Unable to update to newer OS
Hi,
I have a Mac Pro "Trash bin" that has a third party OWC Aura SSD installed. The problem I now have is downloading newer versions of OS on the computer. The OWC Aura SSD is in MacOS Journaled format, which was required to even download Sierra through internet recovery because the Mac had its OS completely erased. Now im not able to download anything above Sierra, when im for example trying to download High Sierra or Mojave the HDD is greyed out with the message "you may not install to this volume because the computer is missing a firmware partition". I read that this occurs becuase the HDD is required to be in APFS-format to be able to download the OS. Ive tried to create another partition and making it to APFS-format but that is not an option since Sierra does not seem to support APFS. Time Machine backup does not work either, so now im in a complete dead end.
Anyone here with more experience with Apple OS than me who can help me find a solution?
Kind regards,
Artin
Mac Pro