Quanah, I am not converting hdb to mdb, i am setting up fresh install with mdb, i have generated cn=config using slapd.conf and i was able to start the slapd, now i am trying to create my org structure. ldapsearch -x -D "cn=manager,dc=example,dc=com" -H ldap://localhost:10389 -LLL -w <> -b "dc=example,dc=com" dn: dc=example,dc=com objectClass: dcObject objectClass: organization dc: example o: Example description: Example dn: ou=global,dc=example,dc=com objectClass: organizationalUnit objectClass: top ou: global dn: ou=users,ou=global,dc=example,dc=com objectClass: organizationalUnit objectClass: top ou: users description: All global users in system and now i am trying to add below and getting index generation failed error, db dir and slapd.d owned by slapd processes user. dn: ou=userroles,ou=global,dc=example,dc=com objectClass: organizationalUnit objectClass: top ou: userroles Thanks, Ram On Tue, Oct 3, 2017 at 2:18 PM, Quanah Gibson-Mount <quanah(a)symas.com&gt; wrote: