The partition is mounted with two options, one to allow the device to be read from and wrote to and the other to remount the device as read only in the event of any errors.

• 这个分割区被挂载时有两个选项，一个是允许以读写方式存取这个装置，另一个就是当有错误发生时以只读方式重新挂载这个装置。