Ubuntu

Installing Ruby

The easiest way to install Ruby and RubyGems is via Ubuntu’s built in package manager:

$ sudo aptitude install ruby1.8-dev ruby1.8 ri1.8 rdoc1.8 irb1.8 libreadline-ruby1.8 libruby1.8 libopenssl-ruby wget
$ sudo ln -s /usr/bin/ruby1.8 /usr/bin/ruby
$ sudo ln -s /usr/bin/ri1.8 /usr/bin/ri
$ sudo ln -s /usr/bin/rdoc1.8 /usr/bin/rdoc
$ sudo ln -s /usr/bin/irb1.8 /usr/bin/irb

Installing RubyGems

It is recommended that you install RubyGems from source. All the dependencies for RubyGems were installed above already so installing from source is fairly painless:

$ cd ~
$ wget http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz
$ tar xvzf rubygems-1.3.7.tgz
$ cd rubygems-1.3.7
$ sudo ruby setup.rb
$ sudo ln -s /usr/bin/gem1.8 /usr/bin/gem

You’ll also want to verify that RubyGems is fully updated, since the packages can often get out of date:

$ sudo gem update --system

VirtualBox OSE

By default, VirtualBox installed via Ubuntu’s package repositories will be “VirtualBox Open Source Edition (OSE).” Vagrant may work with this edition (as long as its version 3.1+), but it is not officially supported. It is recommended that you download the installation package from the VirtualBox website for the full version.