On Wed, Jan 08, 2020 at 03:34:02PM +0000, Martin Wilck wrote: > Hi Peter, > > On Wed, 2020-01-08 at 15:46 +0100, Peter Krempa wrote: > > On Wed, Jan 08, 2020 at 13:34:14 +0000, Martin Wilck wrote: > > > The recent change in libvirt to pass storage arguments to qemu via > > > "-blockdev", explicity passing backing file chain information > > > rather > > > than relying on qemu to figure it out, has bitten me quite > > > painfully. snip > > In libvirt we already always record the image format when creating > > the > > overlay for many years now. > > Unfortunately almost all tutorials about backing chains on the web just > teach qemu-img usage. In my case I guess it's just an old habit. 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. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
