Question :
May 26, 2019 First you will need to download the restore disk image of El Capitan (10.11.6) which you will need to install onto your hard drive of the 1,1/2.1 Mac Pro. To get the image click here. Now that you have the restore image it needs to be restored to your Mac Pro. There’s a few ways to go about this. How to Perform a Clean Install of OS X El Capitan. OS X El Capitan (OS X 10.11) offers two installation methods. This guide focuses on the 'clean install' method. When you install El Capitan on your current startup drive with the clean install method, you erase everything on the drive. That includes OS X, your user data, and personal files.
No Packages Eligible For Install
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 ?
Answer :
Installing newer versions of OSX on slightly older Macs that do not meet the official system requirements can be done using MacPostFactor (MCPF).
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 :
How To Install El Capitan On Unsupported Mac
…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 !
😉