Hi, openstack-virtual baremetal carried patches[1] to enable PXE booting instances, I think the nova project declined including them back when, I do not know why ... Another potential solution is to use block_device_mappings and attach an iPXE image as a secondary disk and set that as boot_index: 0. I use the following when creating an instance, the "server_img.id" can be a "blank" image initially. Then the second image is an iPXE image. The result is that the instance boots into iPXE which does network boot ... block_device_mapping = [ {'uuid': server_img.id, 'boot_index': 1, 'source_type': 'image', 'destination_type': 'volume', 'device_type': 'disk', 'volume_size': VOLUME_SIZE, 'delete_on_termination': True, }, {'uuid': ipxe_image.id, 'boot_index': 0, 'source_type': 'image', 'destination_type': 'volume', 'device_type': 'cdrom', 'disk_bus': 'sata', 'volume_size': VOLUME_SIZE, 'delete_on_termination': True, } ] [1] https://opendev.org/openstack/openstack-virtual-baremetal/src/branch/stable/... // Harald