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If the App Store link fails or doesn't show the full installer, you can force the download using this command: (Applications > Utilities). Type or paste the following:

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To compute the SHA‑256 hash of your downloaded DMG file, use this Terminal command: If the App Store link fails or doesn't

For those who need to create a bootable installer: download catalina 10157 full installer high quality

If the above command fails (Apple occasionally removes old indexes), use this direct curl command to grab the high-quality PKG:

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