Super, vielen Dank.
Bis zum OC-Startmenü kommt er noch nicht, das Log sieht wie folgt aus:
00:000 00:000 BS: Starting OpenCore application...
00:000 00:000 BS: Booter path - \EFI\BOOT\BOOTX64.EFI
00:000 00:000 OCFS: Trying to locate filesystem on DB7D9B98 D9D47C98
00:000 00:000 OCFS: Filesystem DP - \EFI\BOOT\BOOTX64.EFI
00:000 00:000 BS: Trying to load OpenCore image...
00:000 00:000 BS: Relative path - EFI
00:000 00:000 BS: Startup path - EFI\OpenCore.efi (0)
00:000 00:000 BS: Fallback to absolute path - EFI\OC\OpenCore.efi
00:000 00:000 BS: Read OpenCore image of 983040 bytes
00:000 00:000 OCM: Loaded image at D9DCF018 handle
00:000 00:000 OCM: Loaded image has DeviceHandle DB7D9B98 FilePath D9D47F98 ours DevicePath DB88FD18
00:000 00:000 OCCPU: Failed to get FSBFrequency data using Apple Platform Info - Not Found
00:000 00:000 OC: Starting OpenCore...
00:000 00:000 OC: Booter path - EFI\OC\OpenCore.efi
00:000 00:000 OCFS: Trying to locate filesystem on DB7D9B98 D9D47F98
00:000 00:000 OCFS: Filesystem DP - EFI\OC\OpenCore.efi
00:000 00:000 OC: Absolute booter path - EFI\OC\OpenCore.efi
00:000 00:000 OC: Storage root EFI\OC\OpenCore.efi
00:000 00:000 OCST: Missing vault data, ignoring...
00:000 00:000 OC: OcMiscEarlyInit...
00:000 00:000 OC: Loaded configuration of 40862 bytes
00:000 00:000 OC: Got 5 drivers
00:000 00:000 OC: Watchdog status is 0
00:188 00:188 OC: OpenCore DBG-084-2022-09-05 is loading in Optional mode (0/0)...
00:230 00:041 OC: Boot timestamp - 2022.09.12 15:36:32
00:271 00:040 OCCPU: MP services threads 4 (enabled 1) - Success
00:310 00:038 OCCPU: MP services Pkg 1 Cores 2 Threads 2 - Success
00:349 00:039 OCCPU: Found Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz
00:392 00:043 OCCPU: Signature 306A9 Stepping 9 Model 3A Family 6 Type 0 ExtModel 3 ExtFamily 0 uCode 12 CPUID MAX (D/80000008)
00:441 00:048 OCCPU: EIST CFG Lock 1
00:477 00:036 OCCPU: Timer address is 408 from LPC
00:514 00:036 OCCPU: Failed to get FSBFrequency data using Apple Platform Info - Not Found
00:658 00:143 OCCPU: Intel TSC: 2800018008Hz, 2800MHz; FSB: 100000643Hz, 100MHz; MaxBusRatio: 28
00:705 00:047 OCCPU: Detected Apple Processor Type: 09 -> 0904
00:747 00:042 OCCPU: CPUFrequencyFromTSC 2800018008Hz 2800MHz
00:784 00:037 OCCPU: CPUFrequency 2800018008Hz 2800MHz
00:830 00:045 OCCPU: FSBFrequency 100000643Hz 100MHz
00:869 00:038 OCCPU: Pkg 1 Cores 2 Threads 4
00:905 00:036 OC: OcLoadNvramSupport...
00:944 00:039 OCVAR: Locate emulated NVRAM protocol - Not Found
00:987 00:042 OC: Deleting NVRAM 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:DefaultBackgroundColor - Not Found
01:033 00:045 OC: Not deleting NVRAM 4D1FDA02-38C7-4A6A-9CC6-4BCCA8B30102:rtc-blacklist, matches add
01:076 00:043 OC: Deleting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:boot-args - Not Found
01:116 00:040 OC: Deleting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:csr-active-config - Not Found
01:174 00:057 OCVAR: Setting NVRAM 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:DefaultBackgroundColor - Success
01:216 00:042 OCVAR: Setting NVRAM 4D1FDA02-38C7-4A6A-9CC6-4BCCA8B30102:rtc-blacklist - Not Found
01:270 00:054 OCVAR: Setting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:SystemAudioVolume - Success
01:317 00:046 OCVAR: Setting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:boot-args - Success
01:364 00:046 OCVAR: Setting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:csr-active-config - Success
01:408 00:044 OCVAR: Setting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:prev-lang:kbd - Success
01:451 00:043 OCVAR: Setting NVRAM 7C436110-AB2A-4BBB-A880-FE41995C9F82:run-efi-updater - Success
01:495 00:044 OC: Current version is DBG-084-2022-09-05
01:539 00:043 OC: OcMiscMiddleInit...
01:575 00:036 OC: StorageHandle DB7D9B98 with Disabled LauncherOption pointing to Default
01:618 00:043 OC: OcLoadUefiSupport...
01:654 00:036 OCAU: OcAudioInstallProtocols (0, 0)
01:693 00:038 OCAU: 4B228577-6274-4A48-82AE-0713A1171987 protocol - Not Found
01:730 00:036 OCAU: C32332DF-FC56-4FE1-9358-BA0D529B24CD protocol - Not Found
01:770 00:039 OCAU: F4CB0B78-243B-11E7-A524-B8E8562CBAFA protocol - Not Found
01:814 00:043 OCAU: 3224B169-EC34-46D2-B779-E1B1687F525F protocol - Not Found
01:854 00:040 OCAE: Builtin installed
01:891 00:036 OCRTC: Wake log is 0x00 0x00 0 0x00
01:927 00:036 OC: Loading Apple Secure Boot with Disabled (level 0)
01:967 00:039 OCII: AIFTimerBoostInit Current timer is 10000
02:009 00:041 OC: Installing KeySupport...
02:138 00:128 OCII: gST->ConIn DE8CDC20 vs found DE8CDC20
02:274 00:136 AIK: Using 5 (50ms)
02:308 00:033 OCABC: ALRBL 0 RTDFRG 1 DEVMMIO 0 NOSU 0 NOVRWR 0 NOSB 0 FBSIG 0 NOHBMAP 0 SMSLIDE 1 WRUNPROT 1
02:355 00:047 OCABC: FEXITBS 0 PRMRG 0 CSLIDE 1 MSLIDE 0 PRSRV 0 RBMAP 0 VMAP 1 APPLOS 0 RTPERMS 0 ARBAR -1
02:400 00:044 OCABC: Firmware has 1937283 free pages (892803 in lower 4 GB)
02:448 00:048 OCABC: Awaiting rendezvous with OpenRuntime r12
02:487 00:039 OC: RequestBootVarRouting 1
02:527 00:039 OC: Got 5 drivers
02:571 00:043 OC: Driver HfsPlus.efi at 0 () is being loaded...
02:620 00:049 OCABC: EfiBootRt candidate - <nil>
02:659 00:038 OCABC: IsEfiBootRt 0 (BP 1, Apple 0)
02:701 00:042 OCB: Arch filtering 0(37892)->DA5C4018(37892) caps 4 - Success
Dann hängt er. Und ja, Big Sur ist das System der Wahl.