@korn16ftl3 the legacy format is root=/dev/sda1 (or whatever drive and partition holds / (the root filesystem). Same format a la /dev/sda1 goes for /etc/fstab.

FWIW, there is a good reason why the legacy format is discouraged: https://wiki.archlinux.org/title/Persistent_block_device_naming

@hellothere try using the official retropie docs instead of a YouTube tutorial

@johnodon Thanks for the info. How do I install the image without overwriting the system files?