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Ursprünglicher Beitrag von: Dan ,


First, find a trash can and throw away your cloning App! They often make more of a mess than helpful!

Did you use macOS Disk Utility to format your drive? Also what is your version of macOS you are using?

I do recommend you setup a USB thumb drive OS installer before moving forward it, just in case!

* [https://www.macworld.com/article/3092900/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
* [https://www.macworld.com/article/3284378/how-to-create-a-bootable-macos-mojave-installer-drive.html|How to create a bootable macOS Mojave installer drive]

You are likely to hit a problem with your OS installer image files as Apple messed up the certificates! Here’s more on what happened [https://appleinsider.com/articles/19/10/24/if-youve-got-an-old-macos-install-image-it-will-probably-stop-working-today|If you've got an old macOS install image, it will probably stop working today]

Here’s the updated installers:

* [https://support.apple.com/en-us/HT208202|How to upgrade to macOS Sierra]
* [https://support.apple.com/en-us/HT210190|How to upgrade to macOS Mojave]

Jump down to Step 4 for the direct file links.

Instead of using your cloning app use Apples Migration Assistant while it will take a bit longer it validates each file and it won’t over write your fresh OS install. Lastly, the recovery partition and file system structure will be properly installed.

* [https://www.imore.com/how-to-transfer-old-mac-data-new-mac|How to transfer your old Mac's data to your new Mac]