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macOS 11 Big Sur on Unsupported Macs Thread

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
apfelbaum said:
Thanks again for offering to help, here is a screenshot of my terminal. As recommended in the Readme from the
barrykn / big-sur-micropatcher I simply did drag and drop the micropatcher.sh file into the terminal window which is located in the big-sur-micropatcher-main folder in my user directory. Right after that I always drag and drop the USB-drive into the same window which is the Big-Sur install drive I created via the createinstallmedia command:

View attachment 944666

The drive is named Install macOS Big Sur Beta which is the name it got automatically after using the createinstallmedia tool and as also recommended in the Readme of the big-sur-micropatcher I did not change it. I also tried just using the micropatcher.sh command without specifying the path to the USB-drive but this also didn't help:
View attachment 944657

I tried this now on two different Macs multiple times, on my late 2012 iMac (I want to install the Big Sur public beta on) and a 2018 Mac Book Pro still running Catalina.

Any ideas what I am doing wrong or what I could try?

Thanks in advance :)
Click to expand...
You should try this, make sure Barry micropatcher file and USB “Install macOS Big Sur Beta” displayed on desktop.

  1. Open Terminal.
  2. Open barrykn / big-sur-micropatcher, drag and drop the micropatcher.sh file into Terminal.
  3. Drag USB “Install macOS Big Sur Beta” on desktop to Terminal.
  4. Press “Return”
 
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maxsp97 said:
You should try this, make sure Barry micropatcher file and USB “Install macOS Big Sur Beta” displayed on desktop.

  1. Open Terminal.
  2. Open barrykn / big-sur-micropatcher, drag and drop the micropatcher.sh file into Terminal.
  3. Drag USB “Install macOS Big Sur Beta” on desktop to Terminal.
  4. Press “Return”
Click to expand...
did you change to zsh as noticed in terminal?
 
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ribero said:
Ok thanks for the clarification. When you will be able to install BS I'm interested to know if you have to kill the process too.

Yes gfxcardstatus works well under Mojave/Catalina without killing any process but not in BS...
Click to expand...

@ribero Installed Big Sur now. Yes, in Big Sur, I have to kill the process too to change the gpu setting.
 
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apfelbaum said:
Thanks again for offering to help, here is a screenshot of my terminal. As recommended in the Readme from the
barrykn / big-sur-micropatcher I simply did drag and drop the micropatcher.sh file into the terminal window which is located in the big-sur-micropatcher-main folder in my user directory. Right after that I always drag and drop the USB-drive into the same window which is the Big-Sur install drive I created via the createinstallmedia command:

View attachment 944666

The drive is named Install macOS Big Sur Beta which is the name it got automatically after using the createinstallmedia tool and as also recommended in the Readme of the big-sur-micropatcher I did not change it. I also tried just using the micropatcher.sh command without specifying the path to the USB-drive but this also didn't help:
View attachment 944657

I tried this now on two different Macs multiple times, on my late 2012 iMac (I want to install the Big Sur public beta on) and a 2018 Mac Book Pro still running Catalina.

Any ideas what I am doing wrong or what I could try?

Thanks in advance :)
Click to expand...
 
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I am so done. I've tried so many different installers and I still get this:

objc[9367]: Class IASNightInstallSupport is implemented in both /System/Library/PrivateFrameworks/IASUtilities.framework/Versions/A/IASUtilities (0x7fff944e78e0) and /Applications/Install macOS Big Sur Beta.app/Contents/Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/IAESD.framework/Versions/A/Frameworks/IAInstallerUtilities.framework/Versions/A/IAInstallerUtilities (0x10fb47ac0). One of the two will be used. Which one is undefined.


objc[9367]: Class IASSystemInformation is implemented in both /System/Library/PrivateFrameworks/IASUtilities.framework/Versions/A/IASUtilities (0x7fff944e7a20) and /Applications/Install macOS Big Sur Beta.app/Contents/Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/IAESD.framework/Versions/A/Frameworks/IAInstallerUtilities.framework/Versions/A/IAInstallerUtilities (0x10fb47bd8). One of the two will be used. Which one is undefined.


