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macOS 11 Big Sur is an advanced Macintosh operating system that you can install on your Mac. It has got tons of new features to enhance the user experience, like making safari browser 50% faster, new features of messages, Air Pods improvements, new-design sidebar in mail and photos, widgets in the notification bar, and many more.

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Apple announced this new software on 22 June at WWDC. And this time, Apple did a big challenge and released the macOS 11 Big Sur along with iOS 14, iPadOS 14, tvOS 14, and watchOS 7. Meanwhile, Apple highlighted all the new features, changes, and improvements to the current software. You can download this new operating system from various sources now. Unfortunately, some Macs can't receive macOS 11 Big Sur update and they can't install the new operating system. In this article, we will discuss how to install macOS 11 Big Sur on an Unsupported Mac with easy steps.

Part 1: Official List of Big Sur Supported Mac Models

macOS 11 Big Sur Developer Beta is available to download. But you have to check your Mac compatibility first. If you have the below-listed Macs then you don't have to install macOS 11 Big Sur as these models will receive an update for macOS Big Sur automatically.

• MacBook 2015 and later
• MacBook Air and Pro Late 2013 and later
• Mac mini 2014 and later
• iMac 2014 and later
• iMac Pro 2017 and later (all models)
• Mac Pro 2013 and later

Part 2: Unsupported Mac Models of Big Sur (Not Eligible for Direct Upgrade)

On the other hand, if you have the below-listed Mac computers then you can install macOS Big Sur on those models as they are unsupported officially. You have to do some hacks to let Big Sur running on unsupported Macs.

• MacBook Air 2012
• MacBook Pro 2012 and Early 2013 MacBook Pro
• 2012 Mac Mini
• 2012 and 2013 iMac

Part 3: How to Install macOS Big Sur on an Unsupported Mac

All other forms of macs are unsupported, and not guaranteed. In fact, they probably won’t. The next thing you’ll need to do is figure out what WiFi card your Mac uses, if any. Or just bootcamp your old unsupported mac to windows 10 as the main OS and macOS as secondary to bring out some of its latent potential to 2021. I could not get it to properly install on imac 9,1. Mac OS X Server 1.0 is a operating system developed by Apple Computer.Released on March 16, 1999, it was the first version of Mac OS X Server. In this post, I’ll show how to Install macOS Catalina on Unsupported Mac. While every computer needs an operating system like Windows for PC, Macs also need an operating system. In this case, Apple made macOS for Mac. Since Apple has launched Mac, Apple has also rolled out macOS like Windows for PC.

Click on your HDD/SSHD/SSD in the sidebar menu and click erase at the top of the window. Select Mac OS Extended (Journaled) or APFS and name your HDD/SSHD/SSD to whatever name you would like it to have. The format APFS is required in Mojave to get the usual software system updates.

Before the installation, make sure that you take a backup of your Mac on an external hard disk as you will lose all your data when you install the new operating system. There are several backup software like Time Machine, iCloud, Dropbox, and many more. Once you have taken a backup follow the instructions below to install macOS Big Sur on your unsupported Mac.

Step 1: First you need to download two files from the links below to complete the macOS 11 Big Sur installation on your unsupported Mac.

• macOS Big Sur PKG installer: https://developer.apple.com/macos/
• macOS Big Sur PKG install hack: https://forums.macrumors.com/simple-installer-hack-zip.926156/

Step 2: After you have downloaded these two files, unzip the hack and copy the hax.dylib file and then paste it to home folder.

Step 3: Click on Install Assistant.pkg to install required contents to your Mac. Make sure that you have enough space on your hard disk as the file will take 20.1 MB size on your computer.

Step 4: Now go ahead and tap on the Install button to install the software on the disk 'Macintosh SSD'. Once you click the 'Install' button then it will ask you to enter your password. Next, click the 'Install Software' button.

Step 5: Next, you have to boot your computer into Recovery mode. You can do that by pressing Command + R immediately on startup until Recovery option appears. In case if you have no recovery partition, you can press down Command + Option +R to get into Internet Recovery. After that, go to Utilities -> Terminal and type 'csrutil disable', followed by pressing the Enter button on your keyboard.

Step 6: Type the following two commands in the terminal. Once you apply the first command, type your login password, and then input the second command.

sudo defaults write /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation -bool true

launchctl setenv DYLD_INSERT_LIBRARIES $PWD/Hax.dylib

Step 7: Next, run the macOS 11 Big Sur installer app that you installed from InstallAssistant.pkg a while ago. Now click on the 'Continue' button and follow the instructions to complete the installation process.

Step 8: The installation will take about 30 minutes approximately. Once the installation is successful you will see the macOS 11 Big Sur wallpaper on your Mac screen. That's it, you have installed macOS Big Sur on your unsupported Mac successfully.

Follow the above-mentioned method to install macOS 11 Big Sur on unsupported Mac devices. The method is quite easy; you just have to focus on the command line and other installation procedures.

Part 4: Alternative Method to Install Big Sur on an Unsupported Mac

The above tutorial is for users who still have access to their device. However, if your Mac is unable to boot into Desktop or you are using a Hackintosh, then you should follow the alternative method instead. In this part, we will show you how to create a macOS Big Sugr bootable USB on a Windows PC and install macOS Big Sur on unsupported Mac by using that bootable media.

