Cannot install Ruby on CentOS

For Ruby 1.8.6 I had to add another repository.

Create /etc/yum.repos.d/ruby.repo and add the following:

[ruby]
name=ruby
baseurl=http://repo.premiumhelp.eu/ruby/
gpgcheck=0
enabled=0

Then

yum --enablerepo=ruby install ruby

From www.centos.org forums.

Don’t bother installing rubygems this way, it’s obsolete.