[AIOT] Resize Image for Tinker Board 3N

1. Connect Tinker Board 3N to PC via USB-C

2. Power on Tinker Board 3N and enter UMS mode

Note: If want to resize eMMC image, please power on Tinker Board 3N and enter SD card UMS mode.
• microSD card: With another Debian installed (It could be flashed an image thru Etcher or Win32DiskImager under Windows environment or dd under Linux.)

3. Download tinker_resize.sh and dump image from eMMC with dd command

sudo dd bs=4M if=/dev/sdX of=/path/xxx.img
 

4. Use tinker_resize.sh to reduce image size

chmod +x tinker_resize.sh
sudo ./tinker_resize.sh xxx.img