After installing RVM if gem is giving you a zlib error, this info was useful on both Ubuntu and Debian: http://rvm.beginrescueend.com/packages/zlib/ http://rvm.

After installing RVM if gem is giving you a zlib error, this info was useful on both Ubuntu and Debian: http://rvm.beginrescueend.com/packages/zlib/ http://rvm.beginrescueend.com/packages/zlib/ edit: I put up a short tutorial on how to get this running on Lenny: http://www.reedglaw.com/rails/InstallRailsRVM http://www.reedglaw.com/rails/InstallRailsRVM