[Samba] changing server role = standalone server to 'member server'

[Carl Wilhelm Soderstrom]

I am testing a Samba v4.1.3 instance on Ubuntu 14.04 prerelease.
I set it up as a standalone server on a test network, and it was easy to set
up and worked fine. Now I am trying to migrate it to a different network and
join it to a Windows 2008 AD server.

When I try to join it to the domain, I get this error:

root at samba-4:/etc/samba# net ads join -U administrator 
Host is not configured as a member server.
Invalid configuration.  Exiting....
Failed to join domain: This operation is only allowed for the PDC of the
domain.

I've gotten a Kerberos ticket already with kinit, so I know it can connect
to the AD server.

If I try 'testparm -s' I see that it shows "Server role: ROLE_STANDALONE"
even tho I have "server role = member server" in the config file.

Is there some database I need to clobber when changing the "server role ="
value?

root at samba-4:/etc/samba# testparm -s
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[homes]"
Processing section "[cad-test]"
Loaded services file OK.
Server role: ROLE_STANDALONE
[global]
	workgroup = EXAMPLEAD
	realm = AD.EXAMPLE.COM
	server string = samba-4.example.com
	server role = member server
	obey pam restrictions = Yes
	restrict anonymous = 2
	syslog = 0
	log file = /var/log/samba/%m.log
	load printers = No
	logon script = %U.bat
	logon path = 
	logon home = 
	local master = No
	wins server = 192.XX.XX.XX
	template shell = /bin/bash
	winbind enum groups = Yes
	winbind use default domain = Yes
	winbind refresh tickets = Yes
	winbind offline logon = Yes
	winbind max domain connections = 10
	idmap config * : range = 600-20000
	idmap config * : backend = tdb

[homes]
	comment = Home Directories
	path = /home/%D/%U
	valid users = %S
	read only = No
	create mask = 0700
	directory mask = 0700
	browseable = No

[cad-test]
	comment = CAD DepartShared Space
	path = /var/samba/cadshare
	valid users = rte
	force group = rte
	read only = No
	create mask = 0666
	directory mask = 0777

-- 
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com