hi all: I start slapd by -d -1 command,'slapd -d -1',but print this: @(#) $OpenLDAP: slapd 2.2.13 (Aug 19 2004 21:22:15) $

root@porky.build.redhat.com:/usr/src/build/440386-i386/BUILD/openldap-2.2.13/openldap-2.2.13/build-servers/servers/slapd daemon_init: <null> daemon_init: listen on ldap:/// daemon_init: 1 listeners to open... ldap_url_parse_ext(ldap:///) daemon: initialized ldap:/// daemon_init: 2 listeners opened slapd init: initiated server. slap_sasl_init: initialized! bdb_initialize: initialize BDB backend bdb_initialize: Sleepycat Software: Berkeley DB 4.2.52: (December 3, 2003) bdb_initialize: initialize BDB backend bdb_initialize: Sleepycat Software: Berkeley DB 4.2.52: (December 3, 2003) reading config file /etc/openldap/slapd.conf line 5 (include /etc/openldap/schema/core.schema) reading config file /etc/openldap/schema/core.schema line 78 (attributetype ( 2.5.4.2 NAME 'knowledgeInformation' DESC 'RFC2256: knowledge information' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} )) line 87 (attributetype ( 2.5.4.4 NAME ( 'sn' 'surname' ) DESC 'RFC2256: last (family) name(s) for which the entity is known by' SUP name )) line 93 (attributetype ( 2.5.4.5 NAME 'serialNumber' DESC 'RFC2256: serial number of the entity' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.44{64} )) line 100 (attributetype ( 2.5.4.6 NAME ( 'c' 'countryName' ) DESC 'RFC4519: two-letter ISO-3166 country code' SUP name SYNTAX 1.3.6.1.4.1.1466.115.121.1.11 SINGLE-VALUE )) /etc/openldap/schema/core.schema: line 100: AttributeType inappropriate SUPerior: "c" slapd shutdown: freeing system resources. slapd stopped. connections_destroy: nothing to destroy. please help me ,thanks.