Replication via cn=config

[Marcio Merlone <marcio.merlone@a1.ind.br>]

Hi all,

I am setting a pair of multi-master replicated servers (venus and 
haumea) using Ubuntu 10.04 and OpenLDAP 2.4.21-0ubuntu5. I am following 
the docs at http://www.openldap.org/doc/admin24/replication.html and 
when I get to the part for this ldif:

dn: olcDatabase={1}frontend,cn=config
objectClass: olcDatabaseConfig
objectClass: olcFrontendConfig
olcDatabase: {1}frontend
olcSuffix: dc=tld
olcDbDirectory: ./db
olcRootDN: cn=admin,dc=tld
olcRootPW: secret
olcLimits: dn.exact="cn=admin,dc=tld" time.soft=unlimited 
time.hard=unlimited size.soft=unlimited size.hard=unlimited
olcSyncRepl: rid=003 provider=ldap://haumea.tld binddn="cn=admin,dc=tld" 
bindmethod=simple
  credentials=secret searchbase="dc=tld" type=refreshOnly
  interval=00:00:00:10 retry="5 5 300 5" timeout=1
olcSyncRepl: rid=004 provider=ldap://venus.tld binddn="cn=admin,dc=tld" 
bindmethod=simple
  credentials=secret searchbase="dc=tld" type=refreshOnly
  interval=00:00:00:10 retry="5 5 300 5" timeout=1
olcMirrorMode: TRUE

dn: olcOverlay=syncprov,olcDatabase={1}frontend,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov

I get htis error:

root@haumea:/etc/ldap# ldapadd -x -H ldap://localhost/ -D 
"cn=admin,cn=config" -W -f replica.ldif
Enter LDAP Password:
adding new entry "olcDatabase={1}frontend,cn=config"
ldap_add: Object class violation (65)
        additional info: attribute 'olcDbDirectory' not allowed

root@haumea:/etc/ldap#

I googled for this but got very few useless results. Can someone point 
me the right direction?

Thanks and best regards.

--
Marcio Merlone