I just created a microSD drive which isn't booting. It keeps there showing the Raspberries and the tilting underscore but not anymore.
I created using my Raspberry Pi 3B+ on the latest version of Raspbian, basically the new microSD is a copy of the current OS.
``` sudo dd if="./2018-11-13-raspbian-stretch-full.img" of=/dev/sdb bs=4M status=progress conv=fsync
Everything went ok and I set-it up for a headless start and even copied some files there (wpa_supplicant for wifi. .bashrc to keep customization and some files)