We are in the process of testing an upgrade of our NT-style domain on samba 3.6 and ldap backend to an AD on samba 4.4. The classic upgrade works fine so far the only problem we have is that all our groups are migrated without members. I think this is because we use rfc2307bis in our schema which uses "uniqueMember" instead of "memberUid" to link groups to users. Is there an option to the classic upgrade script to tell it to use uniqueMember ? Regards Christian