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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.

Tutorial:

This tool is very easy to use, it does everything practically by itself and it is not necessary to use the Terminal. You open the application, follow the steps, create the patched USB installer, boot from it, install Big Sur and that's it. Once the installation is finished, in the applications folder you will find the app "Patched Sur", and it gives you the option to apply the "Patch Kexts" to solve, for example, the Wifi, USB, ... once installed, restart and that's all functional.
 
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sinbad21 said:
And you don’t say 29b28 is the Big Sur release, it’s not. I installed it for nothing.
Click to expand...
Huh, what are you on about?

1. 29B28 ??? It's 20B28 for RC2 and 20B29 for Big Sur released on Thursday 12 November.
2. I did not say to install anything, you installed it.
3. On 20B29, I said that it's has been mentioned multiple time, why link to an article which 1. Has no link 2. We all already know for hours/half a day.
 
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Jordillav22 said:

This tool is very easy to use, it does everything practically by itself and it is not necessary to use the Terminal. You open the application, follow the steps, create the patched USB installer, boot from it, install Big Sur and that's it. Once the installation is finished, in the applications folder you will find the app "Patched Sur", and it gives you the option to apply the "Patch Kexts" to solve, for example, the Wifi, USB, ... once installed, restart and that's all functional.View attachment 1664460
Click to expand...
awesome!

Will this erase all data from my FusionDrive or will it keep it?
 
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I downloaded the Big Sur InstallAssistant.pkg from the link in post #6118.

In Terminal I tried to create a bootable installer with the createinstallmedia command as directed on the apple support page linked in barrykn's instructions, but I get "command not found."

Any ideas?
 
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Screen Shot 2020-11-13 at 11.40.10 AM.png


Does this look right. Everything is working and I am able to boot both into my Catalina install and Big Sur install. Do I need to clean up this snapshot volume?
 
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LOL. @Dosdude.

I don't know why you don't feel like a patcher this time. I don't care either. The main thing is to open a forum thread immediately after the Big Sur presentation and now stand there and say: "Stupid, there is no patcher". But it's good that others are hanging in this time. Don't get me wrong, I'm not expecting anything here and your former work was great. I am surprised that nothing happens this time. Well, it doesn't matter.
 
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MrWeenus said:
Can anyone with a 2012 Mac and integrated graphics confirm that their screensaver (or any other 3D intensive task) does not stutter?

Please do the following:
1. Select Drift as your screensaver
2. Preview it.

Notice if there are any stutters or if the motion is smooth.

MacBook Pro Retina 2012 15" stutters like hell in both games and 3D applications.
Click to expand...
Just installed Big Sur on Mac mini 2012 (i5/16Gb/HD4000/SSD) and Drift stutters. Also the whole interface is a bit laggy and unresponsive: Dock stutters as well as dragging the windows around the screen, while the scrolling in Safari/Chrome is smooth. Will it always be like that or there is a hope for improvement in the future?
 
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Cloudmaker said:
Just installed Big Sur on Mac mini 2012 (i5/16Gb/HD4000/SSD) and Drift stutters. Also the whole interface is a bit laggy and unresponsive, while the scrolling in Safari/Chrome is smooth. Will it always be like that or there is a hope for improvement in the future?
Click to expand...
Did you JUST install it? On initial install last night, got a notification saying that the machine performance would improve after it indexed or did something or other. Mac Mini 2012 i7/16GB/HD4000/SSD+HD. I don't see any lagginess in the OS/interface.
 
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k.alexander said:
Did you JUST install it? On initial install last night, got a notification saying that the machine performance would improve after it indexed or did something or other. Mac Mini 2012 i7/16GB/HD4000/SSD+HD. I don't see any lagginess in the OS/interface.
Click to expand...
Yeah, just did it. Well, I hope graphics performance will improve, Spotlight is being reindexed, fresh system and so on. Will see.
 
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lewolf said:
I downloaded the Big Sur InstallAssistant.pkg from the link in post #6118.

In Terminal I tried to create a bootable installer with the createinstallmedia command as directed on the apple support page linked in barrykn's instructions, but I get "command not found."

Any ideas?
Click to expand...
createinstallmedia is not a command on its own. In Barry's instructions, click on the highlighted phrase and it should take you to an Apple support page.

  1. Use createinstallmedia as usual to create a bootable USB stick with the installer and recovery environment, as you would on a supported Mac. (This patcher is easier to use if the installer USB stick is not renamed after createinstallmedia is used, but it can still work if the USB stick has been renamed.)
(In Barry's Readme, the paragraph is number 5, but Safari has changed that.)

