If $PGDATA is really a mountpoint for any filesystem, adjust it to get a Listing from the mounted filesystem. Such as: if a filesystem is mounted to /var/lib/psql/details and $PGDATA is set to /var/lib/pgsql/data, alter $PGDATA to /var/lib/pgsql/details/details.It is very usual which the made use of spare pieces that you buy in a very wrecking yard