没有鼠标的情况下X起不来怎么办？

jimmelon

(**) Mouse0: Protocol: "PS/2"
(**) Mouse0: Core Pointer
(EE) xf86OpenSerial: Cannot open device /dev/mouse
        No such file or directory.
(EE) Mouse0: cannot open input device
(EE) PreInit failed for input device "Mouse0"
(II) Keyboard "Keyboard0" handled by legacy driver
(WW) No core pointer registered
No core pointer

Fatal server error:
failed to initialize core devices