How to Install macOS Sonoma on Unsupported Macs

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Install MacOS

After you enter the boot disk selection, select EFI Boot disk (it is the lask USB you created).
As you can see, now your Mac does recognize the MacOS Sonoma Installer.
Now select the MacOS Sonoma installer and follow the usual MacOS install procedure.
In our example we are installing MacOS Monterey, but it works with Sonoma, Ventura and Big Sur too.

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