Install Calendar Server 6.3.
Stop Calendar Server, if it is running.
Stop Directory Server, if it is running.
where dir-svr-base is the Directory Server installation directory and hostname identifies the machine.
If you want to index attributes, as the configuration program does, do it at this point.
For a list of the attributes the configuration program indexes, see Attribute Indexes Created by the Directory Preparation Tool.
Restart the Directory Server.
If you receive object identifier (OID) errors, see Resolving Conflicting Calendar Server OID's in the LDAP Schema.