I have several ePaper displays powered by Pi Zeros, running custom projects.
Ideally if the SD card goes (which has happened) I’d like to have a backup that I can load onto a fresh SD card and slip that into the Pi and have everything back up and running.
What’s the best way to backup these SD cards? Make an image of it? Can I save an image of the card in a file on my hard drive? Can I do this remotely or do I have to pull the card out? What tool do I use?