/Applications/Install macOS Big Sur Beta.app does not appear to be a valid OS installer application.

Please, could someone help me?
 
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richiemouse said:
I am so done. I've tried so many different installers and I still get this:

objc[9367]: Class IASNightInstallSupport is implemented in both /System/Library/PrivateFrameworks/IASUtilities.framework/Versions/A/IASUtilities (0x7fff944e78e0) and /Applications/Install macOS Big Sur Beta.app/Contents/Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/IAESD.framework/Versions/A/Frameworks/IAInstallerUtilities.framework/Versions/A/IAInstallerUtilities (0x10fb47ac0). One of the two will be used. Which one is undefined.


objc[9367]: Class IASSystemInformation is implemented in both /System/Library/PrivateFrameworks/IASUtilities.framework/Versions/A/IASUtilities (0x7fff944e7a20) and /Applications/Install macOS Big Sur Beta.app/Contents/Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/IAESD.framework/Versions/A/Frameworks/IAInstallerUtilities.framework/Versions/A/IAInstallerUtilities (0x10fb47bd8). One of the two will be used. Which one is undefined.


/Applications/Install macOS Big Sur Beta.app does not appear to be a valid OS installer application.

Please, could someone help me?
Click to expand...
You may have other macOS Big Sur app. open
 
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working fine on Macbook pro Mid 2012 except wifi issue
 

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  • ‏لقطة الشاشة 2020-08-18 في 9.49.30 ص.png
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Hi!

My Mid-2012 MacBookPro works well, but loses WiFi if it hibernates, i.e if I close the lid, as others have reported.

However, the WiFi restarts correctly when I reboot the machine. I never have to re-send a command.

I would have thought that all these machines would behave the same?

Thanks for the "BigSur IvyBridge beta3 prelinkedkernel fix.command.zip" but I think I will leave my machine as is, because rebooting occasionally is hardly a great problem!!

Thanks to everyone who has helped with this thread.

Screen Shot 2020-08-18 at 10.52.58 AM.png


IB
 
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Work very well .....mid 2012 13"
Anybody knows when next release ?
 

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  • Screen Shot 2020-08-18 at 20.28.28.png
    Screen Shot 2020-08-18 at 20.28.28.png
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Phillthedrill said:
If I have a mid 2010 macbook pro 6,2 dual core i7, boot room 96.0.0.0.0, SMC 1.58f17 with both an Intel HD graphics built in and Nvidia GeForce GT 330M PCIe, it's still not going to be able to have BigSur installed because of the Intel Dual-core i7 limitation, right? It has Catalina installed right now from DosDude.
Click to expand...
What do u mean by i7 Limitation?
 
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@jackluke today will be available BS beta 5. I'll try to skip stage 3 and select "Big Sur data" from Startup disk installing it on Macmini 2010 internal SSD partition, hoping that your prekernel fix for beta 3 will be still working :)
 
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It's not showing on my macPro 5,1 with OpenCore and EFI switched an hour ago to be spoofing a iMac Pro1,1 with developer account.

I think it hasn't yet been released ? - doing this for all the previous beta's has worked immediately.
 
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Out of curiosity, would anyone around here perhaps know, where to find that bigsur icon? I can find loads using search for icns (system files included), but not the one from "About this Mac"
Screenshot 2020-08-18 at 21.20.31.png
 
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can someone link the latest recommended instructions to install. I am looking to make an install usb and run on external drive to test. thanks
 
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amaze1499 said:
Out of curiosity, would anyone around here perhaps know, where to find that bigsur icon? I can find loads using search for icns (system files included), but not the one from "About this Mac"
View attachment 945304
Click to expand...
try this
- go to Applications/Utilities/System Infomation.app
- right click and Show Package Contents
- Contents/Resources. find the file entitled SystemLogo.tiff.
 
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