DEV Community

Adrian A.
Adrian A.

Posted on • Edited on

Tutorial installing Mac OS Catalina on AMD Zen Processor

Resources:

I. Part One Install on USB

Or get the Full Open Core here

  1. Go to gibmac OS to download and select -> Clone or download -> Download Zip
  2. Un Zip it and open gibMacOS.bat if you are on Windows or gibMacOS.command if you are on Mac OS Alt Text
  3. Toggle Recovery Only by write R and press ENTER Alt Text
  4. Then Select the latest FULL-INSTALL, at the date when I write this article is 10.15.5 Alt Text
  5. The program will start to download the recovery os, you can check in at gibMacOS-master\macOS Downloads\publicrelease\061-70033 - 10.15.5 macOS Catalina
  6. Now Run the MakeInstall.bat for Windows or BuildmacOSInstallApp.command for Mac Alt Text
  7. Select the drive by pressing its number showed on top of the list, mine its 2 + Add the Letter O at the end like 2O Alt Text
  8. It will start formatting the drive Alt Text
  9. After that It will be necessary to enter the path of the recovery, we go to *gibMacOS-master\macOS Downloads\publicrelease* Alt Text
  10. And Press Enter Alt Text

II. Create Open Core Bootloader

  1. Gibmac-OS will install the open core as default
  2. Download ProperTree, GenSMBIOS, and my created open core bootloader
  3. Extract all the zip files
  4. Open ProperTree.Bat Alt Text
  5. Load the config.plist from the AMD-OSX-OpenCore-master Alt Text
  6. Go to PlatformINFO Alt Text
  7. Open GenSMBIOS Alt Text
  8. Generate SMBIOS by write 3 and press Enter
    Alt Text

  9. We type

- iMacPro1,1: AMD RX Polaris and Vega
- MacPro7,1: AMD RX Polaris, Vega and Navi(Note that MacPro7,1 is also a Catalina exclusive)
- MacPro6,1: AMD R5/R7/R9 and older
- iMac14,2: Nvidia Kepler and newer
  1. Alt Text
- The order is Product | Serial | Board Serial (MLB)
- The Type part gets copied to Generic -> SystemProductName.
- The Serial part gets copied to Generic -> SystemSerialNumber.
- The Board Serial part gets copied to Generic -> MLB.
- The SmUUID part gets copied to Generic -> SystemUUID.
  1. Save the config.plist
  2. Delete everything in the X:\EFI\OC (Where X is your USB hard drive letter)
  3. Paste everything from the AMD-OSX-OpenCore-master
  4. Delete README.md and .gitattributes

II.I Bios Settings
Disable:
-Fast Boot
-Compatibility Support Module (CSM)(Must be off, GPU errors like gIO are common -when this option in enabled)
Enable:
-Above 4G decoding(This must be on, if you can't find the option then add npci=0x2000 to boot-args. Do not have both this option and npci enabled at the same time)
-EHCI/XHCI Hand-off
OS type: Windows 8.1/10 UEFI Mode

If you can boot into the OS Recovery with my boot config (It used with OC 0.5.7) then you don't need to go to step III

III. Create OC Bootloader from Scratch

You can use this tutorial from Dartania https://dortania.github.io/OpenCore-Desktop-Guide/AMD/zen.html :)

Top comments (7)

Collapse
 
denis263 profile image
Denis Mašić

hi can you please help me with the nineth part of this guide?
i don't understand this part
Save the config.plist
Delete everything in the X:\EFI\OC (Where X is your USB hard drive letter)
Paste everything from the AMD-OSX-OpenCore-master
Delete README.md and .gitattributes
thank you

Collapse
 
redmastering profile image
Red Mastering Studio

hi,
I have a problem...when I start MakeInstall.bat, I cannot see my USB drive....
drive is formatted as standard, and win10 can see it as empty...
what should I do??
thanks for help in advance

Collapse
 
evokzh profile image
Adrian A.

Try to format the usb drive in windows as FAT32, and try again in another usb slot
Make sure you run as administrator!

Collapse
 
user_d60c891e32 profile image
user_d60c891e32

Hi Dear Developer.
Please Reply Me.
I’m Search info.
Could you tell me if it is possible to run MacOS on AMD 7 4000 series / 4800h model / Vega 10 GPU?

Which Python version are you using in this guide?

Collapse
 
vidhu1164 profile image
vidhu1164

Hey!
I want to install the OS on an external HDD but makeInstall script does not detect external HDD, Any fix for that?
Thanks!

Collapse
 
user_d60c891e32 profile image
user_d60c891e32

Hi Dear Community. Please send Me info.
What is the Python version on which this guide for AMD Vega is written? Am I to understand that this is how you can run macOS system?

Collapse
 
user_d60c891e32 profile image
user_d60c891e32

Hi Dear Developer.
Please Reply Me Question.