In this video, I go over the process of installing macOS 10.15 Catalina on an unsupported Mac. This entire process involves the use of my 'macOS Catalina Pat. The macOS Catalina Patcher tool will definitely work fine to install macOS on the above unsupported Mac. This problem is occurring for thousands and maybe a million Mac users, so there’s a should be a solution. MacOS Catalina Patcher. The easy way to run macOS Catalina on your Unsupported Mac. Download Latest Version View Changelog. Using the Patch Updater tool, it is possible to re-install these patches with one click. To do so, open the Patch Updater application, and select 'View Installed Updates', or use the 'View Show Installed Updates' menu in the Menu Bar. To re-install a patch, simply right-click on it in the list and select 'Re-install'. That patcher (or possibly any that patch Catalina) doesn't work for you. So find a working method for your system or give up the quest for running unsupported macOS on your Mac. Sorry but seems like all that is left.
MacOS Catalina won't work on older Macs, but thanks to dosdude1's patcher, it can! Dosdude1 himself makes a cameo in this episode.
APFS BootROM Support: If you have a machine that supports High Sierra natively, you MUST ensure you have the latest version of the system's BootROM installed. If you have NOT previously installed High Sierra, you can download and install this package (if running OS X 10.10 Yosemite or later) to install the latest BootROM version (you MUST reboot after installing the package to apply the firmware update). When installing, ensure your system is plugged in to power, or the update will not be installed.
- Early-2008 or newer Mac Pro, iMac, or MacBook Pro
- Late-2008 or newer MacBook Air or Aluminum Unibody MacBook
- Early-2009 or newer Mac Mini or white MacBook
- Early-2008 or newer Xserve
(Friendly Reminder: Ensure that the tool successfully verifies the app.)
(Note: Only perform steps 5 and 6 if you intend to do a clean install. Otherwise, you can simply skip these steps and install to your volume containg a previous version of OS X, and it'll do an in-place upgrade.)
(Important Note: Using APFS is REQUIRED in Catalina in order to receive system updates via the normal Software Update method. If you choose to continue using macOS Extended (Journaled) as your filesystem type, you will NOT receive System Updates via System Preferences.)