For Mac users, the release of the newest macOS update is always a big day. What will the new interface look like? What new features are there? And, importantly, will it be compatible with my Mac? Big Sur is a significant update that is supposed to bring macOS more in-line with iOS. However, with every new update older Macs get left behind even though some devices can last for several years. If your old Mac is optimized and you’ve taken good care of it then it’s probably still running great. Although older computers may not officially support Big Sur, it doesn’t mean that it’s impossible to install.
Sadly, these Macs are way too old to even boot Big Sur, so they do not support this patcher. Note: 2008 Mac Pros do work with Big Sur, but not with this patcher. I recommend checking out StarPlayrX's BigMac Patcher for those. First Time User Guide macOS 11.2.3 (from an unsupported Mac) If running Bigmac2 recovery / install disk from OWC 2.5' SSD, use a 4x PCIe slot (on Mac Pro 3,1 use the 3rd PCIe slot, not the 1st or 2nd 16x slots) If Bigmac2 app does not run, try resigning it: codesign -force -deep -sign - /Applications/bigmac2.app. Unsupported Macs supported by ‘Patched Sur’ First of all, make sure that your Mac is not in the official macOS Big Sur list of compatible Macs.At the time of writing, the following Macs are.
Which Macs Don’t Support Big Sur?
Whether or not your Mac officially supports Big Sur depends on the model as there is no set cut-off point. If you have any of the devices below then you’re going to have to install Big Sur the hard way:
- MacBook – mid 2010 and earlier
- MacBook Air – mid 2012 and earlier
- MacBook Pro – early 2013 and earlier
- iMac – late 2013 and earlier
- Mac Mini – late 2012 and earlier
- Mac Pro – mid 2012 and earlier
All of the devices mentioned above are now seen by Apple as obsolete products, meaning they’re no longer supported technically either by replacement hardware or through OS updates.
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MacBook Pro Issues
Some MacBook Pro users are having difficulty with Big Sur even though their device is technically compatible. Anyone with a late 2013 or mid 2014 model MacBook Pro is able to upgrade their system but may end up facing a permanent black screen. Thankfully, Apple has offered a workaround for users experiencing these kinds of issues. In spite of this, some people are still having problems and in that case the only solution is to contact Apple Support directly for help.
How To Upgrade an Older Mac To macOS Big Sur
Anyone with an incompatible Mac will have noticed that Software Update doesn’t give you the option to install Big Sur. To upgrade you’ll need a patcher to trick Software Update into thinking your computer is compatible. But before you get started, there are a few things you need to do.
First, you need to make sure you’re starting the process with your Mac running Catalina. You’ll also need a couple of USB flash drives with at least 16GB storage. These drives must be modified in Disk Utility to work as your bootable OS installer. The first flash drive is for Big Sur and the second is to be used as a backup installer for Catalina in case anything goes wrong in the process. It’s also worth taking advantage of Time Machine for an extra safety net.
Of course, you’ll also need to obtain a copy of Big Sur since it won’t be available to download automatically. There are two ways to do this. First, you can register with the Apple Beta Software Program for free to download the beta. However, using a beta version can cause issues. Instead, it’s better to register with the Apple Developer program at $99 a year to download the finished article.
Next, you’ll need to find a patcher online that will be able to trick your system into installing Big Sur even if it’s incompatible. There are a few of these around and you’ll easily be able to find one on GitHub, like user barrykn’s micropatcher. But since each patcher works in slightly different ways, it’s important you follow every step of the process to the letter. You don’t want to end up with a broken Mac, after all.
When Not To Update an Unsupported Mac To Big Sur
Just because you can install Big Sur doesn’t necessarily mean that you should. First, it’s a very complicated process as the Big Sur update is one of the most significant in recent times, making it more difficult for patches to be created. In the past, like when upgrading older Macs to High Sierra, there were ready-made patches that made life easy. Anyone who isn’t a technical wizard may have issues with Big Sur if they don’t follow guides exactly. You also need to be sure that you’re confident using the Mac Terminal, as it’s an important part of the process.
