Getting started with Big Sur and Opencore on gigabyte z490m gaming x - Problems

[astrocreep]

Hi, trying to give Big Sur a go on a new system and encountering Opencore for the first time.

I've looked at both Aufera's great thread:

https://www.tonymacx86.com/threads/...e-0-7-3-4k-big-sur-11-6-video-editing.310153/ and the dortania opencore guide.

Tried using OC Gen-X in case I was doing something horribly wrong when trying it from scratch. I also tired pasting in Aufera's EFI instead, just in case - thinking it was similar enough that I'd at least get part way into the process before things go wrong.

In all cases I get halted at the first hurdle with an error:

"OC: Grabbed zero system-id for SB, this is not allowed.
Halting on critical error"

Thoughts on solutions or pointers to any particular reading/parts of the EFI files/config.plist that I should be looking at would be very welcome!

I'm running Gigabyte Z490M gaming x, onboard graphics, i5 10500 processor, 48GB of ram, 500GB sandisk M2.

 

[astrocreep]

Redoing with the following guide

just now I get the same error again. I've now attached my EFI folder. Thanks.

 

[Feartech]

Redoing with the following guide

just now I get the same error again. I've now attached my EFI folder. Thanks.

set SecureBootModel to Disabled

 

[astrocreep]

Thanks for the really quick reply, but that's not making any difference.

Here's what I've got alread, secure boot wasn't enabled. And neither Secure boot mode (Standard or Custom) makes a difference.

EDIT - removed unnecessary BIOS shot where I misinterpreted the instruction above!

 

[Feartech]

Thanks for the really quick reply, but that's not making any difference.

Here's what I've got alread, secure boot wasn't enabled. And neither Secure boot mode (Standard or Custom) makes a difference.
View attachment 531201

i meant in your config.plist.....

 

[astrocreep]

Ah, thanks! That makes a big difference, you are a star

 

[astrocreep]

So, with the above corrected in my EFI (attached earlier) I get the boot menu which allows me to select the USB installer, I then get a bunch of verbose output and then eventually it goes black and thinks about things for ages without ever bringnig up the Big Sur installer.

Out of curiousity, when i try the above with Aufera's EFI (and the config.plist change) I do get an apple logo and progress bar as it tries to load the Big Sur Installer, but the progress bar gets to about 20% and then stops moving.

 

[Feartech]

So, with the above corrected in my EFI (attached earlier) I get the boot menu which allows me to select the USB installer, I then get a bunch of verbose output and then eventually it goes black and thinks about things for ages without ever bringnig up the Big Sur installer.

Out of curiousity, when i try the above with Aufera's EFI (and the config.plist change) I do get an apple logo and progress bar as it tries to load the Big Sur Installer, but the progress bar gets to about 20% and then stops moving.

boot verbose in the other efi to see where it hangs, then post a pic here

 

[astrocreep]

Thanks, here are the last 2 screens before it goes (and stays) black.

 

[astrocreep]

Any suggestions for specific things to look for to get past the:

gioscreenlockstate 3 hs 0 bs 0 now 0 sm 0x0

??