macOS 11 Big Sur on Unsupported Macs Thread

[rapsong11]

I actually do have a late 2013 iMac so I would be grateful if you explained the steps that have to be followed in order to have it working. Thank you very much!

see my 1st post here: https://forums.macrumors.com/thread...unsupported-macs-thread.2242172/post-28596181

 

[cwfalconfootbal]

did you do a fresh install then?
[automerge]1592939486[/automerge]
did you do a fresh install?

Here's my full guide on how to install Big Sur on A1425 and probably most devices.

View attachment 926754

https://www.reddit.com/r/BigSurPatcher/comments/hekcnv

 

[highvoltage12v]

Yes none of my 3 Mac Pro 5,1's will wake from sleep
Panic screenshot here: https://forums.macrumors.com/thread...unsupported-macs-thread.2242172/post-28595938

 

[brandonsierra]

We need a GUI that can automatically Run the commands for us

I'll work on one via Xcode

 

[libneko]

Tried mounting big sur root partition using installer USB, but all the changes are made are not present in "live" system, but I can see it when booted from USB. Wtf.
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Any known way to mount root partition using USB drive?

 

[Kriter]

Experiencing the same issues as you.
I'm about to revert back to Catalina.

Tried mounting big sur root partition using installer USB, but all the changes are made are not present in "live" system, but I can see it when booted from USB. Wtf.
[automerge]1592939901[/automerge]
Any known way to mount root partition using USB drive?

 

[justperry]

I have just uploaded a tutorial video for the basic steps to install Big Sur on an unsupported Mac, which can be found at
the below link. Premieres in 12 mins from the time of this message!

Tutorial video

There's a mistake in your video, you drag the file to the Users Folder, should be in the Home Folder as per instructions giving here and elsewhere.

Tidbit, installer files are in a Zip format...first time I see this on a mac., see screenshot.

 

[highvoltage12v]

Yes none of my 3 Mac Pro 5,1's will wake from sleep
Panic screenshot here: https://forums.macrumors.com/thread...unsupported-macs-thread.2242172/post-28595938

Okay so the Catalina Airport BCM94360 kext beaks sleep on the Mac Pro 2010, ill go recheck other Macs, but my 2011 iMac will sleep without issue. I have a 2015 Airport card in my 2010 Mac Pro 5,1.

 

[Adamscomputerrepair]

I can say with almost 100% assurance the really simple installer hack doesn’t work on the mid 2010 MacBook Pro. I’ve tried in High Sierra, Mojave and Catalina. Every time the patch is loaded, the installer app just crashes.
With that being said, I do have a hackintosh and I’m strongly considering trying to do an install using it (won’t have supported graphics anyway seeing as I got screwed when they dropped Nvidia but oh well.)

 

[Ophirk31]

Hi, after typing in terminal the "launchctl setenv DYLD_INSERT_LIBRARIES $PWD/Hax.dylib" command
in my iMac 2010 GTX 770m I couldn't open any application including the "install Mac OS beta"
please help
thank you

 

[cwfalconfootbal]

on the hackintosh discord they said don't even bother

I can say with almost 100% assurance the really simple installer hack doesn’t work on the mid 2010 MacBook Pro. I’ve tried in High Sierra, Mojave and Catalina. Every time the patch is loaded, the installer app just crashes.
With that being said, I do have a hackintosh and I’m strongly considering trying to do an install using it (won’t have supported graphics anyway seeing as I got screwed when they dropped Nvidia but oh well.)

 

[apostmi]

I can say with almost 100% assurance the really simple installer hack doesn’t work on the mid 2010 MacBook Pro. I’ve tried in High Sierra, Mojave and Catalina. Every time the patch is loaded, the installer app just crashes.
With that being said, I do have a hackintosh and I’m strongly considering trying to do an install using it (won’t have supported graphics anyway seeing as I got screwed when they dropped Nvidia but oh well.)

I had that issue on Mojave, then updated to Catalina and it was fixed but idk why it doesn't work for you

 

[hintzsche]

When I had this problem in the past (Mojave), it was a bad extension (from an old iPad-as-secondary-display program in my case) that it couldn't boot past. Can you boot without 3rd-party extensions (hold shift during boot)? If that does work, you might want to move any extensions in /Library/Extensions to somewhere else harmless (or delete them if you don't care) so it can't load them. Since this was Mojave in my case, I think some of mine were so old, they were in /System/Library/Extensions. Catalina, with it's read-only mount volume might be different. Should have moved them at least.

I tried to boot with shift pressed but then i get the no entry sign again

 

[K two]

Some will find this useful? https://mrmacintosh.com/how-to-install-macos-big-sur-beta-on-vmware-fusion-parallels-desktop/

 

[Adamscomputerrepair]

I had that issue on Mojave, then updated to Catalina and it was fixed but idk why it doesn't work for you

Idk I’ll try again on Catalina. It’s gotta be something on my end. I’m sure of it

 

[brandonsierra]

There it is, im gonna need some good coders to code the buttons for me

My Discord DM's are open at Brandon ROBLOX Scripter#1821

Twitter: @BrandonScripter

 

[libneko]

View attachment 926775

There it is, im gonna need some good coders to code the buttons for me

My Discord DM's are open at Brandon ROBLOX Scripter#1821

Twitter: @BrandonScripter

Like... do all the work?

 

[brandonsierra]

I made the design you can code the buttons if you wish

 

[GameRoof]

There's a mistake in your video, you drag the file to the Users Folder, should be in the Home Folder as per instructions giving here and elsewhere.

Tidbit, installer files are in a Zip format...first time I see this on a mac., see screenshot.

View attachment 926762

Thanks for telling me, I have noted it in the video description and pinned a comment now.

 

[Elonmusk]

Installed it on my 2013 iMac and wifi works perfectly fine!

 

[mrnotch]

Installed it on my 2013 iMac and wifi works perfectly fine!

How did you do it?

 

[brandonsierra]

What is UpdateBrain.zip?

 

[mrnotch]

When I run the program and am trying to select my hard drive to install big sur, it says 'This operation couldn't be completed. (BIErrorDomain error 3.)' How do I fix that? I've followed all the steps before correctly.

 

[rumormiller]

On "Big Sur beta 1" unsupported but Catalina supporter Mac:

- HD4000 is working will full Metal acceleration, apple also don't removed their kext

- Nvidia Kepler (example GT 650M) is working with full Metal acceleration (but not sure if apple removed their kext)

- Making a wifi card upgrade that uses the AirPortBrcmNIC.kext will work on "Big Sur"

from a supported Catalina Mac running this: kextstat | grep AirPort

if the output is com.apple.driver.AirPort.Brcm4360
this is not more a supported "Big Sur" Wifi card.

My late 2013 iMac has

com.apple.driver.AirPort.BrcmNIC (1400.1.1)

So that's not the reason for dropping support then

 

[highvoltage12v]

Installed it on my 2013 iMac and wifi works perfectly fine!

What things did not work? Audio? Ethernet? Anything, I'm very puzzled why Apple dropped the late 2013 model.