OS: BPI-M3 Ubuntu15.10 (Kernel3.4)
Version: 1.0 HDMI
Step 1: Start up the computer with the SD card which has been burnt with the Linux images.
Step 2: Put the images which you'd like to burn to the EMMC Storage to the USB drive.
Step 3: Run "fdisk -l" command line on your BPI-M3 and you can see the EMMC path as " /dev/mmcblk1"
sudo fdisk -l
Step 4:Switch to the path of images, and run the command.
sudo dd if=ubuntu-mate-15.10-desktop-armhf-raspberry-pi-2-bpi-m3-sd-emmc-20151203.img of=/dev/mmcblk1 bs=10MB
Step 5:When finish burning, remove the SD card, and restart the BPI-M3
Step 6:Check if the system starts normally on the EMMC flash boot.
video demo on youtube: