slapd/ldap_add error messages
-----------------------------

ldap_add: Invalid syntax (21)
	additional info: objectClass: value #0 invalid per syntax

	The object you are trying to create names an objectClass that
	is not in your configured schemas. There is probably a schema
	file missing from /etc/ldap/slapd.d/cn=config/cn=schema

ldap_add: Object class violation (65)
	additional info: no structural object class provided

	You are trying to define an object whose objectclasses are all
	either AUXILIARY or ABSTRACT. You must include at least one
	STRUCTURAL object class.



Converting old-style schemas to the new style
---------------------------------------------

If /etc/ldap/slapd.d exists on your system, you are using new-style
configuration files. Unfortuantely, most of the schema files you will
see are in an older style and will need converting before they can be
used.

0. Before you start, ensure that the schema file is in a format that
is acceptable to slaptest: its parser is rather flaky.

0.1 Keywords such as attributetype, objectidentifier, objectclass must
begin in column 1.
0.2 The body of each definition must be indented.

1. Create empty work directories e.g.
	mkdir -p /var/tmp/foo/bar

2. cp myOldStyleSchema.schema /var/tmp/foo

3. cd /var/tmp/foo
   cat >> slapd.conf <<%%EOF%%
   include myOldStyleSchema.schema
   %%EOF

4. slaptest -f ./slapd.conf -F ./bar

5. cp './bar/cn=config/cn=schema/{0}myOldStyleSchema.ldif '/etc/ldap/cn=config/cn=schema'

6. cd '/etc/ldap/cn=config/cn=schema'
   Rename the file you have just copied in by changing the {0} to
   something that ensures that it will be loaded after all the core
   schemas.

   Ensure that the file is owned by openldap:openldap.

7. (Re-)start slapd.

Note: it is possible to run slaptest directly on your schema, but then
it will convert it in a way that is Not Quite Right (tm).