Thursday, July 20, 2017

MacOS Sierra - A Bootable USB Installer

The final version of MacOS Sierra 10.12.6 was released today. To facilitate a clean installation, I had to update the installer on my flash drive. This requires a copy of the installer to be downloaded from the App Store, and to execute the following command in a terminal:
sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app --nointeraction &&say Done
Note that as the command points to the flash drive at /Volumes/Untitled, it needs to be labelled as Untitled.

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