Trying to auto start Postgres when server boots up

Hi,
 
I am using PostgreSQL 7.4.7 and Red Hat Enterprise Linux 4.
 
I want to start the Postgres Postmaster automatically when the server
boots up.
I have tried putting the command 
"/usr/local/pgsql/bin/pg_ctl -D /usr/local/pgsql/data -l
/usr/local/pgsql/data/server.log start"
In the /etc/rc.d/rc.local file but when the server boots up it gets
stuck at the point "Enabling swap space   [OK]".
Usually the Red Hat desktop would come up but it doesn't.

Any ideas?
 

Regards,

Shahid Butt
IT Systems Developer 

shahid.butt@nccedu.com