I've installed PostgreSQL 9.0 on Ubuntu 10.04 using this guide.
However, when I try to start the service, I get this back, with no error or message shown.
root@srv1:/etc/init.d# ./postgresql start
* Starting PostgreSQL 9.0 database server
* The PostgreSQL server failed to start. Please check the log output.
[fail]
I don't know where the log file is to see this error. It's definitely not in /var/log/* or /var/log/postgresql