On Sat, May 13, 2017 at 05:39:39AM +0000, Kenneth Hendrickson wrote: > Toggling the bootable flag on the MSDOS partition on the internal flash, so > that only the MSDOS partition on the Micro SD card had the bootable flag set, > DID NOT WORK. > > Nothing seems to work. > > What is the secret sauce to get it to boot from the micro SD card?
You need to hold down the boot switch while booting to boot from SD card if the eMMC contains a msdos filesystem with MLO etc. If booting from eMMC fails or is skipped with the boot switch the SD card will be used as the boot device. http://www.elinux.org/Beagleboard:BeagleBoneBlack#BeagleBone_Black_Connector_and_Switch_Locations
