I am currently learning embedded linux on BeagleBone Black- A6a version. My question was are the u-boot.img file common to all the boards or should I write a separate u-boot.img file for every different version of board?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
I am currently learning embedded linux on BeagleBone Black- A6a version. My question was are the u-boot.img file common to all the boards or should I write a separate u-boot.img file for every different version of board?
Yes, the same u-boot binaries should boot these BBB versions. I use a same SD card to boot my rev C and A4B.
Hi Lui, currently I am connecting my A6a to PC (running on Ubuntu) via mini USB to USB serial. However when I try to boot via SD card it does not show my commands running on terminal and directly takes me to the beagle log in. I tried entering the beagle log in credentials and gives me:
llot@beaglebone:-#
Steps that is tried to boot via SD Card:
1. Connect BBB via USB mini to USB serial on PC (BBB A6a is ON state)
2. Open terminal, type- sudo minicom.
3. Once entered into minicom. I plug in the sd card on to BBB. Press and hold down the S3 (boot button). Simultaneously hold on to the S2( power button) untill the board powers off.
4. Power on the board (Tap on S2) and continue holding the S3.
5.Nothing comes up on terminal stays at the minicom screen and the LED on BBB keeps blinking.
Not sure which step is wrong. Kindly help me proceed to boot from SD card.
Please review the board schematics for the version of the board you use to check the button names. On my rev C board, S3 is power button while S2 is boot button,
To boot from SD card instead of eMMC, you need yo hold the boot button then tap the power button.