Now copy the entire target file system into that directory. Create a subdirectory under your home directory to match what you specified for rootpath in uEnvnet.txt. What you can do is copy from the BBB eMMC over the network to your workstation. You do not want to copy it from the microSD card, because that image is specifically intended for flashing the eMMC. It boots Debian 7.4 from the eMMC.ДЇinally, you need to get the target root file system on to your workstation under your home directory. Power down the board, remove the microSD card and repower the board. When the four LEDs come on steady, the flashing is finished. That something else is flashing the eMMC. But the pattern of the LEDs indicates that something else is going on. The kernel will boot up as normal, and present a login prompt. In my case, the mere presence of a microSD card causes the board to boot from the card.

The BBB documentation says that to boot from the microSD card, you must hold down the boot pushbutton while applying power. Insert the microSD into your unpowered BBB. This image is specifically for flashing the eMMC. When it is finished, there will be two partitions on /dev/sdb a bootable FAT partition named BEAGLEBONE, and an ext4 partition named eMMC-Flasher. Write this file to the microSD card with the dd command:Дd if= of=/dev/sdb

Which partition should be active