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macOS 12 Monterey on Unsupported Macs Thread

 2 years ago
source link: https://forums.macrumors.com/threads/macos-12-monterey-on-unsupported-macs-thread.2299557/
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macOS 12 Monterey on Unsupported Macs Thread

khronokernel

macrumors 6502

Original poster

This thread will be dedicated to the discussion of running macOS 12.0 on unsupported Macs



At the time of writing, WWDC has wrapped up and Developer Seeds have been sent out. We're eagerly awaiting for all our community developers and enthusiasts to test out the new version of macOS

We will be expanding this thread with much more information as the day goes by including known issues as well as patcher support

macOS Monterey Compatibility


Installing macOS Monterey on an unsupported Mac
Q: How do I determine what Mac model I have?
A:
To determine your Mac's SMBIOS model identifier, simply run the below command in Terminal:
Code:
system_profiler SPHardwareDataType | grep 'Model Identifier'
Q: How do I prepare my Mac?
A:
Install the latest firmware release you can get for your Mac. All system pre 2012 do not receive any new updates. Install the lastest High Sierra or El Capitan (pre 2009) version to force your old Mac to get the firmware update.
All Macs 2012+ may still receive updates with Catalina until Summer 2022 and Big Sur until 2023. The most easy way to get this still upcoming updates is having a small Catalina/Big Sur installation on a separate APFS container on the internal disk and update this installation on a regular basis.

Q: How do I download macOS Monterey?
A:
The easiest way is to use tools such as gibMacOS which can download macOS Monterey InstallAssistant packages directly from Apple.


Q: How to create a USB installer after downloading the InstallAssistant package?
A:
Install the package, it creates an app named Install macOS Monterey in your applications folder. Create the USB installer following this official Apple guide.

Q: How can I use this installer on my unsupported Mac?
A:
Before hitting the download button of the patcher tool (see below) please check OpenCore legacy Patcher's documentation. It contains a support statement about unsupported Macs running Monterey, too.

Q: Where/how can I download a patcher tool?
A:
Currently there is only one patcher that will soon be supporting macOS 12, Monterey being OpenCore Legacy Patcher. As time goes on, we expect many more developers to join in with their own implementations of the patching process:
  1. OpenCore Legacy Patcher by @khronokernel and @dhinakg is a completely different approach compared to older patcher methods based on OpenCore. This is currently the only option offering system updates via Apple software update like all supported Macs as well as Intel HD4000 iGPU and NVIDIA Kepler acceleration. While the preparation uses a simple GUI the Monterey installation and updating happens in the same way as on supported systems via System Preferences.
    • Supports macOS 10.9, Mavericks and later to run.
      • Supports macOS 10.7, Lion and later if Python3 is installed manually.
    • For easy troubleshooting and discussion with developers, we recommend joining the OpenCore Patcher Paradise Discord.
Q: How can I enable acceleration on my newly unsupported metal GPU?
A:
Currently one can regain acceleration for both the Intel's HD4000 iGPUs and the NVIDIA Kepler dGPU via OpenCore Legacy Patcher. For users who wish to install the HD4000/Kepler acceleration patches on non-OpenCore Legacy Patcher machines see here: How to Root Patch with non-OpenCore Legacy Patcher Macs/Hackintoshes

Q: When can we expect OpenGL/non-Metal GPU Acceleration?
A:
Starting with OCLP version 0.2.5 legacy OpenGL/non-Metal acceleration for Monterey has been implemented.

Please understand no one can predict when there will be patch sets ready or if current glitches can or will ever be resolved. Remember that it took over 300 days from Big Sur's unveiling to achieve public acceleration for non-Metal GPUs. And with TeraScale 2 acceleration, this took almost 3 years to achieve public acceleration. So be patient as developers are hard at work, however expect no error free support in Monterey. Additionally most applications rely more and more on Metal GPU features. Such apps may cause just a feature loss or will completely fail on non-Metal system. This will never change and the only way out is changing the GPU (iMac Late 2009-Mid 2011 and MacPro systems) with a Metal compatible one or buying a new Mac.

Please remember it is highly suggested that you have a backup in place before installing new system software on your main devices, overwriting any stable releases.

Apple and all patch developers are not responsible for any potential damage or data loss caused by using pre-release software or unofficial support patches. Please use at your own risk.
Last edited: Wednesday at 1:46 PM

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