- Nov 26, 2020
I recently installed Big Sur on my MacBook Pro. I hated it so I tried to go back to Catalina. When I erased the partition somehow I deleted it and now I am left with Mac OS base system and above it there is the uninitialized APPLESSD APO256M Media. I can’t seem to create a new partition for Macintosh HD to install the OS and I’m freaking out!!! Can someone please help me?!?