The failsafe way to do it is: 1. disconnect everything 2. insert the card you want to clone, and boot from it 3. Insert the blank card you want to copy the ...
The SD Card copy utility is safe and reliable. It works by formatting a fresh image on the card then performing a file by file copy (AFAIK ignoring virtual ...
Raspian does now come with a bespoke SD card copier. rouble is is that it's a GUI tool. This is quite annoying as you'd expect that most Raspberry Pi users ...