Installing Ruby and Ruby on Rails
From Projects Wiki
Installing Ruby and Ruby on Rails
Submitted by Ed Schoolcraft
#installing Ruby on Rails on Raspberry Pi:
#NOTE: Read a note somewhere that you need to use an SD card greater than 4G for this...
sudo apt-get update
#sudo apt-get upgrade (if desired but may take a while if you are way out of date)
sudo apt-get install -y openssl libreadline6-dev git-core zlib1g libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev \
libxslt-dev autoconf automake libtool bison libgdbm-dev libncurses5-dev libffi-dev
curl -L https://get.rvm.io | bash -s stable --rails
source ~/.rvm/scripts/rvm
#install a javascript runtime
sudo apt-get install nodejs
echo "If the versions do not list properly below, you may need to reboot."
ruby -v
rails -v