1. gem env
should be 1.3.6 or above
2. gem update --system
Update Ruby gems to the latest version
3. sudo gem install i18n tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler i18n bundler
Install required gems for Rails 3.0
4. sudo gem install rails --pre
Installs Rails 3.0 Beta 4
5. sudo mkdir /usr/local/lib/ruby/gems/1.9.1/gems/rails-3.0.0.beta4/lib
Create the lib directory to resolve the following error
ERROR: While executing gem ... (Errno::ENOENT)
No such file or directory - lib
