While the process of repairing the “This copy of the Install macOS Mojave.app application is damaged, and can’t be used to install macOS” isn’t fun, thankfully, it’s easy. It’ll make your installation process a lot faster if you are recovering from a dead hard drive, since you won’t need to install macOS and then apply patches right afterward. How to create a bootable macOS High Sierra USB driveĪnother benefit to making a new boot drive is that you’ll get all of the various macOS updates that have been released since you made your last one.How to create a macOS Mojave USB installer the easy way.If you are new to making macOS boot drives, we’ve got articles to help. You may need to reboot the Mac after you have downloaded the new (and valid certificate) installer application, particularly if you had already launched a version that showed the application damaged error message. Fortunately, there is a fairly simple solution to the “damaged” installer problem.īelow are the download links for the recent versions of macOS. The direct download link from Apple is here: Download InstallAssistant.pkg for MacOS Sonoma beta 2 directly from. This approach will download the full MacOS Sonoma beta installer through a PKG file that extracts the complete installer into your /Applications folder. The cause of this error is an expired certificate, and because the certificate is expired, the “Install macOS” app for Mojave, Sierra, and High Sierra will not run. Downloading Full MacOS Sonoma Beta Installer via Apple. As first reported by, a fix is quite simple. If you’re getting the above error message when you go to install macOS, you’ll likely experience some panic about what to do. If you are getting an error similar to “This copy of the Install macOS Mojave.app application is damaged, and can’t be used to install macOS”, read on to learn how to fix it. Once the download has completed, open Finder, go to Downloads, and double-click Microsoft Office installer.pkg file (the name might vary slightly). If you have a drive created for Mojave, Sierra, and High Sierra, know that a certificate has expired. I am a big fan of using a tool like DiskMaker X to create them to keep around if I need to wipe a drive and reinstall macOS quickly. this will install the package that you cached, making it visible to the user, with a /Applications/Install macOS Mojave.app being put in there as expected.Ģ) policy to install cached package (puts Install macOS Mojave.app in the Applications folder), and run a script after that calls /Applications/Install macOS Mojave.Longtime macOS users will know that even though the Mac has a built-in recovery partition, it’s always useful to have a dedicated USB drive with a macOS installer. pkg in Waiting Room)Ģ) policy to install cached package (puts Install macOS Mojave.app in the Applications folder), and run a script after that calls /Applications/Install macOS Mojave.app/Contents/Resources/startosinstall -agreetolicenseįor in place if you want it to be installed in the applications folder, make a new policy, select the mojave package, and select "install cached" from the package options. when i did the package, it wasġ) policy to cache package (places the. So for mojave, i have done it a few ways. with the OS, you need to cache the package, install the package, then run an additional script to actually run the application to do the installation. then i create a policy to install the cached package, and it installs. normally i cache a package to have it ready for a planned installation policy being implemented. I think your confusion may be due to how controlling OS install differs from a normal package. Sierra 10.12 El Capitan 10.11 Yosemite 10. Follow the onscreen instructions to install macOS. After downloading to your Applications folder, the installer opens automatically. In the App Store, click the Get button to begin downloading the macOS installer. this will install the package that you cached, making it visible to the user, with a /Applications/Install macOS Mojave.app being put in there as expected. High Sierra 10.13 Click the link to open the App Store page for that macOS. If you want it to be installed in the applications folder, make a new policy, select the mojave package, and select "install cached" from the package options.
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