I’m using the latest stable coreElec and nightly builds on a few amlogic devices. They are booting from external storage (usb, sd), but are setup to put the data on the shared emmc with the boxes native Android installs.
I’d like to create backup image files of the entire emmc (android & coreElec data) using dd commands from a coreElec ssh terminal. Thought running dd on the /storage device might do this, but I’m seeing dd output files that aren’t the same size/capacity of the entire emmc, so I’m not sure this process is copying what I want.
Can dd from a coreElec ssh terminal be used to get an image of the entire emmc in this setup, or is another procedure needed?