GUIDE How to Create OpenCore EFI using OC Gen X [Intel/AMD]

[EliteMacx86]

How to Create OpenCore EFI using OC Gen X [Intel/AMD]

An EliteMacx86 Exclusive Guide - This guide covers the Creation of OpenCore EFI using the OC Gen X tool.

Overview

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EFI is the very basic requirement for being able to boot macOS on a particular system. There are several ways to create EFI configuration and to some extent it requires knowledge and for complex issues, an expertise is required. A guide is already available on this forum and is in extended form, covering every possible information. This guide uses the tool "OC Gen X" to create Open Core EFI. As it's a GUI based tool, creating EFI is very quick, within a few minutes only!

Creating OpenCore EFI

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To create OpenCore EFI, follow the steps below.

STEP 1: Gather System Information
It's always recommended to have your system information when creating an EFI configuration for your system.

STEP 2: Download OC Gen X
The next step is to download OC Gen-X tool for creating OpenCore EFI. Download OC Gen-X from the downloads section of this forum.

STEP 3: Preparing EFI
The next step is to prepare EFI. Once you have downloaded the tool, follow the steps below.

1. Open OC Gen-X tool.
2. Depending on your system, select the CPU Code name. The options are Intel Consumer, Intel HEDT and then AMD. For AMD systems, make sure to select the correct core count.
3. Once you have selected the System Type, click on Kext Tab and adjust the following, as per your system.

Type of Kexts	Kext
Essential	Lilu Must be enabled. VirtualSMC Must be enabled.
VirtualSMC Plugins	SMCProcessor Optional, required for temperature monitoring. SMCSuperIO Optional, required for temperature monitoring. SMCLightSensor Optional, required for temperature monitoring. SMCBattereyManager Optional, required for Laptops only.
Graphics	WhateverGreen Optional, required for Laptops only. AGPMInjector Not required
Audio	AppleALC Must be enabled.
Ethernet	SmallTreeIntel82576 Optional, required for temperature monitoring. AtherosE2200Ethernet Optional, required for Atheros based Ethernet chip. RealtekRTL8111 Optional, required for Realtek RTL8111 Ethernet chip. IntelMausi Optional, required for Intel Ethernet chip. LucyRTL8125Ethernet Optional, required for RealtekRTL8125 Ethernet chip.
USB	USBInjectAll Must be enabled.
WiFi and Bluetooth	AirportBrcmFixup Optional, required for Broadcom WiFi Card. BrcmPatchRAM3 Required for Broadcom Bluetooth For macOS Catalina to Big Sur BrcmPatchRAM2 Optional, required for Realtek RTL8111 Ethernet chip. BrcmBluetoothInjector Required for Broadcom Bluetooth. For OS X El Capitan to Big Sur BrcmFirmwareData Required for Broadcom Bluetooth.
Extra's	AppleMCEReporterDisabler Required for Dual CPUs.

NOTES: When selecting WhateverGreen, you'll get an option to add boot args for WhateverGreen. You can use the boot arg here or in step 6 When selecting AppleALC, you'll get an option to add boot args for AppleALC. You can use the boot arg here or in step 6. Typically, a boot arg for AppleALC is the Layout ID in the format alcid=xx, where xx represents your Layout ID.

4. Once you're done with Kext Tab, click on Firmware Drivers and select OpenRuntime.efi and HfsPlus.efi.
5. After Firmware Drivers, move to SMBIOS Tab and select the System Model close to your CPU model and click on the refresh button to update the data.



6. Once you have selected the SMBIOS, move to the Additional BootArgs tab and add the boot args. Boot Args typically depends on the system you have. However, mandatory boot args are -v

7. Once you're done with the above steps, simply click on Generate EFI and the EFI will be generated at your Desktop

NOTES: You may need to adjust Booter Quirks and Kernel Quirks as per your System. Depending on your system, additional kexts might be required. Framebuffer patching is required for IGPU.

 

[alex.12]

I followed the guide.
But the keyboard does not work in the boot menu.

 

[EliteMacx86]

I followed the guide.
But the keyboard does not work in the boot menu.

Did you add VoodooPS2Controller?

 

[alex.12]

Yes.