Cannot restore snapshot from raspberry pi 3 b to raspberry pi 4 b

I want to upgrade my hardware from a raspberry pi 3 b to a raspberry pi 4 b. I have taken a full snapshot from the 3b, installed basic hassio on the 4b (and enabled necessary addons such as samba), copied the backup to the backup folder on the 4b (rebooted, refreshed) but it’s not showing in the front end as a snapshot. Am I trying to do something that is simply not possible? It’s driving me crazy!

If I can’t do it this way, what’s the most painless method for migrating from the 3b to the 4b?

Many thanks,

Matt

I recently upgraded my sd card and later my raspberry to 4B, both times I simply copied my /config directory via samba to the new install.

So far no problems…