Installation on Dreamhost
From Habari Project
How to install Habari on Dreamhost.
Log into your dreamhost.com account by going to panel.dreamhost.com. Find the Manage Domain setting and make a fully hosted domain with PHP version 5.2.2.
You then need to go to Goodies > Manage MySQL. Scroll to the bottom of that page and find the bit that says Create a new MySQL database.
Make sure you create a new user and that you also change the hostname to the correct site.
Example: Database name: Habari Hostname: habari.example.com User: habari2 Password: habari12345
If you like you can put a comment on the database so you know what is in there.
Then follow the Install guides as normal.