The actual command is something like this:

sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSurPatcher

The BigSurPatcher name depends upon what you defined.
 
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nitinnk said:
guys sorry, is it already possible to install the GM of big sur on macbook pro mid 2012? if yes, where can I find the dmg and the hack? still has wifi problems?
Click to expand...
Read the last few pages, start up from the page where Big Sur is released from, aka yesterday.
Sorinut said:
Can my 2012 cMBP be updated from Mojave to Big Sur without installing Catalina? I went back to Mojave because it would never hibernate with Catalina. Hopefully that's fixed.
Click to expand...
Yes
PalError said:
Can you link me the instructions ?
Click to expand...
Read the last few pages, start up from the page where Big Sur is released from, aka yesterday.
ikokol said:
Hi all and sorry for my stupidity, but I cannot seem to find the link to the download/instructions. Anyone pls kindly share them? Thanks guys!
Click to expand...
Read the last few pages, start up from the page where Big Sur is released from, aka yesterday.
k.alexander said:
Successful install last night on my Mac Mini 2012!

Funny, hours of fighting with it before I figured out my thumb-drive was crap, put installer on a 2.5" portable HD and everything was smooth as butter. Installed ON TOP of my Catalina install, having performed a SuperDuper backup of my OS drive first. Everything works great!

WIFI: One question re WiFi. Seems like it takes forever to find my 5Ghz network, and prefers and defaults the 2.4Ghz network instead, even though the 5Ghz is set up as a higher preferred network in Network Settings. But not even that, it really takes a while to even find the 5ghz network. Curious, what exactly does mojave-hybrid WiFi patch install? Is it Mojave wifi "drivers"? Or something else?

@Barry K. Nathan - YOU ARE THE BEST!



View attachment 1664306
Click to expand...
Just delete the 2.4 GHz wifi network, that's what I did.
lewolf said:
I downloaded the Big Sur InstallAssistant.pkg from the link in post #6118.

In Terminal I tried to create a bootable installer with the createinstallmedia command as directed on the apple support page linked in barrykn's instructions, but I get "command not found."

Any ideas?
Click to expand...
Use google or
/Applications/Install\ Macos\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/***
*** = Your disk label

Mine is SSD so for me it would be

/Applications/Install\ Macos\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/SSD


If your Disklabel has a space in it like in Macintosh HD then use

/Applications/Install\ Macos\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Macintosh\ HD
 
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iMac-Oldschool said:
createinstallmedia is not a command on its own. In Barry's instructions, click on the highlighted phrase and it should take you to an Apple support page.

  1. Use createinstallmedia as usual to create a bootable USB stick with the installer and recovery environment, as you would on a supported Mac. (This patcher is easier to use if the installer USB stick is not renamed after createinstallmedia is used, but it can still work if the USB stick has been renamed.)
(In Barry's Readme, the paragraph is number 5, but Safari has changed that.)

The actual command is something like this:

sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSurPatcher

The BigSurPatcher name depends upon what you defined.
Click to expand...
Thank you for the reply. I figured it out. You have to open the InstallAssistant.pkg to create the Install MacOS Big Sur installer in the applications folder. I had to do this twice before the command line with createinstallmedia would work. I don't think the command recognizes the InstallAssistant.pkg, only the Install MacOS Big Sur installer.
 
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During install I got to the point where it asks for my iCloud account and was left with this tiny window that I can’t get passed, even with tabbing around with the keyboard. Should I have waited to connect with iCloud?

Btw, I downloaded Big Sur from Apple this morning and that's the image that I used. Maybe that is the issue?

DBC268FF-83A6-46BB-85F4-88600189A8CE.jpeg
391962A2-A634-43FC-BB49-690B3EF0FB12.jpeg
 
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Sorry for a question, but is there another way round - to make OS believe a specific mac is unsupported for Big Sur. I do not want to install it on my Mac 2018 yet, however Apple is trying hard to push the update notifications...
 
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k.alexander said:
Did you JUST install it? On initial install last night, got a notification saying that the machine performance would improve after it indexed or did something or other. Mac Mini 2012 i7/16GB/HD4000/SSD+HD. I don't see any lagginess in the OS/interface.
Click to expand...
Jordillav22 said:
above, in comment 6130, I have put an app that does everything automatically, and it also downloads the Big Sur installer.
Click to expand...
oops I got an error Creating Install Media = "Error -69888 couldn't unmount disk" - I'm not sure if it's frozen now or is it continuing?
1605290933283.png
 
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