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[Guide] unsupported real MacPro works with Sierra (Example of real MacPro3,1)


MacPeet
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@oSxFr33k,

 

Can you boot the installer in safe mode with MacPro4,1 SMBIOS?

 

Maybe create the installer by the "restore BaseSystem.dmg method", remove AppleTyMCEDriver from the installer's /S/L/E and rebuild kernelcache as described in this thread for the El Capitan Installer (should still work for Sierra).

 

Good Luck!

 

 

I was thinking of doing it that way to but in the end it may be easier to just install onto an SSD from another PC and do all the edits I will need on that PC while booted to its native SSD and manipulate the SSD with the fresh Sierra install with whatever edits I need either remove that kext or try the SSD patch again.

 

Loosing all USB ports throws me for a loop when I choose one of the iMac system definitions although I am not really completely modifying the SMBIos only changing it at clover boot so maybe that is why I am loosing all the USB ports, because parts of the SMBios are still from the MacPro3,1?  I will try again modifying the SMBios complete while in Clover Configurator and then try iMac12,1 and iMac13,1 again.

 

I appreciate that information which would be yet another way to get around the installer!

 

Edited 6-30-17

 

I took the route I mentioned installing Sierra onto the SSD that was placed in a Sierra Supported PC, inserted the drive and works perfectly.   I removed the EC Ram Kext for MacPro AppleTyMCEDriver for SEL.

 

Thanks!

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  • 1 month later...
News for HighSierra:

DP Beta 3 still worked very well ...

DP Beta 4 does not work (Errors, no boot possible) ...

DP Beta 5 not tried ...

DP Beta 6 works again with the MacPro3,1 without problems (SSD with HFS +) ...

 

post-1358580-0-26229400-1502893443_thumb.png

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  • 4 months later...

SIP: Not necessarily.

My HD5770 needs a kext rollback from the Sierra.
For that I need "csrutil enable --without kexts".
Probably not with the Nvidia, right?
 
Here's the patched framework for NightShift High Sierra for you.
change this to /System/Library/PrivateFrameworks/
 
 
post-1358580-0-14770100-1515783089_thumb.png
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It works without Clover.

 

Flags: added here
/Library/Preferences/SystemConfiguration/com.apple.Boot.plist
 
SIP:
recovery boot -> Terminal -> csrutil disable -> SIP off
 
Kext's:
I'm using EasyKext Pro for install and cache rebuild
 
everything works fine without Clover
 
USB3:
try GenericUSBXHCI.kext
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correct

Boot recovery needs to be mounted first and the PlatformSupport.plist replaced.
 
@millusions, which USB3 card do you have?
I still have a free PCIe slot.
The HD5770 occupies two slots.
Third slot with Wi-Fi: TP-Link TL-WDN4800 N900 dual-band adapter (PCIe, 450 Mbps) - works OOB
A slot would still be free for USB3.
 
 
edit:
also the latest beta works very well
 
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  • 2 months later...
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