sudo sh ~/Downloads/crouton -t cl-extra
After installing Ubuntu I had about 10.5 GB of free local storage (remember, Chrome OS is also installed). After installing the gnu command line development tools, Ruby 2.1, Java 8, lein for Clojure development and several of my Ruby and Clojure projects I still have 7.5 GB of storage. I still want to install Haskell so I will have less space to work with.
When developing web apps, you can test using the Chrome web browser since crouton runs Ubuntu right along side Chrome OS. For example, I was running a Sinatra app using port 4567 and could just hit the URL http://localhost:4567 on the Chrome browser in Chrome OS. Easy. I thought that I might have to start a ssh tunnell beyween the two Linux environments, but that was not required.
Opening several terminal windows using ctrl-alt t and then starting a shell in each with: