If you want to run ruby1.9 and rails3 on ANY distro right now (debian, ubuntu, fedora, centos), just install ruby1.9.2 from source and save yourself tons of agg

If you want to run ruby1.9 and rails3 on ANY distro right now (debian, ubuntu, fedora, centos), just install ruby1.9.2 from source and save yourself tons of aggravation, believe me, I just went through this.