11-10-2018, 04:34 PM
The u-boot on the EMMC is responsible to handle such feature. I think that all installation require such u-boot feature. But on the SD card is not used, when is away from the TBS. Even thought is the same u-boot. The host computer or a reader will identify the SD card, without to run anything from that.
For better understanding, the u-boot on eMMC will try always to boot, but it will find the answer that is plugged to a USB port and then start to serve the internal memory as a reader does.
Beware that if there is anything connected to the USB, on TBS, it may get spoiled because of power glitches and any other attempt to run the system, before to surrender to serve as reader. I blown my WiFi dongle, because I oversight to remove it.
For better understanding, the u-boot on eMMC will try always to boot, but it will find the answer that is plugged to a USB port and then start to serve the internal memory as a reader does.
Beware that if there is anything connected to the USB, on TBS, it may get spoiled because of power glitches and any other attempt to run the system, before to surrender to serve as reader. I blown my WiFi dongle, because I oversight to remove it.
Light blue words might be a link. Have you try to click on them? 
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