Depending on what system you’re upgrading from, you may encounter issues that affect your Wi-Fi connection, graphics bugs that slow down your system, or frequent crashes. This is because Big Sur is relying on more recent hardware that simply doesn’t exist in older models. You’ll also find that new versions of the software you use daily are built with the assumption that you have Big Sur working without any issues. Meanwhile, much older systems will need significant upgrades to even have the capability of running Big Sur in the first place.
Macos Big Sur On Unsupported Macs
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[UPDATE: Patched Sur GitHub is down] Do you want to install macOS Big Sur on your 2012 or 2013 Mac? I will show you the easiest way to do it! This video is a step-by-step tutorial on how to use Patched Sur a macOS Big Sur patcher to create a USB Patched Installer and use it to upgrade macOS Catalina to Big Sur.
How to update Patched Sur from 11.2.3, 11.3, 11.3.1, 11.4 or 11.5 to 11.5.2
UPDATE!!!! – How to update your unsupported patched Mac to the latest version of macOS Big Sur with Patched Sur 1.0 with one click!
DISCLAIMER: Please understand that installing macOS Big Sur on your unsupported Mac is a best effort by the community. A ton of work went into getting the patcher to work! Some things might not work exactly right but it’s really really close. I would not recommend installing on a system that you count on for work or school. ALWAYS BACKUP YOUR FILES FIRST BEFORE YOU UPGRADE! Also note that certain features like sealed OS Snapshots are disabled. This is the only way to make the patcher work right now. The good news is that you are getting the latest security fixes from Apple. Some might argue that upgrading to Patched Big Sur makes your Mac safer since Apple is no longer fixing security issues on macOS High Sierra and below. Thank you!
Supported Macs with Metal Graphics Acceleration
* 2012 MacBook Air
* 2012 MacBook Pro
* 2013 Early MacBook Pro
* 2012 Mac Mini
* 2012 iMac
* 2013 iMac
Part 1 – Everything you need to know before Installing Patched Big Sur on your Unsupported Mac
COMING SOON!
Part 2 – How to Install macOS Big Sur on an Unsupported Mac with Big Sur Patcher
Part 3 – How to Install macOS Big Sur on an Unsupported Mac with Big-Sur-micropatcher
Part 4 – How to Install Updates on your Big Sur Patched Mac – Everything you need to know!
Part 5 – How to update your unsupported patched Mac to the latest version of macOS Big Sur with Patched Sur 1.0 with one click!
Part 6 – Big Sur on an Unsupported Mac w OpenCore Legacy Patcher 2008-2011 Graphics Acceleration!!! –
Big Sur Unsupported Patch
A big hat tip goes out to Ben Sova (Patched Sur), Barry K. Nathan (Big Sur Micropatcher) and everyone who worked on all the Big Sur Patcher projects!
Patched Sur – a macOS Big Sur patcher for unsupported Macs.
Patched Sur – Downloads Page
macOS Big Sur 11.5.1 Update Article
Install Macos Big Sur On Unsupported Mac Github
Direct Download Link to the macOS Big Sur InstallAssistant.pkg for macOS Big Sur final/production version.
Big Sur MicroPatcher – A macOS Big Sur Patcher
BigMac – Big Sur macOS 11 Mac Pro patcher for Mac Pro Towers
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Links
– Apple Mac Enterprise IT Blog & macOS News for MacAdmins
Mac Transition to Apple Silicon Everything you need to know!
New Article How to reinstall macOS on your Apple Silicon Mac
mrmacintosh.com/how-to-reinstall-macos-on-your-apple-silicon-mac-everything-you-need-to-know/
How to boot your Apple Silicon Mac into DFU mode + Restore macOS with Apple Configurator 2.
macOS ISPW Firmware Database – Download Full macOS ISPW Files!
MacOS Big Sur Index of need to know changes! (UPDATED)
macOS System Status (Issues) – OS, Xprotect & App Version Database
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