[Tutorial - Outdated] Odroid: - Move the filesystem to a USB Drive

Can i use this for the HC1/2? I only want to use the Hardrive for my userdata (Nextcloud/Ampache…) or is there an other way? During a fresh install i cant choose the hardrive (topic: https://dietpi.com/forum/t/odroid-hc2-cant-use-mount-hard-disk-edited/2341/1)