On Fri, 2017-05-05 at 23:18 +0100, Alasdair G Kergon wrote: > On Sat, May 06, 2017 at 12:05:49AM +0200, Martin Wilck wrote: > > 3) kpartx should only delete "partitions", which are single- > > target > > linear mappings into a block device. Other maps should not be > > touched. > > The prefix on the dm device's uuid should guarantee this: all devices > kpartx creates should have the same initial characters (a > not-quite-standard form "part" IIRC instead of "KPARTX-") and any > devices without those initial characters must be ignored. This works only for partitions on DM devices, not e.g. for loop devices. These devices obviously have no DM UUID; and thus kpartx also doesn't set an UUID for the partition devices it creates. That's the main point of this series. Martin -- Dr. Martin Wilck <mwilck@xxxxxxxx>, Tel. +49 (0)911 74053 2107 SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
