Debian GNU/Linux 8 (jessie)
Linux <servername> 3.16.0-6-amd64 #1 SMP Debian 3.16.57-2 (2018-07-14) x86_64 GNU/Linux

# ./bareos-ctl-dir start
Starting the Bareos Director daemon
Checking Configuration and Database connection ...
bareos-dir: dird.c:1161-0 Could not open Catalog "MyCatalog", database "bareos".
bareos-dir: dird.c:1166-0 postgresql.c:253 Unable to connect to PostgreSQL server. Database=bareos User=bareos
Possible causes: SQL server not running; password incorrect; max_connections exceeded.
bareos-dir ERROR TERMINATION
Please correct the configuration in /etc/bareos/bareos-dir.d/*/*.conf

Catalog {
  Name = MyCatalog
  #dbdriver = "postgresql"
  dbdriver = postgresql
  dbname = bareos
  dbuser = bareos
  dbpassword = "<correctpassword>"
}

# psql -h localhost -d bareos -U bareos
Password for user bareos: <correctpassword>
psql (9.4.19)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.

bareos=>

# sudo -u postgres /etc/bareos/update_bareos_tables
/etc/bareos/update_bareos_tables: 29: .: Can't open /etc/bareos/bareos-config-lib.sh