![]() Hopefully this helps you guys it took me forever to get this to work! I ran all of the initial processes using my M2 MacBook Pro 13" so it should work for all of you if you need to create a usb Mac OS disk. So far this is the only way I have been able to get this to work. Step ten select the thumb drive that has High Sierra operating system installed on it and go through the installation process. Step ten close the terminal app, connect the usb stick you made to this Mac, and then restart the Mac while holding the option key. This will set the date and time on this Mac. Step eight go to utilities at the top of the screen and open the terminal app ![]() Step seven make sure the this Mac is not connected to the internet via wifi Step six On the old Mac start the Mac while pressing command option and R The second time the process finally completed. This process takes some time to complete and failed the first time I tried it so try again. DMG file you downloaded earlier and tell it to install it on the thumb drive Step five run the High Sierra patcher program and point it to the. Step four connect a blank thumbdrive to your Mac to install the High Sierra OS to needs to be over 16gigs Step Three on the current Mac you will have to allow the patcher app to install for use through the security settings Step two you will need to download the High Sierra Patcher tool ![]() Step one you will need to download a copy of the high Sierra dmg file. Ok I had this same problem and I finally got High Sierra to install.
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