Then, after the install completes, set the date back to automatic.
Apple still hosts the High Sierra installer, though it is hidden from standard App Store searches.
Once the process completes, unmount the image: hdiutil detach /Volumes/install_build
At least 14.3 GB of available storage space to execute the upgrade. download macos high sierra 10.13.6 dmg mac
This happens if you try to open the App Store link on a Mac that is too new (e.g., an M1 or M2 Mac).
When installing High Sierra on solid-state drives (SSDs), the installer will automatically transition your file system structure from HFS+ over to . Ensure you have backed up all vital information using Time Machine prior to starting the installation, as changing the underlying partition table structure can risk data loss if interrupted.
Use Apple’s createinstallmedia tool to inject the installer into your mounted sparse image: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build Then, after the install completes, set the date
Open your web browser and navigate to the official Apple Support page for older macOS versions.
Downloading requires specific methods depending on your current hardware, as Apple has officially moved this version to its legacy support category. Official Download Methods
A separate 1.31 GB update is available specifically for MacBook Pro models from 2018 that feature the Touch Bar: This happens if you try to open the
: Use this direct link to macOS High Sierra in Safari to open its page in the App Store.
Select the volume and press Enter to begin installation. Safety Warning Regarding Third-Party Links