So far the only way to download the macOS Installer in some automated fashion was using Greg Neagle’s installinstallmacos.py script. (Again I did not have such hardware available for testing.) I would assume that downloading an Installer application for a macOS version that is not supported on the hardware you are running the command on would fail. I was not able to test if 10.13.6 would download the hardware specific build of 10.13.6 for the 2018 MacBook Pro, since I do not have that hardware. % softwareupdate -fetch-full-installer -full-installer-version 10.14.6ĭuring my testing in the Catalina beta version I was able to download 10.15, 10.14.6, 10.14.5, and 10.13.6. The -fetch-full-installer flag has a sub-flag: -full-installer-version which allows you to download a specific version. This is extremely useful for many admin tasks. Will download the latest ‘Install macOS’ application to this Mac’s /Applications folder. The softwareupdate command has gained a new option in Catalina: % softwareupdate -fetch-full-installer Catalina is out! While you are preparing for your upgrade, here’s a nice new feature for MacAdmins: