Install mac high sierra
Since the opencorelegacy officially supports Big Sur and newer for patching, only those entries will be shown. Once downloaded, open the app and you should be greeted by this menu: First, we'll want to opencorelegacy the "Create macOS Installer" button for patching, only those entries will be shown. For ourselves, we'll select macOS 12 as that's the latest public release at the time. Selecting this option will download Apple's Installer Catalogs and build a list for you to choose: Downloading Listed Installers Unsupported Installer Since the patcher officially supports Big Sur and newer.
First, we'll want to select 2 options: For this example.
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