I also have a YouTube video going over the whole process.
- Early-2008 or newer Mac Pro, iMac, or MacBook Pro(MacPro 3,1 and 4,1, iMac 8,1 and 9,1, MacBook Pro 4,1, 5,1 5,2, 5,3,5,4, and 5,5)
- Late-2008 or newer MacBook Air or Aluminum Unibody MacBook (MacBookAir 2,1, MacBook 5,1)
- Early-2009 or newer Mac Mini or white MacBook (Macmini 3,1, MacBook 5,2)
- Early-2008 or newer Xserve (Xserve 2,1, Xserve 3,1)
Machines that ARE NOT supported:
- 2006-2007 Mac Pros, iMacs, MacBookPros, and Mac Minis (MacPro 1,1 and 2,1, iMac 4,1, 5,1, 5,2, 6,1 and7,1, MacBook Pro 1,1, 2,1, and 3,1, Macmini 1,1 and 2,1)
-- The 2007 iMac 7,1 is compatible if the CPU is upgraded to a Penryn-based Core 2 Duo, such as a T9300.
- 2006-2008 MacBooks (MacBook 1,1, 2,1 3,1 and 4,1)
- 2008 MacBook Air (MacBookAir 1,1)
-- Note: Make sure SIP is disabled on the system you intend to installHigh Sierra on. If it's not or you're unsure, just boot into your Recoverypartition of your currently installed copy of OS X, open Terminal, andrun 'csrutil disable'.
Things you'll need:
- A copy of the macOS High Sierra InstallerApp. This can be obtained from the Mac App Store using a machinethatsupports High Sierra, or by using the built-in downloading feature of the tool. In the Menu Bar, simply select 'Tools > Download macOS High Sierra...'
- A USB drive that's at least 8 GB in size
- A copy of the tool - Download here (Current version: 2.7.0, SHA1: 73f180d30200ef5f6d900440fe57b9c7d22bd6bf)
-- View changelog and download older versions here
- Trackpad (MacBook5,2 affected only). The trackpad in the MacBook5,2isn't fully supported in High Sierra. While it works and is fully usable,High Sierra detects it as just a standard mouse, preventing you fromchanging some trackpad-oriented settings.
How to use:
1. Insert your desired USB drive, open Disk Utility, and format it as OS X Extended (Journaled).
2. Open the 'macOS High Sierra Patcher' tool, and browse for your copy of the macOS High Sierra Installer App.
*Ensure that the tool successfully verifies the app.
3. Next, select your USB drive in the Target Volume list, and click 'Start Operation.'
4. When the operation completes, boot your target unsupported Mac offthe USB drive you just created by holding down the Option key while turning on the machine, and selecting the drive.
Note: Only perform steps 5 and 6 if you intend to do a clean install.Otherwise, you can simply skip these steps and install to your volumecontaing a previous version of OS X, and it'll do an in-place upgrade.
5. When the installer boots, open Disk Utility from the Utilities menu, or by double-clicking it in the Utilities window on the bottom left corner of the screen.
6. Select the disk or partition you want to install on, and erase it,ensuring to use either Mac OS Extended (Journaled), or APFS as the filesystem type.If formatting an entire drive, ensure GUID is selected.
-- Please note that if you use APFS, you will not have a bootable Recovery partition.
-- It is recommended that you only use APFS if the target drive is an SSD.
-- If you decide to use APFS, a custom booting method will be installed by the post-install tool, as the firmware of these unsupported machines does not natively support booting from APFS volumes. It is not quite as clean as native booting, but will not cause any issues while running High Sierra. A demo of the modified booting process can be viewed here.
7. Install macOS normally onto the desired volume.
8. When the install completes, reboot back onto the installer drive.This time, open the 'macOS Post Install' application.
9. In the application, select the Mac model you are using. The optimalpatches will be selected for you based on the model you select. You canalso select other patches of your choosing.
-- The 'i' button next to each patch will show more details about the respective patch.
10. Select the volume you have just installed macOS High Sierra on, andclick 'Patch.' When it finishes patching, click 'Reboot'. It may sitthere for a few moments rebuilding caches before rebooting.
-- If for somereason the system fails to work correctly after rebooting, boot backinto your installer drive, run the post install patch again, and select'Force Cache Rebuild' before rebooting. This isn't necessary under mostcircumstances.
11. When it reboots, it should now boot into a fully working copy ofmacOS High Sierra.
- If selected in the macOS Post Install tool, your High Sierra install will have a program named 'Patch Updater' located in your /Applications/Utilities folder. This program will alert you when new updates to patches are available for your machine, and will prompt you to install them. If you do not have Patch Updater installed, but would like it, you can download and run the script found here to do so.
System updates, such as 10.13.1, should install normally if 'Software Update Patch' was selected in the macOS Post Install tool, or installed using the Patch Updater program. If for some reason updates aren't showing up, or you did not apply the patch, you can install it manually using the script found here.
-- If the machine does not start up properly after applying a system update, you will need to boot off your patched installer volume, and re-run the post-install patch on your High Sierra volume. Ensure you select 'Force Cache Rebuild' before rebooting.
Q: The tool created the USB drive successfully, but when booting, the progress bar hangs a bit more than half way.
