From Rivendell Wiki
Rivendell can be installed onto a RHEL/CentOS system using an installer script. This is now the preferred option when installing new machines. There are two sets of instructions depending on the version of RHEL/CentOS that you are using.
Ubuntu Xenial (16.04)
Rivendell can be compiled / installed onto a Ubuntu machine. The instructions to do so can be found here
All information below is out of date and needs to be updated (22nd Feb 2018)
Rivendell on Debian 6 (Squeeze). This is intended as a beginners guide that will walk you through getting Rivendell, JACK and Pulse Audio working with Debian 6. It is screen shot and explanation heavy.
The easiest way to install Rivendell using Ubuntu is to use the RRAbuntu Live CD installer. You can also test it out without installing the software.
A complete guide for installing Rivendell on Ubuntu 11.04 can be found here.