https://bugzilla.redhat.com/show_bug.cgi?id=1034095
--- Comment #7 from Alexander Larsson alexl@redhat.com --- Created attachment 830274 --> https://bugzilla.redhat.com/attachment.cgi?id=830274&action=edit udev rules to ignore docker devmapper block devices
With this in /etc/udev/rules.d everything works for me.