Had a skim through but can't see anything. Upgraded to 0.6.8 OpenCore but can't install Big Sur on my 5,1. Keep getting stuck in a boot loop. It installs then will restart the computer as expected, then launch the installer progress bar but restart at around 10% and repeat. Any suggestions or am I missing something painfully obvious? Thanks!
Posted this in the AMD thread as that's where h9826790's instruction for 0.6.8 were but seeing if I have any luck here if anyone knows! Thanks in advance!
@drunkmouth I've been struggling with same "boot loop" issues under 2 different scenarios. this is how I resolved:
Scenario#1-
UPGRADE: To Big Sur from Catalina-
Installation Method: Installer downloader 11.2.3 from App Store, 0.6.8 h9826790 (dropped into EFI, enabled TB3 hotplug only)
Hardware: Samsung EVO 970 NVMe 1TB (existing), everything unplugged (usb/firewire/etc) except HDMI
Issue: Endless boot-loops during installation process. Restored Catalina drive via Time Machine over 5+ times!
Fix: Created USB installer, 11.2.3 Fresh Install with Migration Assistant to restore programs and files.
Scenario#2-
FRESH INSTALL: Big Sur-
Installation Method: same as above
Hardware: Samsung EVO 870 500GB (brand new, qty: 2), nothing plugged in except HDMI
Issue: Occasional Installation Success with Welcome screen, random boot loop issues, excessive prohibitory symbol errors. Over 10+ attempts on 2 different EVO 870's!
Fix: Tested on 2 different SSD brands (SK Hynix Gold S31 500GB, PNY CS900 240GB, even tried an old SATA WD 1TB).
All successfully installed. zero issues!
In my case, not sure if boot loop errors are unique to my configuration, maybe the two EVO's I purchased were defective, or even worse, possible compatibility issues with EVO's under Big Sur. Hard to say without further testing and validation...
Hope this helps