High Sierra: How to upgrade to macOS High Sierra – Get macOS High Sierra (App Store link) 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. Sierra: How to upgrade to macOS Sierra – Download macOS Sierra (direct d/l). is the twelfth major of the Mac operating system. In here just follow my steps to create a bootable USB installer for your Mac. As you know that Mac OS EL Capitan is the newest version among Mac. 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 Downloaded from .txt (0.02 kB) Freeware Sys.html (444.0 kB) FreewareSys.png (323.0 kB) Freewaresys Download Free Software.html (218.9 kB) Mac OS X. Therefore, you can create bootable USB for your Mac using Transmac on windows 10/7/8/8.1 here you will learn the easiest method of creating bootable USB. 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app to create your USB bootable disk.Ī lot of macOS installer apps downloaded before Oct 2019/Nov 2019 contain an outdated certification chain and thus are invalid.
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