[root@julie root]# pdbedit -x -u myuser ldapsam_delete_entry: Could not delete attributes for uid=myuser,ou=web,ou=People,dc=equation,dc=fr, error: Constraint violation (modifyTimestamp: no user modification allowed) Unable to delete user webuser [root@julie root]# rpm -q samba samba-3.0.7-2.FC2 [root@julie root]# It seams that pdbedit tries to remove the modifyTimestamp attribute. This is a constraint violation with current openldap servers (2.1.29). It seams that problem was already corrected in 3.0.3 version but was probably reintroduced after 3.0.5.
This has been fixed recently in Subversion. Could you either give SAMBA_3_0 from subversion a try, or wait for 3.0.8 (out rather soon)? Please reopen if you think the bug is not yet resolved.
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.