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(GUIDE) How to downgrade from macOS Catalina back to macOS Mojave

  1. macOS Catalina is the next major operating system for Mac. If you mashed your fingers all over that install button before considering that you may not be ready for it, you can downgrade back to macOS Mojave. If you follow these steps you'll be back to your old setup in no time.

How To Create Catalina 10.15 Bootable Installer for Mac and Hackintosh


Requirements Download

You will need an 16GB+ USB drive, and you'll need to download the following:



Step 1 - Download macOS 10.15 Catalina
Do not download it from any other source as you can't verify if it's legit or malicious.

Mojave Systems: Open System Preferences, then click on System Updates, wait for the Catalina update to appear, and select the "Upgrade Now" button. Once it's finished downloading, it will open the Catalina installer app. Simply close out of this (COMMAND + Q) and move onto the next step.

High Sierra Systems: Open the Mac App Store, then click on the Updates tab at the top and download macOS Catalina. If it doesn't appear in the updates tab, search it instead. Once it's finished downloading, it will open the Catalina installer app. Simply close out of this (COMMAND + Q) and move onto the next step.



Step 2 - Format USB Drive in Disk Utility

First, in your USB drive, then open Disk Utility. Disk Utility can be found in /Applications/Utilities/Disk Utility.app.

In here, click onto the Sidebar Menu Options button, and select "Show All Devices".


 

Then, click onto your USB Drive (not the partition, but the drive itself).

 


Now click the "Erase" button, and set everything to match the screenshot below. Then click "Erase".

   

If erasing the drive fails, redo this step another few times.
Disk Utility is garbage nowadays.

Step 3 - createinstallmedia Command



First plug in your 8 GB+ USB drive, then open Terminal and type in the following command:

Code:
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --nointeraction --downloadassets --volume /Volumes/USB/


Type in your password when promoted, then press the enter key.
Note: you won't see any indication of your password being typed in.

This will start the copying of the installer files to your flash drive. It can take quite a few minutes to finish the the process, so be patient.

(lol, patience with hackintosh?)



Step 4 - Customize Clover

Open up the Clover installer package and click "Continue" twice. Then, click on "Change Install Location..."
Then, select the options that are listed below:

No need to customize Clover at this time. If your options are different than in the video, change them to match the video. I will update this if this changes.




Step 5 - Install the Required Kexts


Open up the EFI partition (location: /Volumes/EFI/), and navigate to "EFI", then to "CLOVER". Then, navigate to the "kexts" folder, then to "Other". You should be in the directory /Volumes/EFI/CLOVER/kexts/Other/. In here, you'll want to drop in the required Kexts as well as any other Kexts you need for your system.

These are the required Kexts:
You can find other Kexts for your system here, such as Ethernet Kexts.


Congratulations! This is the end.

If you've gotten this far and have had no issues at all, that's good. You can now boot your computer to this drive and install macOS Catalina on a SEPARATE PARTITION from your main partition. Do not install Catalina on your main partition, or else you're most likely going to encounter issues and may not be able to recover from.


If you have any issues or need help, feel free to ask.

Clover Screent Shot


    

Core i9 9900K+Z390 Designare Thunderbolt Mojave 10.14.5

Core i9 9900K+Z390 Designare Thunderbolt Mojave 10.14.5














Parts List
  • CPU: Intel i9 9900K
  • Motherboard: Gigabyte Z390 DESIGNARE (ThunderBolt)
  • GPU: Sapphire Radeon RX Vega 64 8GB
  • RAM: 2x 16GB Kingston HyperX 2666MHz
  • Case: Fractal Design Define R6
  • Storage: 1x 500GB 960 Evo, 1x 1TB WD Blue M.2 SATA, 2x 8TB HGST HDD, 1x WD 4TB HDD, 1x 3TB Hitachi HDD
  • Extras: NZXT Internal USB hub
    Sound Card: UAD X8 Thunderbolt Card (Apple Thunderbolt Cabel Bought additional)
Working
  • All case and motherboard USB 2 and 3 ports
  • iGPU
  • Dual Gigabit Ethernet
  • Both onboard Thunderbolt 3/USB 3.1 (tested with Sonnet eGPU enclosure and a Blackmagic eGPU with some interesting results:eGPUs have hotswap with the custom SSDT created by CaseySJ but cannot be used and are not properly recognizedeGPUs can be used WITHOUT the SSDT, but are detected as internal PCIBlackmagic Decklink 4K Extreme 12G works flawlessly with required drivers, hotswap and all)
  • Internal case USB hub
  • 3 Dell P2214H displays via GPU's DisplayPort (1 vertical monitor patched to rotate properly on boot)
Not working
  • Intel CNVi WiFi+Bluetooth card (could switch out for a BCM94331CD I have, but I don't really need WiFi+Bluetooth in macOS)
  • Occasional "couldn't allocate runtime area" problem on boot - solved by restarting the computer (looking into eliminating this altogether, but it hasn't come up so far since updating the install to the 18E2034 build and using the iMac19,1 SMBIOS)
  •  Fixed by changing the install to the 18E2034 build of 10.14.4 and using the iMac19,1 SMBIOS.
Notes
Guides used:
Vanilla install +

