Installation Instructions for Rails 3 on Ubuntu 10.10

Install Rails 3.sh

# Build Checklist (http://ruby.about.com/od/rubyversionmanager/ss/installrvmlinux_2.htm)
$ sudo apt-get install build-essential
$ sudo apt-get install curl
$ sudo apt-get install zlib1g-dev libreadline5-dev libssl-dev libxml2-dev libopenssl-ruby

# Install Distro Version of Ruby (Since RVM Is Written in Ruby)
$ sudo apt-get install ruby1.8 rubygems1.8

# First Install RVM (http://rvm.beginrescueend.com/)
$ bash < <( curl http://rvm.beginrescueend.com/releases/rvm-install-head )

# The first time you install RVM, you must put the following line into your ~/.bash_profile at the very end, after all path loads etc:

  # This loads RVM into a shell session.
  # [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"

# Install Some Required Packages to RVM (Just In Case!)
$ rvm package install zlib
$ rvm package install readline
$ rvm package install autoconf
$ rvm package install openssl

# Install Ruby 1.9.2
$ rvm install 1.9.2 --with-openssl-dir=$HOME/.rvm/usr

# Make Sure OpenSSL Is OK
$ cd ~/.rvm/src/ruby-1.9.2-p0/ext/openssl
$ ruby extconf.rb
$ make
$ make install

# Set the Default Ruby
$ rvm --default use 1.9.2

# Create Rails 3 Environment (For Gem Isolation)
$ rvm use --create 1.9.2@rails3

# At This Point, Check 'sqlite3' Install Via Synaptic
$ sudo apt-get install libsqlite3-dev
$ sudo apt-get install sqlite3
# Also Check That '.rvm/gems/ruby-1.9.2-p0/bin' Is In $PATH - If NOT:
$ export PATH=.rvm/gems/ruby-1.9.2-p0/bin:$PATH

# OK, Now Install Gems
$ gem install sqllite3-ruby
$ gem install rails

# Switching Back to System Ruby
$ rvm system
# ... And Back to Rails 3
$ rvm 1.9.2@rails3

Looks like this is working OK, just ran this from scratch on Meerkat, Ruby 1.92 and Rails 3.0.5.