If you ever want to implement projects with Odoo and, like us, you are a bit itchy about non-free-software licenses and alternative BSD or LGPL-like licenses, you might want to know this. Odoo itself was previously (as OpenERP) AGPL, but it apparently (following David from Odoo S.A.
This is an attempt at shortening the installation time of Odoo (OpenERP 7) on a pristine Linux Debian system. In particular, we'll execute this procedure on a 2GB RAM VM from Digital Ocean, a recent, cheap and efficiente hosting provider. First off, you'll need to install PostgreSQL. This is important, as the Debian package for Odoo does not install nor configure postgresql at all.