A file named InstallMacOSX.dmg will download to your Mac. If you still need OS X El Capitan, use this link: Download OS X El Capitan. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too.
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Mojave: How to upgrade to macOS Mojave – Get macOS Mojave (App Store link)Īs of recently ( October 2019) users have reported a certificate issue that may require the system datetime to be backdated via terminal in the installer. For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it. High Sierra: How to upgrade to macOS High Sierra – Get macOS High Sierra (App Store link)
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Sierra: How to upgrade to macOS Sierra – Download macOS Sierra (direct d/l). All Mac users who wish to download OS X El Capitan must do so from the Mac App Store, where it is available as a free download from Apple: Get the final version of OS X El Capitan from the App store here The El Capitan installer is about 6GB in size. The app's ressources can be used to create a new installer thumb drive with the well known command: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app The installer package installs the "Install OS X El Capitan.app" in the Applications folder. Simply download a new OS X El Capitan install.dmg (with a valid cert chain this time), open the dmg and open the InstallOS.pkg. You probably used an old macOS installer app to create your USB bootable disk.Ī lot of macOS installer apps downloaded before Oct 2019/Nov 2019 contain an outdated certification chain and thus are invalid.
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