A: Check your copy of the Install macOS High Sierra App. If you're using thelatest version of the tool, you must be using the latest version of theInstall macOS High Sierra App. Version 1.1 ofthe patch tool and older support older versions of the installer app.
Q: The patch tool gives me errors, such as 'Error copying files...'.
A: Check to make sure your USB drive is writeable. Try re-formatting it, or just try a different USB drive.
Q: The patch tool gives me a 'Mounting Failed' error
A: Check to make sure your Install macOS High Sierra App is the correct one.It should be around 5GB in size. If you used the 'Skip App Verification' option, you have most likely selected an invalid app thatdoesn't contain the necessary files.
Q: I cannot open my copy of Install macOS High Sierra with the patch tool.
A: If you downloaded the copy linked above, it is distributed inside aDMG file. You must open this file (mount it) to access the InstallmacOS High Sierra App you need to select.
Q: I don't see my hard drive partition in the installer screen or in the post-install tool.
A: Make sure FileVault is disabled, or use the instructions found here to unlock it manually using Terminal.
Q: I get a 'NO' symbol when starting up after successfully installing High Sierra.
A: Make sure you have run the post-install patch on the correct volume, as detailed above in steps 8-10.
Q: I get a 'NO' symbol when starting up from the patched USB drive
A: Check the supported/not supported list at the top of this page. Ensure your machine is in the supported list.
Q: My iSight camera doesn't work after installing High Sierra
A: Make sure you properly remove (using the program's uninstaller, not by simply dragging the application to the Trash) all virtual machine software installed on your machine, such as VirtualBox, VMWare, etc.
Q: I get 'NSURL' errors when trying to update my machine or use the App Store
A: This is usually the result of having an invalid CatalogURL set. To revert to stock, simply run 'sudo softwareupdate --clear-catalog' in Terminal, and then run the software update patch script located above.
Q: Safari, App Store, and/or Mail stopped working after installing a system update
A: Download and run the Onyx application, select 'Maintenence' at the top, then click the Run button.
Q: I get a 'No packages were eligible for install' error when attepting to install High Sierra
A: This is due to your system's date and time being set incorrectly. To fix it, you can either boot into your current OS X install and set the date, or you can use Terminal after booting from your patched USB installer drive to set the date. Instructions to set the date using Terminal can be found here.
- Macos Catalina Beta Patcher
- Macos Patcher Download
- Macos Patcher Sierra
- Dosdude1 Macos Big Sur
- Macos Patcher Catalina
- Open the 'macOS Sierra Patcher' tool, and browse for your copy of the macOS Sierra Installer App.Ensure that the tool successfully verifies the app. Next, select your USB drive in the Target Volume list, and click 'Start Operation.' When the operation completes, boot your target unsupported Mac off the USB drive you just created.
- A primitive USB patcher for installing macOS Big Sur on unsupported Macs By the way, if you have a Mac Pro, Big Mac by StarPlayrX is another patcher worth considering. For 2008 Mac Pros (MacPro3,1) in particular, Big Mac is clearly a better option than this patcher (at least for now).
Macos Catalina Beta Patcher
This update includes:
Fixes adfly URL issues- Improves some error messages (makes them more explicit)
Fixes some minor UI issues/glitches
Fixes log files not appearing!
Add some verbosity to the install process (for logs)
Macos Patcher Download
This version is huge! It features many improvements everywhere! Anyway, in this version, you'll find:
Insert your desired USB drive, open Disk Utility, and format it as OS X Extended (Journaled). Open the 'macOS Mojave Patcher' tool, and browse for your copy of the macOS Mojave Installer App.Ensure that the tool successfully verifies the app.
Macos Patcher Sierra
Dosdude1 Macos Big Sur
Other Features in Previous Versions:
Macos Patcher Catalina
OS X El Capitan support- Ability to use a smaller Recovery (≈ 600MB instead of 5GB)with no compromises on available features
Bluetooth Audio FIX on 32bit ML Hack- Better MacPostFactor UI and UX
New Preferences Window- New Customise button- Search again for Install OS X _ _ _.app by a click of a button
Nicer interface- Nicer switching animations- Better MacPostFactor App
Better code organization
Snow Leopard Compatibility (BETA)
Contributors now working! Donate to figure on the list!
Ability to change the USB name when erasing it
New feature: 'One click install'
Really fixes Paypal donation link
Fixes USB space check (total space instead of left space)
Fixes ton of other minor bugs
Reduces the energy footprint when creating USB Installers
Better OSXHackers Preview boot logo
Better logs in case of error
OS X Mav+ kernels are now stored online (reduces MacPostFactor's size and allows MLforAll to add a new kernel without updating the MacPostFactor app itself)
Improved the Hacking Process
No more Error Code 3- Use of kernelcache whenever possible
Fixes USB installers not booting
Improved MacPostFactor 'side-apps' (recovery apps)
Better MacPostFactor Services Init- Better OS X Manager with SIP management support
MUCH BETTER 'MacPostFactor OS X Installer” (active progress bar.. support for ML and Mav...)
'About MCPF.app' and 'Dock Glass Effect Manager.app' replaced by 'MacPostFactor Utilities.app' that also adds new tweaks!