Instead of copying kexts to /L/E, I'm injecting them via Clover.

Thank you to all previous OPs who've documented their work and consequently made this build almost problem-free!

Hack Pro 9th Gen Intel 9700k Dual Vega 64 Hackintosh

Hack Pro (Late 2018)" build:Core i9-9900k - Z390 Aorus Pro - 64GB RAM - 2x Sapphire Vega 64




Components

GIGABYTE Z390 AORUS PRO Motherboard

Intel Core i9-9900K Processor

CORSAIR VENGEANCE LED 64GB

2 x SAPPHIRE Radeon RX Vega 64

CORSAIR RM1000i 1000W Modular Power Supply

Rosewill CULLINAN PX Case

SAMSUNG 970 EVO M.2 2280 1TB SSD

Thermaltake Water 3.0 280 Riing CPU Cooler

2 x Thermaltake Riing 12 Series 120mm Fans

Sabrent Aluminum USB Audio Interface

FayTun 802.11AC 1200Mbps USB Wifi Adapter



Two 30" Cinema Displays
They never get old even when they get old

Two Apple Mini DisplayPort to Dual-Link DVI Adapter



Comments

I do a lot of motion graphics work, and my Early 2009 cheese grater Max Pro 8 core was starting to feel tired. I had been meaning to do the dual 6 core upgrade for a while, but I felt like building a new machine would be more fun and most of all- way faster!

This is my first build. So I really did not know exactly what I was getting myself into by buying components that had little exact use cases on the forum. But I trusted myself to be able to figure it out. Luckily, I succeeded enough to make a useful workstation. It wasn't without lots of troubleshooting, but hopefully the following directions make it simple enough to follow.

I wanted something simple, so I chose a very stripped down version of a motherboard, this one lacks Bluetooth, WiFi, and probably other bells and whistles you may find on other higher end ones. I wanted ease of installation though, so I was looking for compatibility out of the box.

Installation of the OS
At first I tried to install with High Sierra because I had initially planned to use two GTX 1080's and that limited me to HS. However after realizing that things would be much easier using AMD cards, I switched for Vega 64's which ended up being choice anyway. Then, I chose to do Mojave because I had read that installation was even easier.

1. Change BIOS Settings

Save & ExitLoad Optimized Defaults
BIOS → Fast Boot : Disabled
BIOS → LAN PXE Boot Option ROM : Disabled
BIOS → Storage Boot Option Control : UEFI
Peripherals → Trusted Computing → Security Device Support : Disable
Peripherals → Network Stack Configuration → Network Stack : Disabled
Peripherals → USB Configuration → Legacy USB Support : Auto
Peripherals → USB Configuration → XHCI Hand-off : Enabled (Extremely important)
Chipset → Vt-d : Disabled
Chipset → Wake on LAN Enable : Disabled
Chipset → IOAPIC 24-119 Entries : Enabled
2. Prepare VegaTab_64.kext for AMD Vega GPU fan speed fix
2a. Download and extract VGTab_en.zip from @pastrychef's build thread
2b. Open VGTab-en app
2c. Select Vega 64 (if this page comes up blank try reloading the app)
2d. Target Speed : 4900
2e. Target Temperator : 55
* You can adjust all of these settings to your liking later, but this is what pastrychef recommended and it's what I use.
2f. Select Generate Control Information (this will output VegaTab_64.kext to your desktop)
3. Prepare USB Installer with UniBeast for Mojave
3a. Make some minor modifications to USB EFI Partition using Clover Configurator
• Open USB Stick EFI Partition, navigate to EFI/CLOVER/
• Drag config.plist onto Clover Configurator app icon to open
System Parameters → Inject Kexts : Yes
SMBIOS → Product Name : iMac18,3 (or iMacPro1,1 but I am getting slightly better benchmark with iMac18,3)
Boot → Verbose : Enable
Rt Variables → CsrAcrtiveConfig : 0x67
• Close Clover Configurator, select "OK" if warning dialog for permanent volume storage
3b. Add a few kexts to the USB Stick EFI Partition → EFI/CLOVER/kexts/Other Folder
+ Lilu.kext
+ Whatevergreen.kext
+ VegaTab_64.kext (the file output from VGTab_en app that we made in step 2)
3c. Create "Post Installation" Folder on your USB stick main partition and add a few things
+ Clover Configurator app
+ FayTun USB 802.11AC Adapter Software

