Comment 13 for bug 2071734

Still looking for detailed confirmation of the new patch, but I've now tested the latest version locally in devstack. I also am collecting a list of images, which hopefully are self-explanatory from the names:

bad-qcow-with-backing.qcow2
bad-qcow-with-datafile.qcow2
bad-vmdk-flat-expose.qcow2
bad-vmdk-flat-expose.vmdk
bad-vmdk-sparse-nbdurl.vmdk
good-qcow.qcow2
good-raw.raw
good-sparse-vmdk.vmdk
good-stream-vmdk.vmdk

All of the bad ones fail to boot, the good ones succeed, and all the non-raw ones are also uploaded as raw and fail to boot, even if they're otherwise harmless because we reject the disk_format mismatch. I've got that in a bash script locally, which we clearly need to get into automation (in python of course) somewhere at some point.

*tested with use_cow_images=True and False