My config: - Linux Laptop - Android phone (Fairphone 2, Android 6) with external 64 Gb SD-card using as extended internal memory for Android (System is encrypted, but I guess this should not matter for my question)
I am referring to this thread: Is this the right way to use dd for a full backup?
As far as I understand, this does a full back up of the phone. If I restore this image the system should be exactly as it was before. But does is also work if I am using an SD-card to extand the phone's internal memory? If yes, cool. If no, what do I have to do in addition?