====== rootfs メディア選択 (DIPSW) ======

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^  DIPSW  ^^^^  rootfs  |
^  1  ^  2  ^  3  ^  4  ^ ::: |
|  OFF  |  OFF  |  OFF  |  OFF  |UBI (AREA=x, auto select)|
|  **ON**  |  OFF  |  OFF  |  OFF  |UBI (AREA=x, auto select)|
|  OFF  |  **ON**  |  OFF  |  OFF  |SCSI(SSD or USB) (root=/dev/sda1)|
|  **ON**  |  **ON**  |  OFF  |  OFF  |SDcard (root=/dev/mmcblk0p1)|