So in Catalina, on my desktop I had to hard disk icons... one was the main disk, the other I had named “extra” After updating I had to back up the files, apps, documents, etc; on to the opposite one for some reason, but now when Big Sur booted up there’s only one Hard Disk on my desktop. Even when I go to “about this Mac” into “storage” there’s only one showing up now. I don’t understand.. where did my other hard disk go?
