So, it was the end of the line for my 27″ 2011 iMac. After 7 years of service, the new OS (MacOS 10.14 “Mojave”) wasn’t going to be able to be installed on the old faithful. There’s some tech reasons for that – Apple moved to minimum standard for graphics cards for their system (they have to support Metal). While there’s external GPU’s for my iMac, I haven’t seen one that supports Mojave. And, even if it did, I probably can’t afford it.
- Install Mojave On Unsupported Mac Mini
- Install Mojave On Unsupported Macs
- Install Mojave On Unsupported Imac
And I certainly can’t afford a new Mac at the moment.
The is a bit of an issue, since I’ve got to be able to compile a project for release very soon. Well… shit.
Fortunately, there’s always someone somewhere that wants to get just a little more life out of their machine – in this case, the Mojave Patcher will do some trickery to load MacOS on a machine that’s not supposed to have it. Nice. Though, reading the notes, it mentions machines with a Radeon 5xxx or 6xxx series GPU had weird colors. Well, how bad could it be.
- The Mojave 10.14.1 update does NOT install properly on unsupported machines, and could result in an unbootable OS. If you want to install the 10.14.1 update (and are not currently running 10.14.1), perform the following steps:. Download the latest version of Mojave Patcher. Download the installer using the Tools menu of Mojave Patcher.
- Install macOS Mojave After setting up BIOS, the next step is to install macOS Mojave. Follow the steps below for the installation. Turn on your PC 2. Press F12 to enter boot menu. The boot menu key may not be same for all. If you're having a ASUS Motherboard, use F8, use F11 for MSI and AsRock Motherboards).
- Install macOS Catalina on Unsupported Mac. Now, follow the steps shown below carefully to load the installer, erase your local disk, and install macOS Catalina from USB drive you created in above step. Step 1: Boot Mac from USB Installer. To do this, insert the installer and hold down the Option key as you restart your Mac.
The answer is very. But, there’s a simple fix (for me, at least). Typically, I run dual screen. When starting the process, I turned off the second screen and went about installing, getting everything working, and back to developing software. It would be unusable with the “weird colors” if I wanted to do any graphics work.
Mac Mini Mid-2009 to Late-2009 (unsupported WiFi modules, GUI glitches) Mac Mini Mid-2010 (GUI glitches) Mac Mini Mid-2011 (all models except for HD 3000 experience GUI glitches) MacPro 3,1 Early-2008; MacBook Late-2008; MacBook Early-2009 to Mid-2010 (GUI glitches) Download macOS Mojave Patcher tool. DMG file (official link) How to install.
I turned the second screen back on, which is attached via Thunderbolt to HDMI. Boom – suddenly all of my colors were correct again!
That didn’t solve the other problems, though – hardware acceleration is disabled, which means my fairly snappy iMac runs like a dog. For doing something like writing this blog, it’s fine (I’m using Chrome, though results appear the same in Safari.) I would have said YouTube would be worthless, but actually it seems to run YouTube videos just fine. Same goes for NetFlix, though there’s some issues with the animations for launching a show.
I’m dreading seeing what performance is like running the Android or iOS emulators (if they launch at all.) . I’ll find out what the damage is there tomorrow.
So is Mojave usable on my old machine? Yes. Is the machine still usable? Yeeeaaahhhh… for the most part. I think it’s gonna take me a bit to get used to the laggy interface. Since I have to compile stuff and sign it for the App Stores, I HAVE to run Mojave, otherwise I wouldn’t have bothered with the upgrade. Should you bother with it? Up to you if you’re on an old, unsupported Mac. (Obviously if you’re on a supported Mac, by all means upgrade)
Run into the color issue? Try plugging in a second monitor and see if that does the trick. Honestly, I have no idea why it worked, but it does. 🙂
Two updates to this (and probably some more to come later):
First, scrolling in Safari was laggy and choppy. Dragging windows around was choppy. Quick fix – lower the resolution from the maximum (2560 x 1440) to one step top (1920 x 1080) pretty much eliminated it. Not butter smooth, but a huge improvement on all of them. It’s much more usable.
Now for the “wow, that gets weird” part: the “weird colors” issue reappeared on my main monitor, but the secondary display has the right colors. Reverting back to the previous resolution doesn’t fix it. Definitely a WTF item. 🙂
Catalina (10.15) is the latest stable release of Apple's macOS. You will see some of the recent apps can only work on this version. And you have to upgrade macOS accordingly. However, only a small portion of Mac models are eligible for direct upgrade offered by Apple. What 's to do if you want to use Catalina on an unsupported Mac? This tutorial will show you how to install macOS Catalina on an unsupported Mac model.
1. Why macOS Catalina?
Install Mojave On Unsupported Mac Mini
macOS Catalina is the last iteration of the macOS series, after which Apple has now moved to macOS 11 Big Sur. Not all Mac users will install Big Sur so soon after its release because they'll be waiting for all the major bugs to be fixed in an 11.x update. But there's also another reason: Big Sur is only meant for certain models of MacBooks and iMacs.
And some of the apps can not work on an old version of macOS, such as High Serria or Serria. You will receive the following messages if you try to run an app that only supports Catalina and later versions. You have to upgrade macOS to Catalina in such a case if the app is very important for you.
