Question :
I did this by using a supported Mac to install Sierra. Nothing odd here. Then, I downloaded @parrotgeek1 's ZIP (attached to my post) and ran it on the drive with Sierra installed on it. You should just be able to plug the drive into an unsupported Mac and use Option+boot or Startup Disk to boot from it. Sep 18, 2021 Mac Os X Mojave Dmg Install macOS Mojave on unsupported Mac. Before going to upgrade there are two important points that you should know about that, the first one checks your Wifi compatibility, because some of Mac have Wifi which is unsupported in the macOS Mojave.
I read somewhere that it is possible to install the latest version of OSX 10.10 Yosemite on my Mac, even though the official installer refuses to install.
Can you give me any directions ?
Install Os X 10.12 On Unsupported Macbook Pro
Answer :
Installing newer versions of OSX on slightly older Macs that do not meet the official system requirements can be done using MacPostFactor (MCPF).
Upgrade Unsupported Mac
MacPostFactor also supports installing OSX versions up to OSX 10.10 Yosemite on older Macs. And a new version that supports installing OSX 10.11 El_Capitan is in the works.
For more info (and downloads), go to the info page on MacRumors.com :
or see the (less readable) official page of the MacPostFactor team :
…in short :
!!! THIS IS FOR (RATHER) EXPERIENCED MAC-USERS ONLY, AND SHOULD NOT BE DONE ON YOUR ‘ONE AND ONLY’ MAC !!!
!! REMEMBER : DO FOLLOW THE COMPLETE INSTRUCTIONS THAT CAN BE FOUND HERE : MacPost Factor info page on MacRumors.com
…that should be it !
enjoy !
😉