code: def additions_mount():
      '''
      Mount VirtualBox Guest Additions CD to the temp directory.
  
      To connect VirtualBox Guest Additions via VirtualBox graphical interface
      press 'Host+D' ('Host' is usually 'Right Ctrl').
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_mount
  
      :return: True or OSError exception
      '''
      mount_point = tempfile.mkdtemp()
      ret = __salt__['mount.mount'](mount_point, '/dev/cdrom')
      if ret is True:
          return mount_point
      else:
          raise OSError(retf additions_mount():
      '''
      Mount VirtualBox Guest Additions CD to the temp directory.
  
      To connect VirtualBox Guest Additions via VirtualBox graphical interface
      press 'Host+D' ('Host' is usually 'Right Ctrl').
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_mount
  
      :return: True or OSError exception
      '''
      mount_point = tempfile.mkdtemp()
      ret = __salt__['mount.mount'](mount_point, '/dev/cdrom')
      if ret is True:
          return mount_point
      else:
          raise OSError(ret)
docs: Mount VirtualBox Guest Additions CD to the temp directory.
  
      To connect VirtualBox Guest Additions via VirtualBox graphical interface
      press 'Host+D' ('Host' is usually 'Right Ctrl').
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_mount
  
      :return: True or OSError exception