- Joined
- Nov 28, 2011
- Messages
- 32
- Motherboard
- Gigabyte Z490 Vision D
- CPU
- i9-10900K
- Graphics
- RX 580
If you can boot into Mojave, try starting the Monterey upgrade again.
If that also fails then a fallback plan would be to install fresh copy of Monterey and use Migration Assistant to import applications and data from the backup (cloned) disk.
I installed a fresh copy of Monterey and then used the Migration Assistant to get my data over. Worked perfectly, but then, as soon as I installed the HighPoint-Driver for my Highpoint 7101a Card the system hangs on boot. Thats strange as this controller is working perfectly on Big Sur in this machine. Anything I could do? Maybe its because I'm using iMac Pro as SMBios and this machine has no PCIe slots? But as I said, its working on Big Sur with the exact same EFI ..