ruby-on-rails - Rails コンソールが動かない

Question

Opensuse に ruby​​ 2.0.0 と rails 4.0.0 をインストールしましたが、rails コンソールが機能しません。次のエラー メッセージが表示されます。

/home/zellou_i/.rubies/ruby-2.0.0-p247/lib64/ruby/2.0.0/irb/completion.rb:9:in `require': cannot load such file -- readline (LoadError)
    from /home/zellou_i/.rubies/ruby-2.0.0-p247/lib64/ruby/2.0.0/irb/completion.rb:9:in `<top (required)>'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands/console.rb:3:in `require'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands/console.rb:3:in `<top (required)>'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:53:in `require'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:53:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

わかりません。readline をインストールしましたが、読み込めません。