Step 1

Download latest OpenCore Legacy Patcher (OpenCore-Patcher-GUI.app.zip) from here and run it.

Step 2

Click Open button to run OpenCore Legacy Patcher.

Step 3

Enter your users password and click OK button to install additional components needed for OpenCore Legacy Patcher.

Step 4

Click Create macOS Installer button to start creating bootable macOS installer USB stick.

Step 5

Click Download macOS Installer button.

Step 6

Select the latest macOS Sequoia version and then click Download button.

Step 7

Click Download Anyways button.

Step 8

macOS Sequoia DMG image will be downloaded directly from Apple servers. It may take some time on slower Internet connection speeds.

Step 9

Click Yes button to create macOS installer.

Step 10

Click Install macOS Sequoia button.

Step 11

Click a button with your USB flash drive name.

Step 12

Click Yes button to erase your USB flash drive.

Step 13

Creating a USB stick might take up to 30 minutes on a USB flash drives with slow write speeds via standard USB 2.0 hub.

Step 14

Click Yes button to start building OpenCore installation.

Step 15

Click Install to disk button to install OpenCore to your disk.

Step 16

You can click your main harddisk button or your USB flash drive button. If OpenCore Legacy Patcher is installed on a USB flash drive, it will have to be always inserted when running macOS Sequoia.

Step 17

Click EFI partition.

Step 18

Click Reboot button to restart your computer.

Step 19

Press and hold Option key (or ALT key) on boot until you see standard grey boot picker and click an arrow under EFI boot.

Step 20

Click an arrow under Install macOS Sequoia on another boot picker.

Make sure the USB flash drive is inserted into Mac Pro built-in USB hub (front or rear). Extra USB PCIe cards won't show a bootable flash drive.

Step 21

If you don't have a partition or volume for macOS Sequoia yet click Disk Utility to create one. If you already have one just skip to step 27.

Step 22

Choose one of the existing partitions on the left, then click Partition icon on the top bar.

Step 23

Click + symbol to add a new partition or volume for macOS Sequoia.

Step 24

Click Add Volume button to add another volume to existing APFS container. New partition would also work if you have a blank drive.

Step 25

Type any name in Name field e.g. SEQUOIA.

Leave a format as APFS and click Add button.

Step 26

Volume will be added to existing APFS container. Now just click Done button.

Step 27

Close Disk Utility and go back to main installer screen. Click Install macOS Sequoia to start the installation.

Step 28

Click Continue button on installer splash screen.

Step 29

Click Agree button on software licence agreement screen.

Step 30

Again click Agree button.

Step 31

Choose your new SEQUOIA volume and click Continue button to continue the installation. The system will be rebooted automatically several times. It might take about an hour to fully install macOS Sequoia.

Step 32

When installation is ready you will be presented with Migration Assistant. Leave the default radio button as is and just click Continue button.

Step 33

Now you can move data from your old macOS installation. Click your previous macOS drive and then Continue button.

As soon your data is moved you will see macOS Sequoia desktop. Make sure to always boot macOS Sequoia from a second OpenCore boot picker (set by default). To see it just click EFI boot on a default boot picker.

Please note that default boot picker might also change it's background from grey to black, but its functionality remains.

Step 34

If you installed OpenCore Legacy Patcher to your USB flash drive previously, installer would automatically remind you about installation on harddisk. Click OK button to confirm.

Step 35

Click Install to disk button.

Step 36

Select your harddisk name this time.

Step 37

Click on EFI volume.

Step 38

Click Reboot button to reboot the system. Post reboot your system will be fully working.

If you recently switched your graphics card to another model or upgraded macOS and there is no acceleration (everything is slow and Wi-Fi/Bluetooth doesn't work) you need to launch OpenCore Legacy Patcher again and click Post-Install Root Patch button. Post reboot everything would be working perfectly. Please see our guide.