On 30 September 2015 at 15:36, Gerald Coley <ger...@beagleboard.org> wrote:
> The manual is correct. It still boots from eMMC if the button i snot pushed
> as the first choice.
> If you push the button, it boots from SD if it is there.
>
> What SW chooses to do do does not alter these facts. SW has no control over
> the boot order.
>
> Gerald


Hi Gerald,

I agree with what you said and that the manual is correct from a
hardware point of view. However it would not be out of place (in my
opinion) to add a short sentence after this paragraph in section 6.7.2
of the manual:

"If you have a uSD card from which you need to boot from, hold the
boot button down. On boot, the processor will look for the SPIO0 port
first, then uSD on the MMC0 port, followed by USB0 and UART0. In the
event there is no uSD card and the eMMC is empty, USB0 or UART0 could
be used as the board source."

The sentence I suggest could be added would be something like:
"Note however that BBB ships with U-Boot on the eMMC configured to
boot from the uSD if one is inserted even if the boot button is not
pressed."

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