The following bug has been logged on the website:
Bug reference: 6500
Logged by: Thomas Pasch
Email address: thomas.pasch@nuclos.de
PostgreSQL version: 9.1.3
Operating system: Linux 64 (Ubuntu 11.10/oneiric)
Description:=20=20=20=20=20=20=20=20
When I try to install=20
./postgresql-9.1.3-1-linux-x64.run --mode unattended --serverport 5433
Postgresql is sucessfully installed but is listening on port 5432.