I just upgraded an NFS client from Ubuntu 10.04 to 12.04. After this, the ownership of mounted files and directories is incorrect: For all of them the group "nogroup" is shown while the user is correct.
$ ls -l foo -rw-r--r-- 1 myuser nogroup 0 Sep 24 13:50 foo
Authentication is done over LDAP, idmapd is running. What seems strange are the log entries of the LDAP server:
SRCH base="dc=ls-5,dc=de" scope=2 deref=0 filter="(&(objectClass=posixGroup) (uniqueMember=cn=users,ou=posix,ou=groups,dc=domain,dc=tld))" SRCH attr=gidNumber <= bdb_equality_candidates: (uniqueMember) not indexed SEARCH RESULT tag=101 err=0 nentries=0 text=
Why does it search for uniqueMember which is not allowed by the schema of posixGroup? Does anyone have a hint how to fix this?