Locating resources on Ubuntu
While you can certainly work with Odoo under the Windows environment, most of the community agrees that it is better to run your Odoo server under Ubuntu. At the time of publication, the stable release version is 16.04. Here are some resources that can help you get started with Ubuntu.
Official Ubuntu website
If you are planning on working with Odoo and Ubuntu you will want to begin by getting familiar with the official Ubuntu website:
Direct download of the Ubuntu server or desktop
Resources for downloading Ubuntu in various formats and configurations can be found at the following URL:
Official Ubuntu documentation
The official Ubuntu website has a comprehensive set of documentation that is a great reference for troubleshooting your Odoo installation: