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1. CHOOSE STARUP DISK FOR MAC OS INSTALL
2. CHOOSE STARUP DISK FOR MAC OS DRIVER
3. CHOOSE STARUP DISK FOR MAC OS FULL
4. CHOOSE STARUP DISK FOR MAC OS SOFTWARE

In the Hardware page for the VM, add a second DVD drive at IDE0, set it to use your Catalina-installer.iso.ĭon’t try to start the VM just yet. In the Options page for the VM, ensure that “use tablet for pointer” is set to “Yes”.

CHOOSE STARUP DISK FOR MAC OS DRIVER

Disable ballooning because there is no balloon driver available for macOS.

Select the OpenCore ISO you uploaded and set OS type to “Other”.Make a note of it.Įvery Mac uses the same OSK, so don’t be surprised that it doesn’t look like a random string! Create the VMįrom the Proxmox web UI, create a new virtual machine as shown below. It’ll print out the 64 character OSK for you. Gcc -o smc_read smc_read.c -framework IOKit

In a command prompt, change into the same directory as that file and run: xcode-select -install # If you don't already have gcc

Save the first block of C code from this page as smc_read.c. You can get around this by reading an authentication key out of your real Mac hardware (the OSK key). MacOS checks that it is running on real Mac hardware, and refuses to boot on third-party hardware. iso file extension, this is actually a hard disk image. This has several improvements over my old Clover-based tutorial, like fixes to screen resolution problems, better CPU feature support, and better FileVault compatibility, and is recommended for all future builds.ĭownload the latest release from my repository, unpack it, and upload it to Proxmox’s ISO store at /var/lib/vz/template/iso. We’ll be using OpenCore as a bootloader for Catalina. Building the offline installer requires you to have a Mac, here are the instructions. If you won’t have an Internet connection available to Catalina during installation, or your network can’t provide an IP address by DHCP you’ll need to build an offline installer instead. Upload the “ISO” to your Proxmox server’s ISO store (typically /var/lib/vz/template/iso). The result is actually a raw disk image, not a true ISO, but Proxmox has better tools for picking and re-using ISO images than disk images. Qemu-img convert BaseSystem.dmg -O raw Catalina-installer.iso # Or use qemu-img from the qemu-utils package to do it instead:

CHOOSE STARUP DISK FOR MAC OS INSTALL

Or like so if you’re building this on Linux: # Install the dmg2img package and.ĭmg2img BaseSystem.dmg Catalina-installer.iso Convert that dmg into an “iso” like so if you’re building this on macOS: hdiutil convert BaseSystem.dmg -format UDRW -o Catalina-installer.iso This results in a ~500MB “BaseSystem.dmg” file in the current directory.

CHOOSE STARUP DISK FOR MAC OS SOFTWARE

Download and run fetch-macOS.py in a terminal to download the Catalina recovery image from the Apple software distribution server (this can be run on Linux, Proxmox, or on a Mac): The easiest installer to build is a recovery image, which will download Catalina during installation. Modern AMD CPUs also support SSE 4.2 and will work with this guide. Older CPUs will cause the finder to repeatedly crash after installation completes (with an Illegal Instruction exception in the graphics code). Your Proxmox host computer’s CPU must support SSE 4.2, so for Intel your CPU must be at least as new as Nehalem, which was the first CPU generation to bear the “Core” i5/i7 branding. You also need a real Mac available in order to fetch the OSK key. I’ll assume you already have Proxmox 6.1 or 6.2 installed. If you’d like to use Clover instead, use my older tutorial, but OpenCore works better! Requirements

CHOOSE STARUP DISK FOR MAC OS FULL

You can get the full sourcecode on my GitHub here. This tutorial for installing macOS Catalina using OpenCore has been adapted for Proxmox from Kholia’s OSX-KVM project and Leoyzen’s OpenCore configuration for KVM. MacOS 11 Big Sur has now been released! If you’d like that version instead then please use my new Big Sur installation guide!