Can't install Ruby on Rails with RVM on Ubuntu 13.04

Question

I am trying to install RVM on my Ubuntu machine.

I have used curl to get RVM, but some RVM commands (install, requirements) throw this apt-get error:

Answer 1

Try disabling repository which appear at 404 sudo apt-get update or viewing logs rvm. The fact is that when you install rvm is trying to update a list of your packages and if you have 404 to go to bed =)