The Mac rebooted, and it seemed that everything was going well, but it was not. The following fixes it for me.Īfter downloading a copy of macOS High Sierra from the Mac App Store, I started installing the update. #fix 'Waiting for other installations to complete.' On OSX 10.6 10.7 # sometimes a failed installation leaves us unable to # perform an installation. Go to disk Utility and run the First Aid for Macintosh HD. Restart your mac in to Recovery Mode by holding down the Command (⌘) and R keys during startup. To complete a clean installation of macOS Sierra 10.13/10.13.4 on Mac, you may need to do some pre-installation preparation: Step 1. Clean installation of macOS Sierra 10.13/10.13.4 to fix macOS fails to install issue. If you cannot install macOS 10.13/10.13.4 in Safe Mode, try a clean installation of the new update. Macos Waiting For Other Installations To Complete Version.Macos Waiting For Other Installations To Complete Tasks.
But then I was facing multiple issues trying to update macOS from Mountain Lion to High Sierra via the Mac App Store. I successfully installed the macOS Mountain Lion (when using the NetBoot it automatically selects the version of macOS with which the iMac was shipped with). I thought that it would be easy to do but I was mistaken. Recently my sister asked me to reinstall the macOS High Sierra on her iMac because it stopped working correctly.