Installing Ruby on Rails 3.1 for a clean install of Mac OS X

installing_rails_31_on_mac_os_x

# This is a guide for how I installed rails 3.1 on a clean install of Mac OS X 10.7 Lion.
# There is no Warranty expressed, and I am not responsible for any issues that may arise from following this guide.
# Installing rails should be simple. I cringed at other peoples methods shared via Twitter.
# Keil Miller July 26, 2011

# Install RVM
$ curl -L get.rvm.io | bash -s stable

# Load RVM into new shells
# As instructed from the above command, add the line stated to the very bottom of the following file
~/bashrc

# Confirm RVM is loaded in new shell
$ rvm -v

# Install ruby 1.9.3
$ rvm install ruby-1.9.3-p125

# Tell rvm to use ruby 1.9.3 as default
$ rvm --default use 1.9.3

# Create a new gemset for Rails 3.1 pre-release
$ rvm 1.9.3@ewok --create

# Confirm that your new gemset exists
$ rvm gemset list

# Update rake to 0.9.2 or newer
# It is important that you do this before installing rails
$ gem update rake

# Install Rails 3.1 pre-release
$ gem install rails --pre

# Confirm installed gems
$ gem list

The most recent ruby is ruby-1.9.3-p125, so instead of running line 17, run:
rvm install ruby-1.9.3-p194