macOS 11 Big Sur on Unsupported Macs Thread

Status
The first post in this thread is a WikiPost, and can be edited by anyone with the appropriate permissions.

jackluke

macrumors 68030
Jun 15, 2018
2,681
5,848
CatalinaOTAswufix.app (based on @Czo VMMFaker dylib) let to download a full "Big Sur" installer (also on a 2012 Mac or any previously supported Catalina Mac), anyway I advise only to download, but don't try to install it for now.

Weirdly is still indicated as macOS 10.16 not macOS 11 .
 

Attachments

Alex-Microsmeta

macrumors regular
Jul 14, 2018
164
240
Rome
This thread will be used to discuss advancements in getting macOS 11 Big Sur running on unsupported Macs.

Which Macs can run macOS 11 Big Sur?
  • MacBook (2015 or newer)
  • MacBook Air (2013 or newer)
  • MacBook Pro (Late 2013 or newer)
  • Mac mini (2014 or newer)
  • iMac (2014 or newer)
  • iMac Pro (from 2017)
  • Mac Pro (2013 or newer)
We neead a miracle by @dosdude1 and @ASentientBot :cool:


Big Sur.png
 

ASentientBot

macrumors 6502a
Jun 27, 2018
773
2,953
SkyLight.framework
For those trying to unzip the package I linked, you'll need to use pkgutil --expand-full and then move the DMG to Contents/SharedSupport/SharedSupport.dmg in the application. Then you can use createinstallmedia as usual. It needs about 11 GB this time around.

@Argyboy there is no confirmation yet that the OS does indeed use AVX in core OS files. It may be like Catalina where it's only used in a few places. We will see shortly.
 
Last edited:

Argyboy

macrumors regular
Feb 26, 2017
118
65
Dublin, Ireland
For those trying to unzip the package I linked, you'll need to use pkgutil --expand-full and then move the DMG to Contents/SharedSupport/SharedSupport.dmg in the application.

@Argyboy there is no confirmation yet that the OS does indeed use AVX in core OS files. It may be like Catalina where it's only used in a few places. We will see shortly.
That's good news, thanks. I guess maybe the Intel 4000 graphics might be the sticking point but as I'm no expert, I'll leave it in much more capable hands. Looking forward to seeing how it develops!
 

jackluke

macrumors 68030
Jun 15, 2018
2,681
5,848
Still downloading "Big Sur" OTA installer, estimated time 10 hours very slow, so I guess to retry tomorrow, anyway if booting the kernel still allow SSE4.1 , using "Big Sur" on unsupported Mac is still feasible.

Meanwhile I attach my OTA distribution file where can notice the "Big Sur" supported board-id and machines.
- - Post merged: - -

The installer boots, which is encouraging in terms of AVX not being required for core stuff.
View attachment 926071

It's structured quite differently though, so new installer patches may take a bit.
Amazing work as always @ASentientBot !
 

Attachments

SGN

macrumors newbie
May 29, 2018
7
13
Yes, they do get iOS 14. iPad Air 2 came out in 2014, I still have two in daily use at my house (kids), now that is incredible.
Yeah, I suspect apple is dropping support either for the increased graphics performance or just because it requires too much work to make it work. Although lazyness can be good, in most situations it's just bs and i really hope you guys can make it work and, maybe even more important, it will run properly on my 2012. also, doing some research to 2013 macbook pro's, **** me! 500-650 pounds just for a refurbished one? that's crazy!
 
Status
The first post in this thread is a WikiPost, and can be edited by anyone with the appropriate permissions.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.