# File lib/cloudmasterd.rb, line 155
    def _koan(host, system_name, repo)
      # Run the koan process
      output = `func "#{host}" call virt install #{repo} #{system_name} True #{system_name} /images`

      # Throw an exception if the process failed
      raise output unless $?.success?

      # Make the new host autostart
      `func "#{host}" call virt autostart #{system_name}`
    end