Home > Mac administration, Mac OS X, macOS > Apple moving older macOS installers from the Mac App Store

Apple moving older macOS installers from the Mac App Store

Apple has started making the following macOS installers available outside of the Mac App Store (MAS).

For each listed OS installer, Apple has direct download links via their relevant KBase article for InstallOS.dmg or InstallMacOSX.dmg disk images.

Screen Shot 2019 11 07 at 11 47 22 AM

Screen Shot 2019 11 07 at 11 39 06 AM

In turn, these disk images contain installers named InstallOS.pkg or InstallMacOSX.pkg.

Screen Shot 2019 11 07 at 11 47 31 AM

Screen Shot 2019 11 07 at 11 39 17 AM

These installers do not themselves install the relevant version of macOS or OS X. Instead, they install the Install.app for that macOS or OS X version into the /Applications directory.

Screen Shot 2019 11 07 at 11 39 45 AM

Screen Shot 2019 11 07 at 11 40 12 AM

Screen Shot 2019 11 07 at 11 40 46 AM

Screen Shot 2019 11 07 at 11 41 25 AM

Once the relevant Install macOS or OS X app is available, it can be used to install that OS.

The installers for the following macOS versions are still available via the MAS.

They can also be downloaded on macOS Catalina using the softwareupdate tool.

  1. thedaifuku
    November 10, 2019 at 1:25 pm

    Hello Mr Trouton, I have no success at making createinstallmedia from this Sierra version (after certificate apocalypse). Did you run into this problem as well? All other re-released version work fine for me. Thank you

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