How to build your own iMac Pro [Successful Build/Extended Guide]

[PedroJSkywalker]

 

[antagon]

Which makes me indefinitely happy...

That's what I hoped for

 

[SomersetM]

Thank you very much for your guide.
I'm using 7820 x.
Your guide says that 7820x, 7900x do not use ssdtprgen.
Can you tell me why these two models are the only ones?

 

[lamidue]

Good evening @kgp I've been struggling for several hours getting the USB installer to show in Clover with no luck. USB installers containing older versions of OSX do show up in Clover. So, I know the problem is related to OSX 10.13.2 and how I create the USB installer. Now, everything seems to work out well till the point where I have to make it bootable.

cd /Volumes/Install\ macOS\ High\ Sierra
mkdir .IABootFiles
cd .IABootFiles
cp /Volumes/Install\ macOS\ High\ Sierra/System/Library/CoreServices/boot.efi .

I receive the response:

usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file target_file
cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file ... target_directory

Afterwards the the hidden folder .IABootFiles is empty? Could you please let me know if this is correct behaviour?
I can't eject the USB before I quit Terminal (As Terminal is using the USB disk). I fear it might be in process of something it never finishes

 

[kgp]

Good evening @kgp I've been struggling for several hours getting the USB installer to show in Clover with no luck. USB installers containing older versions of OSX do show up in Clover. So, I know the problem is related to OSX 10.13.2 and how I create the USB installer. Now, everything seems to work out well till the point where I have to make it bootable.

cd /Volumes/Install\ macOS\ High\ Sierra
mkdir .IABootFiles
cd .IABootFiles
cp /Volumes/Install\ macOS\ High\ Sierra/System/Library/CoreServices/boot.efi .

I receive the response:

usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file target_file
cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file ... target_directory

Afterwards the the hidden folder .IABootFiles is empty? Could you please let me know if this is correct behaviour?
I can't eject the USB before I quit Terminal (As Terminal is using the USB disk). I fear it might be in process of something it never finishes

Guess your path to your USB Drive is incomplete or wrong? .. you should learn how to use unix commands..

 

[kgp]

Thank you very much for your guide.
I'm using 7820 x.
Your guide says that 7820x, 7900x do not use ssdtprgen.
Can you tell me why these two models are the only ones?

Because these two Skylake-X models are up to my knowledge the only ones fully natively implemented by OSX so far. All others still seem to need a ssd.aml to properly run XCPM..

 

[kgp]

Guide Update - 17.01.2018

EFI-Folder related modifications:

• Implementation of Clover Boot Loader Clover_v2.4k_r4382

• AptioMemoryFix.efi replaced by OsxAptioFix3Drv-64.efi of Clover_v2.4k_r4382

Note that a new EFI-Folder has been attached at the bottom of the originating post/guide and is once more attached here blow.

Guide related modifications:

• Modifications of Section C.1

OsxAptioFix3Drv-64.efi maintains native NVRAM implementation for our iMac Pro Skylake-X/X299 Systems under macOS High Sierra 10.13.2 (17C2120) and 10.13.2 SA (17C2205), thus EmuVariableUefi-64.efi has been also omitted in the /EFI/Clover/drivers64UEFI/ directory contained in newly distributed EFI-Folder.

Further note that for native NVRAM implementation, Clover's RC Scripts have to be omitted during the clover boot loader installation. If already previously installed, remove Clover's RC Scripts from the /etc directory of your macOS USB Flash Drive Installer or System Disk as described in Section C.1) of my guide.

OsxAptioFix3Drv-64.efi works absolutely flawless on my system, without any memory allocation errors or slide issues even with the "slide" boot flag disabled.

Thanks for the hard work of @apianti et al. (Clover Team)!

Enjoy and have fun

 

[zhengfu23]

Hi KGP! Thank you so much for taking your time to write this guide and answer all the questions here!

I am at step D.2, using a MacBook Pro 14,3. I don't think you mentioned whether we need to download the Install High Sierra.app before hand but I do have it inside my applications folder and I ejected the InstallESD partition with Disk Utility after closing the install window that pops up automatically after downloading finished.

So attached please find the screenshot of my terminal output from both using the script as well as entering the command in the terminal directly. Thank you in advanced!

 

[jerry398]

Hey KGP, I am about to attempt to update my system from the iMac 17,1 to iMac pro 1,1 with the supplemental update. I was wondering if the motherboard patch to unlock the motherboard register is necessary in your opinion for my CPU (i7-7820X). Is there really any benefit to doing this or should I just enable "xcpm_core_scope_msrs" in KernalToPatch and just leave it locked. Hate to mess around with BIOS firmware if I don’t have to.

 

[kgp]

Hey KGP, I am about to attempt to update my system from the iMac 17,1 to iMac pro 1,1 with the supplemental update. I was wondering if the motherboard patch to unlock the motherboard register is necessary in your opinion for my CPU (i7-7820X). Is there really any benefit to doing this or should I just enable "xcpm_core_scope_msrs" in KernalToPatch and just leave it locked. Hate to mess around with BIOS firmware if I don’t have to.

My recommendations are clear, aren't they?