Once the .dmg is downloaded, you must extract the actual installer application to your Mac's /Applications folder: Double-click InstallMacOSX.dmg . Run the InstallMacOSX.pkg file inside.
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A USB flash drive with at least 8GB (16GB recommended) of space. Once the
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Before we dive into the download process, it is critical to understand why quality matters. A low-quality ISO (often found on torrent sites or file locker blogs) can lead to:
Do not use random "ISO converters" from the internet. Use Terminal (built into every Mac). This creates a bit-perfect, bootable ISO.
Then attach the ISO to the virtual optical drive.