title: Postgres No such interface 'org.freedesktop.DBus.Properties'
body: <p>Postgres database crashed after restart, tried just about everything including reinstalling postgres. It will not start on ubuntu 14.04, </p>
  
  <blockquote>
    <p>$ systemctl status postgresql@9.6-main.service</p>
  </blockquote>
  
  <pre><code>Failed to issue method call: No such interface 'org.freedesktop.DBus.Properties' on object at path /org/freedesktop/systemd1/unit/postgresql_409_2e6_2dmain_2eservice
  </code></pre>
  
  <blockquote>
    <p>$ pg_lsclusters</p>
  </blockquote>
  
  <pre><code>Ver Cluster Port Status Owner    Data directory               Log file
  9.6 main    5432 down   postgres /var/lib/postgresql/9.6/main /var/log/postgresql/postgresql-9.6-main.log
  </code></pre>
  
  <blockquote>
    <p>$ sudo service postgresql start</p>
  </blockquote>
  
  <pre><code>* Starting PostgreSQL 9.6 database server                                                                                                                                  
  * Failed to issue method call: Unit postgresql@9.6-main.service failed to 
  load: No such file or directory. See system logs and 'systemctl status 
  postgresql@9.6-main.service' for details.
  </code></pre>
  
  <blockquote>
    <p>$ ps uxa|grep dbus-daemon</p>
  </blockquote>
  
  <pre><code>message+   751  0.0  0.0  40812  4064 ?        Ss   18:39   0:03 dbus-daemon --system --fork
  dominic   3058  0.0  0.0  40840  4252 ?        Ss   18:40   0:02 dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-S1LhlCDwl2
  dominic   3145  0.0  0.0  39400  3536 ?        S    18:40   0:00 /bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
  dominic  17462  0.0  0.0  15956  2244 pts/4    S+   21:45   0:00 grep --color=auto dbus-daemon
  </code></pre>
  
  <p>Postgres log file is empty.</p>