How to download Big Sur on an unsupported Mac?

[dancojocaru2000]

Even if I enroll my MacBook Air 2012 in the public beta, Software Update in System Preferences doesn't find the Big Sur update, and I suspect this might be because my Mac is unsupported?

How can I download Big Sur in order to then use this micropatcher?

[Danzel-599]

Even if I enroll my MacBook Air 2012 in the public beta, Software Update in System Preferences doesn't find the Big Sur update, and I suspect this might be because my Mac is unsupported?

How can I download Big Sur in order to then use this micropatcher?

I can drop it and it's already patched.. You'll want to restore my image to you Flash drive and boot with OPTION key..

[dancojocaru2000]

Sounds good. Is it basically what you get after the installation?

[Danzel-599]

Sounds good. Is it basically what you get after the installation?

It's basically that I get after creating bootable flash installation.. Yup..

[dancojocaru2000]

That would be awesome!

[Danzel-599]

That would be awesome!

Okay! Nice! Just be patient! I'm gonna prepare the damage for you.. About an hour!
macOS 11 Big Sur Developer Beta 5 (20A5354i)

Regards!

[dancojocaru2000]

I apologise for being impatient. You can imagine how excited I am for trying Big Sur. Any status update? 😅

[Danzel-599]

I apologise for being impatient. You can imagine how excited I am for trying Big Sur. Any status update? 😅

I think about 30 minutes... Using WeTransfer... it's too slow :)

Prepare about 30 GB By the way on macOS Mojave
13-15 GB to Download files
13-15 GB Unzip them
After COMPLETELY unzip you can easily delete downloaded files from WeTransfer
You'll get 1 file (Image File)

[Danzel-599]

Here you are!

1. Install macOS Big Sur Beta.dmg.7z.001
2. Install macOS Big Sur Beta.dmg.7z.002
3. Install macOS Big Sur Beta.dmg.7z.003
4. Install macOS Big Sur Beta.dmg.7z.004
5. Install macOS Big Sur Beta.dmg.7z.005
6. Install macOS Big Sur Beta.dmg.7z.006
7. Install macOS Big Sur Beta.dmg.7z.007

Download this 7 parts
Then download an application which is called Keka
https://we.tl/t-xZBqzcaZwz

Open Keka and Drag&Drop this file to Keka and choose unzip
Install macOS Big Sur Beta.dmg.7z.001
Only this file Install macOS Big Sur Beta.dmg

Wait until the end -- after you get 1 file
So now you cal easily delete all 7 parts
Then open disk utility -- choose Flash Drive -- Completely format it
Name it Install macOS Big Sur Beta -- Format MacOS Extended (NOT APFS) -- scheme GUID

After erasing click Restore -- and choose the image you downloaded (Install macOS Big Sur Beta.dmg)

Hit Restore -- wait until the end done!

Start to Install
Boot from Flash
Open Terminal (in the Utilities menu), then type in
/Volumes/Image\ Volume/set-vars.sh
Hit Enter close terminal and choose Install MacOS!

NOTE!
MacOS 11 is too slow on external HDD..
At least you should you internal SSD..
Be careful!

Regards!

[dancojocaru2000]

Thank you very much!

[kommtzeitkonrad]

How can I download Big Sur in order to then use this micropatcher?

https://github.com/corpnewt/gibMacOS

[LukasMFR]

Even if I enroll my MacBook Air 2012 in the public beta, Software Update in System Preferences doesn't find the Big Sur update, and I suspect this might be because my Mac is unsupported?

How can I download Big Sur in order to then use this micropatcher?

I can drop it and it's already patched.. You'll want to restore my image to you Flash drive and boot with OPTION key..

May I ask you where you did find the image in the first place ?

[Danzel-599]

May I ask you where you did find the image in the first place ?

#22 last comment
Also image that I made already fixed you can get it & restore
You choose

Regards!