cannot install macOS 10.13/later because of missing firmware partition
Hi guys,
I recently purchased a Mid 2012 13” as a computer in my other office. It came with a formatted hard drive, so I created a bootable installer of 10.12 Sierra. It completed successfully, but most of my apps didn’t work because of the obsolescence of 10.12. I know this computer can run 10.14/10.15 so I tried to install 10.14 (Mojave) but i got a message saying “you may not install to this volume because your computer is missing a firmware partition.” I tried to convert the drive to APFS because that fixed the issue in my 2015 pro. But then I got different message
(screenshot from 2009 MBP on 10.14 but exact same message on the 2012) So I restarted, reset the PRAM and tried a different disk but no luck. I found the newest EFI update (2.9) and tried to install the PKG and it gave me an alert that it cannot be installed on my computer. Any answers?
Cette question est-elle utile ?