#

# USB to IMG 
sudo dd bs=4M if=/dev/sda of=21H2FIEDUUD.img status=progress 
sudo dd bs=4M if=/dev/sda of=021H2FIEDUU.img status=progress 

# IMG to USB
sudo dd bs=4M if=21H2FIEDUUD.img of=/dev/sda status=progress
sudo dd bs=4M if=021H2FIEDUU.img of=/dev/sda status=progress