Hi, I have heard there is an SD card copier included with recent versions of full Raspbian. Is there a command line equivalent? I'm just using the no GUI version.
Also what I'm more interested in is dedicating a pi to taking images of any SD card I put in there; I have set up a pi3B to boot from a USB stick and, once booted, I have tried putting an SD card in the onboard slot with another bootable image, then looked at it with fdisk; seems to work. My second question is: once finished taking an image of it, am I OK removing this SD card with the pi still powered up since it is not using it for the OS and it shouldn't be writing anything to it?
My ultimate aim for this is to have an easy way of backing-up my SBC cards easily and saving to a local HDD; ideally with a physical button to start a dd script and a small display to show progress.