How to Fix OpenCore Stuck at [EB|LOG:EXITBS:START]

Resolving the Most Common OpenCore Boot Freeze

Getting stuck at [EB|LOG:EXITBS:START] is the #1 issue for first-time Hackintosh builders. It means the kernel is trying to take over from the UEFI, but a Security or Memory setting is blocking it.

The Checklist to Fix It:

1. DevirtualiseMmio: Set this to True in Booter > Quirks. This is the most common fix for Intel 300-series and newer motherboards.
2. SetupVirtualMap: Try toggling this (if True, set to False; if False, set to True). It handles how macOS sees the BIOS memory map.
3. RebuildAppleMemoryMap: Set to True for older systems (Haswell/Broadwell) and False for newer ones (Comet Lake+).
4. CFG-Lock: Ensure 'CFG Lock' is Disabled in your BIOS. If you can't find the setting, set AppleCpuPmCfgLock and AppleXcpmCfgLock to True under Kernel > Quirks.