[Samba] Problems Transferring FSMO Roles

[miguel medalha]

> I'm having trouble transferring FSMO roles "DOMAINDNS" and FORESTDNS with
> below showing:
>
> samba-tool fsmo transfer --role=domaindns
> ERROR: Failed to delete role 'domaindns': LDAP error 50
> LDAP_INSUFFICIENT_ACCESS_RIGHTS -  <00002098: SecErr: DSID-031523E0,
> problem 4003 (INSUFF_ACCESS_RIGHTS), data 0

To do that with samba-tool, I suppose that you need to use the switch 
--U Administrator and enter Administrator's password.