The same is true of Catalina as well, but Catalina is a more mature version and brings a lot of features to the table, such as the improved Siri, customizable smart lists, the new AI-based Photos app, better Notes search, refreshed Safari, and so on. Probably the most important change is the deprecation of iTunes into three separate entities for Music, TV, and Podcasts. That's why a large portion of users still prefer Catalina even if their device is compatible with Big Sur.
2. Official Support List by Catalina
Unfortunately, as in the case of Big Sur, macOS Catalina also does not support very old models of Apple devices. Here is the official support list. If your device is from an older year, you cannot upgrade to macOS Catalina the usual way.
- MacBook (Early 2015 or newer)
- MacBook Air (Mid 2012 or newer)
- MacBook Pro (Mid 2012 or newer)
- Mac mini (Late 2012 or newer)
- iMac (Late 2012 or newer)
- iMac Pro (2017)
In addition, your video card will need to be pre-metal, and it works with specific series of GeForce, Radeon, and Intel graphics cards.
3. Unofficial Support List by Catalina
Thankfully, there's a way to patch macOS Catalina on your older system, which extends the list of supported devices. However, you will need to download macOS Catalina dmg file, burn it to a USB drive, and then install Catalina on your Mac by booting from the USB installer. The process is shown below and it works with the following unsupported Mac models.
- MacBook Pro Early 2008 or newer
- MacBook Air Late 2008 or newer
- Mac Mini Early 2009 or newer
- MacBook Early 2009 or newer
- iMac Early 2008 or newer
4. How to Create a macOS Catalina Bootable USB
UUByte DMG Editor is a fantastic disk image management utility for Apple's DMG files. Not only can you burn a DMG to a range of media storage devices but you can also extract files without having to mount the DMG as a virtual drive. Besides, it is a cross-platform application that works well on both Windows and macOS. This means you can create a bootable Catalina USB installer on a Windows PC.
Although it is meant for experienced users, the user interface, navigation, and feature layout have been simplified so even beginners can jump right in and get comfortable with the software. Here's the process in the form of steps you can duplicate on your Mac.
Warning: Please back up your Mac first before taking into real actions. This might brick your EFI chip with multiple EEPROM definitions.
Step 1: Download DMG file of macOS Catalina from the following sources. These site offer the latest version of the macOS Catalina, please download a copy to your Mac.
- Download Link 1: https://themacgo.com/macdownload/
- Download link 2: https://drive.google.com/drive/folders/NW4r628CM
Step 2: Insert a USB drive and install UUByte DMG Editor application on a Mac or PC.
Step 3: Launch UUByte DMG Editor and select the 'Burn' option on the main page.
Step 4: On the inside page, hit the 'Browse' button and select the DMG file from your local storage. Check if your USB drive is displayed in the field below the DMG image field. If not, click on 'Change' button to select the correct drive.
Install Mojave On Unsupported Macs
Step 5: All you need to do is name your drive and hit 'Burn' button. You will see the progress as the USB installer is created.
When you see the success message, close UUByte DMG Editor and eject the drive. It is now ready for you to use in the macOS Catalina installation process described in the next section.
5. Install macOS Catalina on Unsupported Mac
Now, follow the steps shown below carefully to load the installer, erase your local disk, and install macOS Catalina from USB drive you created in above step.
Step 1: Boot Mac from USB Installer
To do this, insert the installer and hold down the Option key as you restart your Mac. In the Startup Manager, choose the drive name that you used in the installer creation process. You won't be able to use the mouse here so use the arrow key to select your drive and hit Enter.
Step 2: Wait Catalina Installer to Be Loaded
This could take a few minutes so be patient. Don't worry if the screen goes blank or if the progress bar looks like it's frozen. Don't do anything at this point.
Install Mojave On Unsupported Imac
Step 3: Erase Local Hard Drive
When macOS Catalina installation wizard is loaded, you'll be able to see macOS Utilities window with several options. Choose Disk Utility option and then Continue. In Disk Utility, choose your hard drive (usually Macintosh HD) and hit Erase, which you will see in the top menu bar.
In the popup window, make sure the Format is set to APFS and hit Erase, leaving everything else as it is. You may want to change the name of the local HDD but you can leave it as Macintosh HD. Exit Disk Utility, which will take you back to the macOS Utilities window.
Step 4: Start Installing Catalina on Unsupported Mac
This time, in macOS Utilities, please choose Install macOS and then hit Continue. Hit Continue again to confirm the operation. When you see the license terms, hit the Agree option. You may need to do this twice for confirmation. Choose Macintosh HD (or however you renamed your local hard drive) and hit Install.
Wait for the installation to complete. This may take up to an hour or more depending on your system configuration and other factors.
Frequently Ask Questions
There are several known issues when installing macOS Catalina on ansupported Mac. However, it has less impact on daily usage.
No Tab for All Photos in Photos App. You will find this minor issue when using Photos app on Catalina. To fix this, you should right click any photo in Photos app and select 'Show in All Photos' from pop-up menu.
GPU acceleration not available. You will see a performance downgrade when playing games because the full video accleration is not available in Radeon HD 5xxx or 6xxx series video card.
WiFi not working. If you could not join any WiFi network, then you should use this command to fix it manually: sudo networksetup -setairportnetwork en1 SSID PASSWORD
Summary
Definitely, it is not a simple task to install macOS Catalina on an unsupported Mac. You have to complete the task manually, which is more challenging than a direct update being pushed by Apple official. However, the above tutorial proves to be fine on most of unsupported Macs we listed in Section 3. Now, enjoy using macOS Catalina on an officially unsupported device!