Found a way to install macOS Sierra on officially unsupported computers

13 Jun Apple released the first test build of the operating system macOS Sierra for developers. Unfortunately, some OS X Yosemite will not get the opportunity to move on the rails of a new software platform.

Minimum requirements for macOS Sierra was higher than the previous version of the operating system. From the list of compatible missing iMac 2007 and 2008. Will not get access to the platform owners of the 13-inch MacBook 2008 and 2009. Platform “does not pull” also MacBook Pro 2007, 2008 and 2009. Left behind and the owners of Mac Pro release in 2008 and 2009, as well as the Mac mini 2009.

The developers of the project Dosdude decided to restore justice. They have created a special utility macOS Sierra Patcher”, which solves the problem of updates on macOS Sierra for model Mac do not officially support this OS.

List of requirements:

  • The installation file macOS Sierra Developer Preview.
  • USB flash drive of at least 8GB.
  • Tool macOS Sierra Patcher, available here.

How to install macOS on unsupported Sierra model

Step 1: connect the flash drive to the computer, open Disk utility and format the USB flash drive format Mac OS Extended (journaled).

Step 2: Run the utility “macOS Sierra Patcher” and in the program window, specify the copy you previously downloaded the installation file “macOS Sierra Developer Preview Installer”.

The program should confirm the successful validation of the image with the message “Successfully verified as “Install 10.12 Developer Preview”.

Step 3: In the program window select your USB drive in the list of Target Volume and click the button “Start Operation…”.

Step 4: After run your Mac from a flash drive with macOS Sierra. To do this, after you restart the computer hold the Alt keyboard button.

Step 5: After running the installer, open Disk utility.

Step 6: Select the disk or partition you put the new OS and delete all the data on it, making sure the format is OS X Extended (journaled). If you format the entire disk, choose GUID.

Step 7: Continue with the normal installation of macOS Sierra.

Step 8: After installation is complete, macOS Sierra restart the computer with your stick. At this time you need to open the application Post Install macOS (from the drop down Utilities menu).

Step 9: In the software, select the model of your Mac. The tool will automatically propose the recommended settings depending on your computer. You can change them on your own.

Step 10: Select the Volume, select the drive on which you installed macOS Sierra and click Patch.

Step 11: once completed, press Reboot. Before rebooting may take several minutes required to rebuild the cache.

Step 12: After a normal restart on your Mac loaded with macOS Sierra.

Clifton Nichols

Clifton Nichols

Hi! I’m Clifton and I am a full-stack engineer with a passion for building performant and scalable applications that are beautiful and easy to use.

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