Comment 2 for bug 1191069

This issue can be tentatively resolved by setting the image_ref field when booting a VM from a volume. The volume normally references an image, if it is created from an image. However, the potential situation can be after the volume creation, the original image is deleted. If this happens, the image can not be found for sure.

Another approach can be copying the content of the volume, from which the VM boots. Instead of checking the image, we need to check the volume, if the VM has a volume backend.