postgres@geek42:/etc/init$ cat postgresql.conf
# this is a upstart configure file for my poor vps's postgresql

description "Postgresql Server"
author "jyf<jyf@geek42.info>"

start on runlevel [2345]
stop on runlevel [!2345]

script
    setuid postgres
    setgid postgres
    exec /usr/lib/postgresql/8.4/bin/pg_ctl start -D /data
end script