Ubuntu is a great OS for your servers. Here at Backup Bird it is actually our favorite server OS at the moment. When it comes to back up and the installation of the Backup Bird agent the procedure is pretty much the same for all Linux distributions.
You can follow the general install guide for Backing up Linux.
You can also read more about Linux server backup in general by following the link. Backup Bird can also help you to back up MySQL and files on the server. No matter if you are running Ubuntu, Debian or some other system.