8 Steps to Install macOS Sonoma/Ventura on Unsupported Macs

Apple releases a new major macOS update every year. When a new macOS update becomes available, many people are eager to install it. However, not all Macs are supported for these updates. If you're looking to install a macOS version like Sonoma or Ventura on an unsupported Mac, you might be wondering how to do it.

Don't worry; we're here to help. In this blog post, we will introduce you to a useful tool called OpenCore Legacy Patcher and provide you with a step-by-step guide on how to install macOS Sonoma or Ventura using it.

Which Macs Can Run macOS Sonoma/Ventura?

Macs that support macOS Sonoma:

• iMac (2019 and later)
• iMac Pro (2017)
• MacBook Air (2018 and later)
• MacBook Pro (2018 and later)
• Mac Mini (2018 and later)
• Mac Pro (2019 and later)
• Mac Studio (2022 and later)

Macs that support macOS Ventura:

• MacBook 2017 and later
• MacBook Air 2018 and later
• MacBook Pro 2017 and later
• Mac Mini 2018 and later
• iMac 2017 and later
• iMac Pro 2017
• Mac Pro 2019 and later

Check out this list for specific models. If, unfortunately, your Mac is not on the list of supported models but you still wish to install macOS Sonoma or Ventura on it, you will need to use the OpenCore Legacy Patcher.

Read on to learn more.

What Is OpenCore Legacy Patcher?

OpenCore Legacy Patcher, often abbreviated as OCLP, is an advanced bootloader that injects and patches data in memory rather than on disk. It enables you to install the macOS of your choice, such as macOS Sonoma, Ventura, or Monterey, on older Macs that are no longer officially supported.

Supported Mac and macOS Versions

Basically, any hardware that supports SSE4.1 CPU and 64-bit firmware will work with this patcher. To check if your hardware is compatible, run the command below in Terminal.

system_profiler SPHardwareDataType | grep 'Model Identifier'

Alternatively, you can refer to this article for all supported Mac models.

In terms of supported macOS versions, OpenCore Legacy Patcher currently includes coverage for macOS versions from Big Sur 11.x to Ventura 13.x. Additionally, some other beta versions, like macOS Sonoma beta, may also be compatible.

How to Install macOS Sonoma/Ventura on an Unsupported Mac Using OCLP

Now that you've confirmed that your Mac is supported, let's see how to install macOS Sonoma/Ventura on your Mac using OCLP.

Step #1. Back Up Your Mac

This step is very important because unexpected errors may occur during the upgrade process. So be sure to back up your Mac with Time Machine or iCloud.

If you are backing up your Mac for the first time, we recommend that you use BuhoCleaner to clean your Mac thoroughly first to reduce the number of backup files and backup time. BuhoCleaner is one of the best Mac cleaners that can clean up your Mac in just a few clicks. Download and clean up your Mac now.

Step #2. Prepare a USB Drive

Before downloading the macOS installer, you need to prepare a USB drive. To ensure that the subsequent installer creation and installation process goes smoothly, make sure the following:

• USB drive capacity: at least 16GB.
• Back up the file in the USB drive. (Your drive will be formatted in a later step.)

Step #3. Download the OpenCore-Patcher App

Now, let's download the OpenCore-Patcher app. Make sure to download the latest version.

1. Go to Github.
2. Download the OpenCore-Patcher-GUI.app.zip file.
3. Unzip OpenCore-Patcher-GUI.app.zip, find OpenCore-Patcher, and open it.

Step #4. Create the macOS Sonoma/Ventura Installer

Follow the steps below to create your macOS Ventura installer.

1. Click Create macOS Installer.
2. Click Download macOS Installer, wait for a few seconds, and select the installer you want. (Click Show all available installers to see all supported macOS versions.)

   

3. Wait for the download process to complete. The installer is about 12 GB, so this process may take some time.
4. Enter your username and password to install macOS Ventura.
5. When finished, click Flash Installer.
6. Select the macOS Ventura installer you downloaded.
7. Select your USB drive. （Make sure you have the USB drive plugged into your Mac.)
8. The patcher will start the installer flashing.
9. Wait for the success prompt to appear.

Step #5. Build and Install OpenCore

Now it's time to build the OpenCore configuration on your drive.

1. Click Build and Install OpenCore.
2. After the build is complete, click Install OpenCore.
3. Select the USB drive you inserted, then select the partition where you want to install OpenCore.

   

4. Wait for the installation process to complete.

Step #6. Boot OpenCore and Install macOS

After installing OpenCore, you can boot it according to the prompt.

1. Hold down the Option key while restarting your Mac.

2. When you see the following screen, click the EFI Boot entry with the OpenCore icon.

   

3. Select Install macOS Ventura and your Mac will reboot from your USB drive.

4. When you see the macOS Utilities window, click Install macOS Ventura.

   

5. Click Continue, select the disk on which to install macOS Ventura, and click Continue.

6. When the installation is complete, your Mac will restart.

Step #7. Boot without USB Drive

If you want to boot your Mac without using the USB drive, here's what you need to do:

1. Download and launch OpenCore Patcher on your Mac.
2. Click Settings, uncheck Verbose and Show Boot Picker, and click Return to Main Menu.

   

3. Click Build and Install OpenCore and select your internal drive.
4. Hold down the Option key to restart your Mac, then select the internal EFI.

The next time you start up your Mac, the USB drive is no longer needed.

Step #8. Apply Post-Install Root Patches (Optional)

If your Mac isn't working properly, it means you need to apply a post-install root patch. Here's how:

1. Open the OpenCore-Patch app.
2. Click Post Install Root Patch.
3. If a system patch is available, click Start Root Patching.

   

4. When finished, reboot as root and enter your username and password.
5. When your Mac restarts, you can use and update your Mac freely.

The Bottom Line

After following the steps mentioned above, we hope that you have successfully installed macOS Sonoma or Ventura on your Mac. It's worth noting that upgrading to a new macOS version can potentially cause data loss. Therefore, we strongly advise that you backup your Mac before proceeding with the upgrade.

FAQs

1. Can I Update My Mac After Installing macOS Sonoma/Ventura?

   Yes, you can update and upgrade your macOS as usual, provided that the OpenCore Legacy Patcher supports the new macOS.

2. What To Do if My Mac Isn't Working Properly?

   If your Mac is running slowly, or the spinning wheel keeps appearing, first check if your Mac is being heavily used. If not, check OpenCore Legacy Patcher for system patches. To do so, open OpenCore Legacy Patcher, click Post Install Root Patch > Start Root Patching, and follow the instructions to install the patch and restart your Mac. After restarting, if prompted by OpenCore Legacy Patcher, follow the prompts to repair your Mac. Once completed, your Mac should return to normal.

3. How Can I Avoid Problems with My Mac?

   If you want to avoid problems with your Mac, we recommend that you go to System Settings > General > Software Update and disable the Automatic Updates option.