[Samba] Need another workaround for FSMO transfer problem

[John Lewis]

https://wiki.samba.org/index.php/Flexible_Single-Master_Operations_%28FSMO%29_roles#Transfering_a_FSMO_role

I ran into that while trying to rebuild my LXC's as Debian 8. The
proposed work arrounds assume you have access to a Windows Domain
controller in your domain, and I don't. Is there anything else I can do
to get all 7 Roles moved to my other domain controller so I can rebuild it?