OS X Lion Server multiple postgresql installs I am using Homebrew to install PostgreSQL on my Mac mini server (Lion). However, I am unable to run the version I have installed, the only version I see running is the version installed with OS X:

216    83     1   0 12:17PM ??         0:00.47 /usr/bin/postgres -D /var/pgsql -c listen_addresses= -c log_connections=on -c log_directory=/Library/Logs -c log_filename=PostgreSQL.log -c log_lock_waits=on -c log_statement=ddl -c log_line_prefix=%t  -c logging_collector=on -c unix_socket_directory=/var/pgsql_socket -c unix_socket_group=_postgres -c unix_socket_permissions=0770
216   266    83   0 12:17PM ??         0:00.27 postgres: logger process                           
216   300    83   0 12:17PM ??         0:01.01 postgres: writer process                           
216   301    83   0 12:17PM ??         0:00.75 postgres: wal writer process                           
216   302    83   0 12:17PM ??         0:00.51 postgres: autovacuum launcher process                           
216   303    83   0 12:17PM ??         0:00.91 postgres: stats collector process                           
1025  2698   814   0  1:30PM ttys000    0:00.00 grep post


How do I go about starting another postgres instance and having it run on startup?
The Homebrew postgresql formula tells you exactly how to do this when you install it.  Run brew info postgresql to have that information shown again.