[Samba] Migration from Windows to Samba4

[Andrew Bartlett]

On Mon, 2013-10-21 at 20:58 +0200, Rob Janssen wrote:
> I want to replace a Windows 2003R2 DC by a Samba4 install.
> 
> I installed Samba 4.0.10 and successfully joined the Windows domain.
> (after applying a small patch to join.py)

What patch is that?

> The replication works fine, and the new DC now hosts all fileshares and
> successfully authenticates users and computers.
> 
> Transfer of fsmo roles was also successful.  The old Windows DC is still
> active.  I want to decommission it, but when running the Microsoft advised
> procedure there are some minor errors that all refer to RPC.

I will need details before I can comment. 

> When I try dcpromo it tells me that there is no other reachable DC.
> Again complaints about RPC not working.
> 
> Is this normal?  Should it go smoothly like the join or are there still some
> rough edges in this area?

Without knowing exactly what you are seeing, it's hard for any of us to
say.  

> I could go ahead and remove AD from the Windows machine and then
> cleanup manually at the Samba end if required.
> Is there a HOWTO for doing that using Samba tools?
> 
> Rob

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org