stump. See also: https://www.redhat.com/archives/libvir-list/2016-October/msg00246.html --- src/launch-libvirt.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/launch-libvirt.c b/src/launch-libvirt.c index d8479dc..8779dcb 100644 --- a/src/launch-libvirt.c +++ b/src/launch-libvirt.c @@ -1397,6 +1397,18 @@ construct_libvirt_xml_devices (guestfs_h *g, } end_element (); } + /* Libvirt adds some devices by default. Indicate to libvirt + * that we don't want them. + */ + start_element ("controller") { + attribute ("type", "usb"); + attribute ("model", "none"); + } end_element (); + + start_element ("memballoon") { + attribute ("model", "none"); + } end_element (); + } end_element (); /* </devices> */ return 0; -- 2.7.4