I figured it out !

[Mark Westcott]

> Hi
> For all you guys who might have had the same issue. I found the answer on
> some site after long searching.
> Just uncomment everything in /etc/samba/smbusers and add a samba user
> called root with smbpasswd -a root, give it a password and then use this
> account to join the domain - works great. But I swear my other account was
> also part of the adm group but it seems to have to be root and nothing else
> in order to join a domain.

Yep, you are right.  The reason for this is that the smbpasswd file needs 
modification when a system is joined to a domain, and therefore root 
permissions are needed.


Mark