[Samba] Samba 3.0b3: Cannot add machine to LDAP database

[Gonçal Badenes]

I am unable to add a machine to samba-3.0.beta3 running as a PDC. If I try
to add the account manually I get the following errors:

[root at ICFO-pc038 root]# pdbedit -a -m icfo-pc018
failed to add user dn= uid=icfo-pc018$,ou=Systems,dc=icfo,dc=es with: Object
class violation
object class 'sambaSamAccount' requires attribute 'sambaSID' failed to
modify/add user with uid = icfo-pc018$ (dn =
uid=icfo-pc018$,ou=Systems,dc=icfo,dc=es)
Unable to add machine! (does it already exist?)

[root at ICFO-pc038 root]# smbpasswd -a -m icfo-pc018
Failed initialise SAM_ACCOUNT for user icfo-pc018$.
Failed to modify password entry for user icfo-pc018$

And if I try to add the account automatically from the windows box, I get a
"The user name could not be found" error.

Here is an excerpt from the samba.cnf configuration file:

[global]
security = user
passdb backend = ldapsam:ldap://localhost,guest
ldap admin dn = "cn=Admin,dc=icfo,dc=es"
ldap ssl = start tls
ldap delete dn = no
ldap user suffix = "ou=People"
ldap machine suffix = "ou=Systems,dc=icfo,dc=es"
ldap trust ids = yes
ldap suffix = "dc=icfo,dc=es"
ldap passwd sync = yes
local master = yes
os level = 65
domain master = yes
preferred master = yes
domain logons = yes
wins support = yes

I have not put an "add machine script" in the configuration file because,
according to the smb.conf man file " This option is only required when using
sam back-ends tied to the Unix uid method of RID calculation such as
smbpasswd."

Unfortunately, I have been reading the HOWTO-collection, the man pages and
searching with Google, but I don't know how to proceed from here :-(

What am I doing wrong? Can anyone help?

Thanks in advance!

    Goncal
    goncal (dot) badenes (at) upc.es