[OrangePi] Backup internal EMMC to SD Card

• Boot your Orange PI board from EMMC without SD Card inserted
• login
• insert your SD Card
• Run:
• 1. sudo install_to_sdcard [btrfs]

  Copy the Code
  
  
• Your emmc Linux installation will be transfered to SD Card
• You can boot from that SD Card on another or the same OPI board
• If booting on different OPI board, remember to copy the kernel (uImage) and script.bin for that board