Step 1: Make a full backup of important files on your Mac.

Step 2: Download a copy of UUByte DMG Editor and follow the instructions to install it on your Windows PC.

Step 3: Insert a USB flash drive into PC and open UUByte DMG Editor. Now, click the Burn tab to get into the new window.

Step 4: You will see three options on Burn windows. Please import macOS Big Sur DMG file into the program and choose the USB drive name. You can also set a new name for that USB drive. And this is optional.

Step 5: Once the setting process is completed, just click 'Burn' button located at the bottom to start burning dmg file to USB on your PC. You should wait about 10 minutes for this task.

Step 6: Plug Big Sur bootable USB on your Mac and press Power + Option combine keys to open Startup Manager. At this stage, you are able to select a booting device. Click on the USB drive and start Big Sur installation process.

This part is mainly for Windows users who want to install Big Sur on an unsupported Mac. The most important step is to create a bootable USB drive.

Troubleshooting:

If your system is showing any error message while installing the macOS Big Sur you can try these methods to fix it.

• Restart your Computer and continue with the installation.
• Make sure that your Mac’s date and time is correct.
• Check your Hard Drive to see that you have enough free space to carry out the installation.
• Make sure that the version of macOS Big Sur is up to date including the macOs installer
• Run first aid on your startup disk before installing macOS Big Sur to check any system files are damaged or not.

Summary

You can see that it is not hard to install macOS Big Sur on an Supported Mac. Make sure that you key in the right command lines which are mentioned above, as typing a wrong command can harm your system. Enjoy the great features that come with the macOS Big Sur on your unsupported device!

When you attach a storage disk to a Mac with the purpose of erasing or repartitioning it, you'll be presented with the option of selecting one of the three available partition maps: GUID Partition Map, Master Boot Record, and Apple Partition Map. In this article we will explain what a partition scheme is and which one to pick when formatting a drive.

Mac OS X Leopard (version 10.5) is the sixth major release of macOS, Apple's desktop and server operating system for Macintosh computers. Leopard was released on October 26, 2007 as the successor of Mac OS X 10.4 Tiger, and is available in two editions: a desktop version suitable for personal computers, and a server version, Mac OS X Server. OS X El Capitan (10.11) on Unsupported Macs macOS Extractor 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. This thread focuses on OS X El Capitan.

What Is a Partition?

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The fixed-sized subset of a disk drive treated as an individual unit by the operating system (in our case macOS) is defined as a partition. On every drive there are multiple partitions, and for this you will need a partition table or partition map – maintained by the operating system – to detail the status of the partitions.

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GUID Partition Map

This is a standard for the layout of the partition table on a storage disk using globally unique identifiers (GUIDs). As part of the Unified Extensible Firmware Interface (UEFI) standard, GUID is a bootable standard for systems with EFI firmware such as macOS. Non-Intel Macs won't support this bootable standard, hence the only option available to them is the Apple Partition Map (APM).

Apple Partition Map

Used on disks formatted for use with 68k and PowerPC Macs, the Apple Partition Map is the scheme that defines how the data is organized. Starting with OS X Tiger, both APM and GUID partitions can be used for accessing volumes, but PowerPC-based Macs can only boot from APM disks. While Intel-based Macs generally boot from a GUID Partition Table, they are all able to start the operating system from APM and Master Boot Record (MBR) using the BIOS-Emulation called EFI-CSM.

Master Boot Record

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Introduced by IBM in 1983 to support the 10MB hard disk, the Master Boot Record is a type of boot sector developed for use with IBM PC systems. It is currently used for Windows partitions formatted as MS-DOS (FAT) or ExFAT.

Choosing a Partition Map

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Now you know which partitioning map is which, the next time you insert an external drive or want to partition the built-in storage disk of the Mac, it will be easier to choose between the available options.

When formatting or erasing a volume with Disk Utility, you'll see a format menu prompt asking you to choose from:

• Mac OS Extended (Journaled)
• Mac OS Extended (Journaled, Encrypted)
• Mac OS Extended (Case-sensitive, Journaled)
• Mac OS Extended (Case-sensitive, Journaled, Encrypted)
• MS-DOS (FAT)
• ExFAT
• APFS (macOS High Sierra’s new file system)
• APFS (Encrypted)
• APFS (Case-sensitive)
• APFS (Case-sensitive, Encrypted).

Be aware that APFS is compatible only with macOS High Sierra and higher, so earlier versions of OS X or macOS won't mount an APFS volume. If you want maximum reach, Mac OS Extended (Journaled) is the right choice.

Below the file system format, the Disk Utility dialog box will list another contextual menu, the partition map scheme, which gives you another great tool to create targeted volumes. If you are looking to format a disk that will be shared with Windows users, the MBR scheme and MS-DOS (FAT) are the best choices. For drives used with Intel-based Macs only, the GUID Partition Map should the option to go for.

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If you don't see the partition map scheme option, it is likely because Disk Utility doesn't list all volumes. This will prohibit Disk Utility from erasing the disk and show you an error message. To address this issue, you should click on the View button located in the top-left side of the Disk Utility dialog box and select “Show All Volumes”. From that point on, Disk Utility will ask for your partition map preference, and the formatting process will be smoother.

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