Unable to Update from El Capitan to Sierra

[swigganicks]

It's been a while since I've messed with my install and I'm trying to update from El Capitan to Sierra. I'm on 10.11.6 and whenever I try to download the sierra update through the app store, I get an error "This version of macOS 10.12.2 cannot be installed on this computer." and if I try the combo update to 10.12.2 I get an error saying "This software is not supported on your system."

I have updated clover, and in the EFI/CLOVER/kexts/Other folder I have "FakeSMC.kext" in there (I could not find one in my Library/Extensions though...) My model is saying it's a Mac Pro 3,1 so I'm not sure if that has anything to do with it. Does anyone have any ideas on where to go from here?

 

[BreBo]

My model is saying it's a Mac Pro 3,1 so I'm not sure if that has anything to do with it. Does anyone have any ideas on where to go from here?

macOS Sierra Does NOT Boot with MacPro3,1 MacPro4,1 System Definitions

 

[Inrik]

I ran into this problem with my Gigabyte Z97N-WIFI motherboard which has two ethernet jacks.
Solved it by disabling one of them and reinstalling the driver. YMMV