electrovalent Posted June 13, 2023 Share Posted June 13, 2023 Hi, Trying to boot opencore from USB EFI ESP on legacy bios system. Version is 0.9.3 I follow guide from Dortania's OpenCore Install Guide. EFI.zip Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/ Share on other sites More sharing options...
Avery B Posted June 15, 2023 Share Posted June 15, 2023 (edited) BOOT Fail means that DUET couldn't find "EFI/OC/OpenCore.efi". The format of your ZIP confused me a bit, since it's an EFI folder within an EFI folder. I would make sure that the structure of your EFI Partition looks something like: "<Root of EFI Partition>/EFI/OC/OpenCore.efi" Edit: The errors are explained in the Legacy folder in OC: https://github.com/acidanthera/OpenCorePkg/tree/b3d7e9f7cad6eed7b87566bb42efd8d7c8d4d3ad/Legacy#error-codes Edit 2: Last thing to check is that the architecture (x64 or ia32) for both Duet and OpenCore match each other. Edited June 15, 2023 by 1Revenger1 Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/#findComment-2806520 Share on other sites More sharing options...
droples Posted June 15, 2023 Share Posted June 15, 2023 On 6/14/2023 at 3:51 AM, electrovalent said: Hi, Trying to boot opencore from USB EFI ESP on legacy bios system. Version is 0.9.3 I follow guide from Dortania's OpenCore Install Guide. EFI.zip 4.54 MB · 5 downloads First, compare what you have in config.plist->UEFI->Drivers and what is in EFI->OC-> Drivers Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/#findComment-2806525 Share on other sites More sharing options...
electrovalent Posted June 15, 2023 Author Share Posted June 15, 2023 (edited) Thanks for providing info. I think that OpenCore.efi is where it should be. I don't know why the .zip came out this way. I am providing a screenshot for you to check. I also removed the entries from config.plist to match what is in EFI->OC-> Drivers but doesn't seem to change anything. Is there a way to check architecture for both open core and duet? Edited June 15, 2023 by electrovalent Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/#findComment-2806552 Share on other sites More sharing options...
makk Posted July 14, 2023 Share Posted July 14, 2023 (edited) interesting: there's a boot file at the bottom. Why is it there? remove that file. Two screen shots. 1 with yellow highlighter for the driver's that are necessary to boot HFSPLUS.efi OpenRuntime.efi OpenCanopy.efi < gui mode AudioDxe.efi < good to have so you know audio works on boot--chime--thus if no audio after boot, then config.plist needs some changes. ResetNvram.efi < clears NVRAM out to get fresh data. 2 showing no 'boot' file at bottom of EFI folder. <> although this is in Windows 11, using Explorer++ which shows all files hidden. The boot file is normally hidden. whereas it is clearly seen there. Should not be there to begin with. It is in a totally different Folder and hidden. Edited July 14, 2023 by makk Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/#findComment-2808240 Share on other sites More sharing options...
LockDown Posted January 8, 2025 Share Posted January 8, 2025 On 7/14/2023 at 3:49 PM, makk said: interesting: there's a boot file at the bottom. Why is it there? remove that file. It should be there. He's booting legacy Link to comment https://www.insanelymac.com/forum/topic/356952-boot-mismatch-boot-fail/#findComment-2829457 Share on other sites More sharing options...
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