Unable to find rdoc for mepis


I’ve just setup mepis. It comes with 1.8.4. I though it would be easy to
install Rails on it. So, I downloaded the ruby gems. But when I try to
install it using ruby setup.rb. It cannot find Rdoc. I’ve tried
install rdoc. This gives an ‘rdoc not found in repository’ I’m now to
Debian, and could us some help. Where can I get a copy of Rdoc?

Best Regards,
“Work, work, work…there is no satisfactory alternative.”
— E.Taft Benson