$ apt-get install ruby rubygems1.8 ruby1.8-dev libopenssl-ruby1.8 libpgsql-ruby1.8 irb1.8
Para Ruby 1.9.1:
$ apt-get install ruby1.9.1-full rubygems1.9.1 ruby1.9.1-dev libopenssl-ruby1.9.1 libpgsql-ruby1.9.1 irb1.9
Para todos:
$ apt-get bcrypt libxml2 libxml2-dev libxslt1-dev postgresql
$ gem install rails rake authlogic brazilian-rails cucumber-rails factory_girl webrat rspec-rails remarkable_rails pg webrat will_paginate bcrypt-ruby database_cleaner inherited_resources formtastic haml capistrano capybara dry_scaffold devise nifty-generators
