[GUIDE] Installing Sonoma 14.1.1 on GIGABYTE GA-H270N-WIFI using OpenCore

[samcrow]

Note
This guide assumes that you have access to working Mac computer and that your hardware configuration matches the one listed below. Wifi and Bluetooth work but I replaced the mini PCIe wifi card with a BCM94360CS2 which has native Apple support until Ventura. For Sonoma I had to use a workaround explained below.

Hardware

• GIGABYTE GA-H270N-WIFI LGA1151 Intel H270 Mini ITX DDR4 Motherboard
  • I replaced the original mini PCie card with a BCM94360CS2 and a mini PCI-E to 12+6 Pin
• Intel Core i3-7100 7th Gen Core Desktop Processor 3M Cache,3.90 GHz
• SSD Lexar NS100 1TB 2.5” SATA III
• macOS Sonoma 14.1.1

Bios Settings

• Load Optimized Default
• Under BIOS Tab:
  • Windows 8/10 Features = Other OS
  • Storage Boot Option Control = UEFI
• Under Peripherals Tab:
  • Initial Display Output = IGFX
  • In USB Configuration:
    • XHCI Handoff = Enabled
• Under Chipset Tab:
  • VT-D = Disabled
  • Internal Graphics = Enabled
  • DVMT Pre-Allocated = 64M
• Save and Exit

What works?

• Onboard Bluetooth and Wifi = N/A
• BCM94360CS2 card = Bluetooth and WiFi
• Ethernet = Both LAN1 and LAN2
• Onboard Bluetooth = No
• GPU = Both HDMI (x2) and DVI
• Shutdown = Yes
• Restart = Yes
• Sleep = No
• Sound = Line out and digital out. line in and mic in
• USB ports = All of them

Installation

1. Download the latest release of the OpenCore Legacy Patcher (only for Post-Install Root Patch)
2. Create your own drive as a bootable macOS Sonoma installer
3. Now mount the EFI partition of your instal drive and make sure it is empty
4. Download my EFI project's latest release HERE and unzip the archive, this will give you a single folder named EFI
5. Copy the EFI folder to the root of your instal drive EFI partition
6. Download config.plsit from the my repository HERE
7. Download OpenCore Configurator to edit config.plist
8. Under the NVAM section, expand 7C436110-AB2A-4BBB-A880-FE41995C9F82 and add the following to boot-args "-v keepsyms=1 debug=0x100 alcid=21"
9. Under PlattformInfo, select the DataHub - Generic - PlattformNVRAM. Select iMAC20,1, this will populate several fields required for the boot to work properly.
10. Save your config.plist
11. Move the saved config.plist into the EFI/OC folder of your EFI partition (of your instal drive)
12. Boot the PC from the newly create EFI partition.
13. Install Sonoma.
14. After the installation you can copy the content of your install drive EFI to your main drive EFI and edit config.plist to remove any arguments "-v keepsyms=1 debug=0x100 alcid=21" as they are no longer needed and your boot time will improve.
15. At first boot, open OpenCore Legacy patcher and run "Post-Instal Root Patch", this will instal additional login item that will enable any natively supported wifi card to work in Sonoma, like BCM94360CS2.

System info

Wifi and Bluetooth

Geekbench 6

 

[miliuco]

@samcrow
Good work!!!