cross posted from Mojave’s thread
Hello. This forum has been of so much help to me in the past year with my journey with my cMP. However, I am having an issue that finally moved me to make an account and post about.
Some necessary information:
- My boot drive is a Crucial P1 NVMe SSD connected with an adapter to a x4 PCIe slot.
- I had an old HDD as a backup drive in a SATA bay.
- I have an RX 580 and the original EFI GPU.
Recently I decided to take on the upgrade to Mojave (mostly for HW accel) from my long time stay with High Sierra. BootROM upgrade went with no error (in fact I had upgraded to 140.0.0.0 sometime in the past to receive NVMe booting support, so I just needed to jump to 144.0.0.0). I had to switch the Wifi card which went perfect.
So I started the Mojave installer. However, when I finished updating to Mojave, I could not boot to my NVMe SSD. It worked initially when the update finished and the computer booted itself up (funny I have a screenshot of me in Mojave), and a Restart I tried worked; but when I shut it down, reset the PRAM/NVRAM (as I was having trouble with iMessage), and tried booting it would not display an image. I slotted in my EFI GPU and confirmed that, even when manually set, the Mac Pro would refuse to boot from my NVMe SSD.
Is there an issue with my SSD; is my SSD not compatible with Mojave? What would you guys recommend I try? I am posting this from my Mac which I was very fortunate to restore from my backup HDD to High Sierra. I really want Mojave, but at this point I feel like I have to get a SATA SSD to be on Mojave, but that would mean my NVMe SSD would be unused until my next rig and, in turn, a waste of money. Am I missing something?
One thing I have noticed is that APFS seems to mess with my SSD. I think a few months back I tried to upgrade to APFS in High Sierra, and after that I couldn't boot and had to restore back to HFS+. Perhaps it's not Mojave and just APFS?
Thank you all in advance, and thank you for all the information you put up previously that has sustained me until now.