Thanks everyone for any help you can provide. Open the 'macOS High Sierra Patcher' tool, and browse for your copy of the macOS High Sierra Installer App.
Insert your desired USB drive, open Disk Utility, and format it as OS X Extended (Journaled). If this doesn't belong here, feel free to move it, there were so many macOS options I couldn't figure out where this would go. High Sierra detects it as just a standard mouse, preventing you from changing some trackpad-oriented settings. I've created the patched installer using a USB drive, and I've confirmed I can boot into it, but I haven't pulled the trigger yet. If Catalina is a bust, is it as simple as connecting my backup of HighSierra and restoring the internal drive using that image? I don't want to get stuck in Catalina if it doesn't work. macOS Extractor, OS X Patcher, and MacPostFactor are apps that guide you through patching and installing OS X El Capitan (10.11), Yosemite (10.10), Mavericks (10.9), or Mountain Lion (10.8) on your older Mac. If I want to revert back to High Sierra, can I do so, and how? I have a duplicate of my internal hard drive already made with SuperDuper and it can boot the system.
I discovered DosDude's Catalina Patcher, and I have a question. Had one of these when they first came out, and now here I am again. I recently picked up a Mid 2010 Unibody MacBook.
My first Mac was the Mid 2005 iBook G4 1.42Ghz and I've been in and out of the fold since. Step 3: Erase and Reformat the Macs Boot Drive. Step 2: Create a Bootable macOS High Sierra Installer. As noted, were going to completely erase everything on the Mac. I used to have an account on here *ages* ago, like over ten years ago. How to Perform a Clean Install of macOS High Sierra Step 1: Backup Your Mac.
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