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X299 Big Sur Support

Joined
Apr 17, 2012
Messages
205
Motherboard
Asus X299 Prime Deluxe
CPU
i9-7960x
Graphics
Vega 56
X299 trouble

Hello there, I've just tried to make a clean install, but after dozens of tries with Dortania's guide and this thread, I cannot reach the Big Sur installation GUI.

It seems that everything loads well, but errors will appear with:

“disks3s3 device is write locked". The USB stick is a 16Gb USB 2, on a USB 2 port (I've tried them all and 3 different sticks).

In the end there’s a failed to bootstrap path error on many items :

View attachment 519100

I try to run on an ASUS X299 DELUXE and the Bios version is 3301.
I only have one ssd plugged and nothing bu the installation stick and the keyboard.

If someone skilled enough could tell me what I'm doing wrong, I'd be thrilled.
Here is my EFI from the same motherboard and CPU.
This is on OC 0.6.6 so you'll probably want to update it.
As always, you will need to regenerate a new serial and all of that.

Also, I'm fairly certain you can't use a 10 series NVidia cards past High Sierra? Unless I'm missing something...
 

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  • EFI EG BIG SUR.zip
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Joined
Dec 8, 2017
Messages
19
Motherboard
Asus Prime X299 Deluxe
CPU
i9-7960X
Graphics
RX 6800 XT
Mac
  1. Mac Pro
Classic Mac
  1. Apple
Here is my EFI from the same motherboard and CPU.
This is on OC 0.6.6 so you'll probably want to update it.
As always, you will need to regenerate a new serial and all of that.

Also, I'm fairly certain you can't use a 10 series NVidia cards past High Sierra? Unless I'm missing something...
Thanks Egroys, I'm trying this now, we'll see…
(About the graphic card, it's a 6800xt, my signature needs an update!)

[EDIT]
Unfortunately, it didn’t work, I get stuck on 3 « AppleKeyStore » error:
842C6214-77F1-42A0-825C-6396F0476AC9.jpeg


What is your BIOS version and what guide did you follow to configure it, Dortania’s or KGP’s ?

Thanks,
J
 
Last edited:
Joined
Apr 17, 2012
Messages
205
Motherboard
Asus X299 Prime Deluxe
CPU
i9-7960x
Graphics
Vega 56
Thanks Egroys, I'm trying this now, we'll see…
(About the graphic card, it's a 6800xt, my signature needs an update!)

[EDIT]
Unfortunately, it didn’t work, I get stuck on 3 « AppleKeyStore » error:
View attachment 519174

What is your BIOS version and what guide did you follow to configure it, Dortania’s or KGP’s ?

Thanks,
J
Originally KGP and then updated to OC with Dortania and the help of this community.
I am on BIOS 3301. Rock solid over here.

Maybe has something to do with the 6800?
Try to disable my Vega 56 SSDT?
 
Joined
Dec 8, 2017
Messages
19
Motherboard
Asus Prime X299 Deluxe
CPU
i9-7960X
Graphics
RX 6800 XT
Mac
  1. Mac Pro
Classic Mac
  1. Apple
Originally KGP and then updated to OC with Dortania and the help of this community.
I am on BIOS 3301. Rock solid over here.

Maybe has something to do with the 6800?
Try to disable my Vega 56 SSDT?
Hi Egroys, I've tried and retried, nothings different. I'll let this down for now and stick with windows until I get an rx580 or Navi card. Thanks for your help!
 
Joined
Apr 18, 2011
Messages
1,268
Motherboard
ASUS Pro WS X299 Sage II
CPU
i9-10980XE
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W5500
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Hi Egroys, I've tried and retried, nothings different. I'll let this down for now and stick with windows until I get an rx580 or Navi card. Thanks for your help!

Have you tried making a 11.4 installer (official release isnt out yet but RC is)? or installing big sur on a real mac then copying it over?

My Base-EFI and BIOS settings should get you started
 
Joined
Apr 17, 2012
Messages
205
Motherboard
Asus X299 Prime Deluxe
CPU
i9-7960x
Graphics
Vega 56
Hi Egroys, I've tried and retried, nothings different. I'll let this down for now and stick with windows until I get an rx580 or Navi card. Thanks for your help!
What about your BIOS settings?

Also djlild7hina's repository is brilliant and helped me when I was transitioning from KGP era Clover to OC.
 
Joined
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I know i said i won't post here anymore, but now that 6900XT works thought I'd share this here. Have not touched .4 yet until the final is out, and I have to add this to the waterloop and remove the Radeon VII.

Screen Shot 2021-05-23 at 6.10.32 PM.png

Screen Shot 2021-05-23 at 6.12.49 PM.png
Screen Shot 2021-05-23 at 6.08.17 PM.png
 
Joined
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1,646
Motherboard
Gigabyte B550 Vision D
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Ryzen 5900X
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RX 6800
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  4. MacBook Pro
  5. Mac mini
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Just wanted to let everyone know that I've come across a major bug with AMD's latest Radeon Win10 drivers.
Whilst testing out the install on both my Intel-based systems using their latest driver, the AMD installers simply will not install either for my RX6800 nor RX550. It's until I reverted to installing with an early Nov 2018 installer (plus manually updating the AMD device driver in Device Manager) that it worked for my systems.
 
Joined
Dec 8, 2017
Messages
19
Motherboard
Asus Prime X299 Deluxe
CPU
i9-7960X
Graphics
RX 6800 XT
Mac
  1. Mac Pro
Classic Mac
  1. Apple
What about your BIOS settings?

Also djlild7hina's repository is brilliant and helped me when I was transitioning from KGP era Clover to OC.
Thanks, both; I could borrow a Radeon VII and everything went well. after replugging the Gigabyte 6800xt (basic edition), all became a mess. I’ll try with the 11.4 RC right away;)
 
Joined
Apr 24, 2013
Messages
49
Motherboard
ASUS WS X299 SAGE/10G
CPU
i9-10980XE
Graphics
Radeon VII
I know i said i won't post here anymore, but now that 6900XT works thought I'd share this here. Have not touched .4 yet until the final is out, and I have to add this to the waterloop and remove the Radeon VII.

View attachment 519497
View attachment 519496View attachment 519498
Aloha izo! Awesome news and glad to see you back on this thread! Do you think the 6900xt will come down in price by the end of the year? Dishing out $2000+ for a msrp $999 card is hard to swallow. My Radeon VII is still doing its job but getting new toys is always enticing. Also, if you have updated your EFI with the recent build of 6.9 opencore, would you mind sharing? Thank you.
 
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