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I'm currently trying to upgrade my 13'' Mid 2012 MacBook Pro from macOS Mojave to macOS Catalina. Upgrade from Mojave to Catalina - Recovery mode doesn't show option to convert to APFS filesystem Hi everyone,

I searched the web and found no info about this mysterious button that seemed to resolve my issue. Is this OK? What was that button that I probably should not have pushed but did any way? I don't usually go pressing things until I know what they are. I am attaching drive info for you to see. I have El Capitan running on my new SSD drive. HOWEVER, now I was able to restore from my HFS+ backup onto my new hard drive which went with no problems. I went ahead and formatted again just for grins.

Still no option for anything except APFS. I pressed erase again to see if I could format and either get my other structure back or format to the HFS+. There was a button in the lower left corner that said something about pooling or grouping and I pressed it out of desperation and the structure of the drive changed from 2 volumes to only one and the drive erased. While trying to erase the SSD drive with intentions of changing it to HFS+ file system there were no options to do so. I tried to restore from backup and go back to El Capitan and got the message about HFS+ not being able to restore to APFS drive. After replacing a failing hard drive in my Mac Mini (late 2012) with an ssd drive I decided to update from El Capitan to Catalina.