Hi all! How can i boot my BBB from embeded eMMC with inserted microSD

Electronics
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1

Hi all!

How can i boot my BBB from embeded eMMC with inserted microSD card?

I use the latest version of angstrom with enabled automount microSD card, but when i trying to reboot BBB it tries to boot from SD card but not from eMMC

2

Change the boot sequence. The SD card has precedence over the flash.
Add a uEnv.txt file to the SD card
Paste the following in it:
mmcdev=1
bootpart=1:2
mmcroot=/dev/mmcblk1p2
optargs=quiet

Reboot the black
https://groups.google.com/d/msg/beagleboard/MKApMsH3Q7M/YhAavCRuadgJ for more details.

3

Or solder/remove some of the resistors. Check the TRM for details

4

Thank you for answers!
I`ll try to add uEnv.txt.
I think, it is the better way to change this programmatically =)

5

@Zygmunt_Krynicki
Can you give me a link on TRM?
May be something I do not understand

6

Sure, let me find it for you

7

google spruh73h.pdf

8

Hmm, I cannot find it on TI’s website anymore (perhaps the revision has gone up?) This is a link I did manage to find: http://www.element14.com/community/servlet/JiveServlet/downloadBody/53900-102-3-273874/TI.Reference_Manual_1.pdf