instal the new for mac DVD Drive Repair 11.2.3.2920

At least you can boot and get Sierra installed to an otherwise unbootable drive (or reinstalled over an earlier installation nondestructively). As a workaround, do an actual installation to your flash drive, then just copy the new installer to that drive's Applications folder. The createinstallmedia command will fail with the new Sierra installer. To learn how to perform a clean installation of macOS using the bootable USB drive method, click one of the following links: macOS Catalina, macOS Mojave, macOS Sierra. You can find the latest official download links below for the last six versions of Apple's Mac operating system, all of which contain a new certificate that has not expired: Doing so will also ensure that you have all of the macOS updates that have been released since you made the original installer, meaning you won't have to update macOS immediately after the initial installation is complete. To fix the damaged installer, you should just download the installer again.

If you tried to use a macOS installer in the last few days or weeks, you may have been met with an error message saying something like ' This copy of the Install macOS Mojave.app application is damaged, and can’t be used to install macOS.'Īs Apple explains in a newly published support document, the likely reason for the 'damaged' error message is an expired certificate. If you tried to run your installer recently and unexpectedly received an error that it is damaged and can't be used, then don't worry – keep reading for a simple and straightforward way to fix it. Creating a macOS installer on a bootable USB drive provides a convenient way of installing a fresh copy of macOS on multiple Macs, and also allows you to perform a clean installation quickly and easily.

Instal the new for mac DVD Drive Repair 11.2.3.2920