Ubuntu Raring 13.04 or Debian Wheezy 7.0.0 on the BeagleBone Black Booting from internal eMMC This image can be directly copied to the internal eMMC memory and booted. If an external SD card is in the socket, it will be booted instead. Additionally, after applying this image, there is no longer any need to hold down the USER/BOOT button to boot from SD — the presence of an external SD card alone