capybara_webdriver.rb

def use_selenium_driver driver
  $__capybara_selenium_driver_name = driver
end

def selenium_driver
  $__capybara_selenium_driver_name || :firefox
end

def (Capybara::Driver::Selenium).driver
  unless @driver
    if selenium_driver == :firefox
      @driver = Selenium::WebDriver.for :remote,
        :url => 'http://remoteserver:4444/wd/hub',
        :desired_capabilities => Selenium::WebDriver::Remote::Capabilities.firefox
    else
      @driver = Selenium::WebDriver.for selenium_driver
    end
    at_exit do
      @driver.quit
    end
  end
  @driver
end

run_webdriver_server_for_htmlunit.sh

nohup Xvfb -ac -screen scrn 1024x768x24 :2.0 &
export DISPLAY=:2.0
java -jar selenium-server-standalone-2.0a4.jar