Problem with Samba 4 Schema modification

Matthias Dieter Wallnöfer mwallnoefer at
Wed Feb 13 16:44:47 GMT 2008

This problem seems very similar to the one of mine mentioned in bug 
#4911. <> SAMBA 4 doesn't 
seem to support schema modifications via LDAP yet.


Nadezhda Ivanova schrieb:
> Hi list,
> I am experimenting with Samba 4 as a Domain controller, and encountered the
> following problem.
> Using LDAP requests, I add new attributes to the schema. I receive no LDAP
> errors.
> However, if I have added an attribute whose OID is not in the prefixMap,
> after I restart smbd, schema initialisation fails with the following error:
> dsdb/schema/schema_init.c:412: 'msExchComputerLink': unable to map
> attributeID 1.2.840.113556.1.4.7000.102.72: WERR_DS_NO_MSDS_INTID
> ldb: schema_fsmo_init: failed to load attriute definition:
> CN=ms-Exch-Computer-Link,CN=Schema,CN=Configuration,DC=nadya-test,DC=postpath,DC=com:WERR_DS_NO_MSDS_INTID
> I noticed that upon initialisation, each attribute is checked against the
> prefixMap, which is first loaded from an ldif file, and if the prefix does
> not match, initialisation fails.
> In this case 1.2.840.113556.1.4.7000.102 is not there.
> I am using the alpha2 release. Downloaded the v-4-0-test today, but neither
> python provisioning nor the old one worked...
> Has anyone encountered this problem, is there a workaround?
> Regards,
> Nadya

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