I have Beelink on my OPI-PC installed and configured just the way I like it. I would like to back it up to my PC in case I ever need to replace the SD card. I am also thinking of upgrading from a 16gb card to a 32gb card. So first how do I back up to my computer? Second can I install a backup from a 16gb card onto a 32gb card?
The easiest way is to insert a clean SD and use DD to copy the EMMC contents to SD (it will delete everything on the SD!), then insert the SD on PC and use DD again (or similar on Windows) to save the image.