forbidden symbol appears after entering the installation
- Thread starter win10Q
- Start date
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Hello Guest. Before you post check the Troubleshooting guide here, Dortania Troubleshooting
You're still using iMacPro on your SMBIOS, but it's no longer supported on the Tahoe. Try MacPro7,1 Intel Xeon W-3245M.
Forbidden sign and text at base of Verbose list saying 'Still waiting for root device' usually means the USB port containing the installer has not been activated when OpenCore hands over control to the OS.
This is likely caused by you using iMacPro1,1 SMBIOS when trying to install Tahoe. iMacPro1,1 is not a supported system for Tahoe. You need to change this to MacPro7,1 in your USBPorts.kext/Contents/info.plist and your config.plist.
You should not have the XhciPortLimit Quirk enabled when using a custom USB configuration/kext.
You do not need SSDT-PMC.aml, this is an SSDT required for 300 Series Intel systems. It is never to be used with an AMD system.
I don't believe you need all the boot args in your config.plist.
-lilubetaall agdpmod=pikera revpatch=sbvmm,cpuname brcmfx-country=#a -no_compat_check
Revpatch=cpuname is already present in the NVRAM > Add section above. Adding revpatch > String > auto,sbvmm would be a better option. You would also need to add the additional string entry to the NVRAM > Delete section.
-no_compat_check is not needed, I haven't needed it on any of the B550 systems I have built or configured to run macOS.
csr-active-config should be set to <03080000> not <FF0F0000>
Most of these changes have been applied in the EFI-rev1 folder attached below.
You need to add the Serial Number, MLB, ROM and SystemUUID entries for your new MacPro7,1 SMBIOS. This is all you need to change/add to the EFI.
Try it and see how it works for you.
This is likely caused by you using iMacPro1,1 SMBIOS when trying to install Tahoe. iMacPro1,1 is not a supported system for Tahoe. You need to change this to MacPro7,1 in your USBPorts.kext/Contents/info.plist and your config.plist.
You should not have the XhciPortLimit Quirk enabled when using a custom USB configuration/kext.
You do not need SSDT-PMC.aml, this is an SSDT required for 300 Series Intel systems. It is never to be used with an AMD system.
I don't believe you need all the boot args in your config.plist.
-lilubetaall agdpmod=pikera revpatch=sbvmm,cpuname brcmfx-country=#a -no_compat_check
Revpatch=cpuname is already present in the NVRAM > Add section above. Adding revpatch > String > auto,sbvmm would be a better option. You would also need to add the additional string entry to the NVRAM > Delete section.
-no_compat_check is not needed, I haven't needed it on any of the B550 systems I have built or configured to run macOS.
csr-active-config should be set to <03080000> not <FF0F0000>
Most of these changes have been applied in the EFI-rev1 folder attached below.
You need to add the Serial Number, MLB, ROM and SystemUUID entries for your new MacPro7,1 SMBIOS. This is all you need to change/add to the EFI.
Try it and see how it works for you.
Thank you for your guidance, but unfortunately, it will still be stuck in the restricted area, and the installer and USB drive are the same.
Attachments
-no_compat_check is a fudge/workaround it shouldn't be used long term when the correct response is to change the SMBIOS to one that works.
I have added the SMBIOS for a MacPro7,1 to the attached EFI.
Try it and see if this helps.
You really need to do some research and learn how to edit a config.plist. This a basic Hackintosh procedure.
I have added the SMBIOS for a MacPro7,1 to the attached EFI.
Try it and see if this helps.
You really need to do some research and learn how to edit a config.plist. This a basic Hackintosh procedure.
Check you have the Bios set correctly to run macOS.
AMD BIOS Settings
AMD BIOS Settings
- Note: Most of these options may not be present in your firmware, we recommend matching up as closely as possible but don't be too concerned if many of these options are not available in your BIOS
- Fast Boot
- Secure Boot
- Serial/COM Port
- Parallel Port
- Compatibility Support Module (CSM) (Must be off in most cases, GPU errors/stalls like gIO are common when this option is enabled)
- IOMMU
- Above 4G Decoding (This must be on, if you can't find the option then add npci=0x3000 to boot-args. Do not have both this option and npci enabled at the same time.)
- If you are on a Gigabyte/Aorus or an AsRock motherboard, enabling this option may break certain drivers(ie. Ethernet) and/or boot failures on other OSes, if it does happen then disable this option and opt for npci instead
- 2020+ BIOS Notes: When enabling Above4G, Resizable BAR Support may become an available on some X570 and newer motherboards. Please ensure that Booter -> Quirks -> ResizeAppleGpuBars is set to 0 if this is enabled.
- EHCI/XHCI Hand-off
- OS type: Windows 8.1/10 UEFI Mode (some motherboards may require "Other OS" instead)
- SATA Mode: AHCI
Have ou checked your bios is set correctly?
What do you mean it's not working?
What are you seeing/not seeing when you try to use the MacPro7,1 SMBIOS in the EFI attached above?
We need to know what is happening or not happening when you boot your system, so we can look in the correct place to help fix the issue.
What do you mean it's not working?
What are you seeing/not seeing when you try to use the MacPro7,1 SMBIOS in the EFI attached above?
We need to know what is happening or not happening when you boot your system, so we can look in the correct place to help fix the issue.