On Wed, 2020-01-08 at 15:49 +0000, Daniel P. Berrangé wrote: > > I wonder if there's any scope for improving qemu-img here so that it > can 'do the right thing', or at least issue a warning if the suer > doesn't set a backing format. Yes, someone should send a patch that would make qemu-img print a big fat warning when a backing file was specified without "-F". Regards, Martin -- Dr. Martin Wilck <mwilck@xxxxxxxx>, Tel. +49 (0)911 74053 2107 SUSE Software Solutions Germany GmbH HRB 36809, AG Nürnberg GF: Felix Imendörffer -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list