4. Install Mojave
4a. Restart
4b. Hold F12 during BIOS to enter boot menu
4c. Select your USB Stick EFI
4d. When installer boots, enter Disk Utility and format "Erase" the SSD. Choose the recommended filesystem option (Journaled)
4e. Exit Disk Utility
4f. Install Mac OS X
* if computer restarts during this time, do not worry. Installation will take a number of restarts before completion. From here on out, select your main SSD hard drive during the boot sequence.

5. Copy EFI from USB Stick to Main Hard drive
5a. Open Clover Configurator on your USB stick main Partition
5b. Mount EFI → SSD → Mount Partition
5c. Mount EFI → SSD → Open Partition
5d. Mount EFI → USB Stick → Mount Partition
5e. Mount EFI → USB Stick → Open Partition
5f. Copy the entire contents from the USB Stick EFI volume to the SSD EFI Volume (Replace)

6. Post Install
• Install FayTun USB Wireless Adapter drivers
• Restart

What Works
+ Graphics
+ Built in ethernet
+ Audio (with USB Adapter)
+ WiFi (with USB Adapter)
+ Sleep and Shutdown

What Doesn't Work
– On-board audio
– Bluetooth (I don't have BT hardware, not needed though)
– DRM (I don't buy anything from on iTunes/App Store so no way of testing this)
– Thunderbolt (I really want to add this somehow)

To Do (I may need some help here)
• Audio Device recognition
• MultiBeast settings for automatic boot process


Final Thoughts

I still have some things to maybe correct and there are still some things untested. I am not sure if USB 3 works all the way, but for the most part this machine functions for what I need it for (which is a 3D animation & motion graphics workhorse). Audio sounds great through the USB audio adapter and took no software installation at all. The Vega 64's are behaving wonderfully and I am getting some great numbers in all benchmarks. No crashes, no hangs, and no failed boots to report with the system configured as shown.

I am super happy with this machine. I took me very little time to build considering this was my first build and first hackintosh project. Super thankful to all of the other contributing members here on these forums who made this a fun learning experience that has already been super rewarding.


Benchmarks (stock, no overclock)

Best Hackintosh Configuration for Video Editor's (GUIDE)


Best Hackintosh Configuration for Video Editor's


We today suggest a best Video editing Hackintosh configuration for 4k work Red camera Editor's and davinci resolve colour grading and also use for audio editor’s and music programmer’s who use logic pro x pro tools and cubase etc daws.

Note: This configuration we build also for Bollywood industry movies editor’s and music programmer’s i hope this post will be help for who want to build a powerful hackintosh looking for editing and 4k-8k work.

We use 4tb 4 HDD because of 4k throuput  we use RAID 0 please understand first raid 0,raid 1,raid 5,raid 10.before partion in RAID drive.We also post a understaing of raid partition for read click here..


Hackintosh Components






                            OR
Zotac Geforce GTX 1050Ti 4GB for Tight Budget






For Installation Guide Highsierra in this Configuration Click Here

AMD Ryzen Hackintosh High Sierra (Guide)



HW Specs:
Ryzen 1600
16g Gskill Ripjaws 3200 cas16
Gigabyte GA-AB350M gaming 3 
GT1030 High Sierra
Samsung 960 evo 240gb NVME M.2
Generic 3 dollar usb keyboard and mouse ( bought just for installation )

Followed this tutorial to the dot: