You can also directly download the missing files from Apple's server : temp_dir=~/High-SierraĬurl -R -remote-name-all $url/ If you are afraid that it will restart by itself before you had a chance to quit the installer, try the manual method below. You can do that with : sudo cp -Rv "/macOS Install Data" "/Applications/Install macOS High Sierra.app/Contents/SharedSupport" Start the installer, which will download the missing filesĬopy (or move) the downloaded files from /macOS Install Data to a new SharedSupport folder inside /Applications/Install macOS High Sierra.app/Contents/.My specifications: sh-3.2# system_profiler SPSoftwareDataType I can't figure out how to install the full High Sierra installer I think I have the "stub" in my Applications folder as the High Sierra. These answers didn't help solve my issue. The USB I'm using is 64Gb and freshly formatted using Disk Utilities. "Move the directory /macOS Install Data (which is downloaded after you run through the installation once) to be Install macOS High Sierra.app/Contents/SharedSupport" The High Sierra directory is present, I'm able to press tab on my keyboard to auto-complete the paths.Īfter Googling the error, I found this Reddit answer, but I'm not sure what he's talking about or why it should be done, so I haven't tried it. Applications/Install macOS High Sierra.app does not appear to be a valid OS installer application. I downloaded High Sierra from the App Store, then tried creating a USB installer using Terminal but I get the following error: # sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/My-USB-Name/ -applicationpath /Applications/Install\ macOS\ High\ Sierra.app
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