How to Create a macOS Big Sur Public Beta Installation USB

[tonymacx86]

Option 2: Clover Bootloader (Experimental- Now Working for Big Sur!)13. Download the standalone Clover bootloader v5.0 r5123 or higher package installer from the official downloads section.14. Install UEFI or Legacy Clover version using the USB (Install macOS Big Sur Beta) as the target.15. Navigate to /EFI/CLOVER/kexts/Other/ and add VirtualSMC.kext (or install using MultiBeast for Catalina)

Clover 5123 now works with Big Sur:

This version successfully loads BigSur and allows install and update.
Check new config-sample.plist. It contains default values for Quirks which are the most common settings.

Releases · CloverHackyColor/CloverBootloader

Bootloader for macOS, Windows and Linux in UEFI and in legacy mode - CloverHackyColor/CloverBootloader

github.com

 

[mifjpn]

I would say something that shouldn't be true under the rules here, so I won't say a lot if it's too specific. I apologize to the master here for the previous post violating the terms.
At least with Clover r 5123 (build 743b036) I have confirmed that this test works.
However, I paid attention to the selection of Clover's start entry that appears during the installation.
（Google if you are interested)

 

[Superbogey]

Clover 5123 now works with Big Sur:

This version successfully loads BigSur and allows install and update.
Check new config-sample.plist. It contains default values for Quirks which are the most common settings.

Releases · CloverHackyColor/CloverBootloader

Bootloader for macOS, Windows and Linux in UEFI and in legacy mode - CloverHackyColor/CloverBootloader

github.com

@tonymacx86 As of Oct 11, r5123 is still labeled as "Pre-release" on the "Releases" page.

 

[P1LGRIM]

r5123 is still labeled as "Pre-release" on the "Releases" page

So is Big Sur.

 

[Superbogey]

So is Big Sur.

Umm, the point is that Big Sur is clearly labeled as a beta OS while Clover r5123 is on the release page (even though it's labeled "Pre-release" right next to it) that one of your own mods didn't realize was a pre-release instead of a release. Most of the people discussing the issues with r5123 after DLing it don't realize that significant fact also, hence my comment to Tony.

 

[mifjpn]

Hope Tony can use Clover as an installer for everyone as soon as possible.
Is it okay to post the following? If it's not good, please erase it.

If you've had a hard time putting in Big Sur right now and don't want to erase it again and do this test, you can back it up.

You may be in trouble because you can't use the carbon copy cloner, but you can move it to another HDD (even NAS) using a USB stick called Clonezilla.

Originally it was made for Linux.

So it doesn't recognize Apfs, but in that case it backs up the partition as raw data. (Of course, restore)

Do you think it will take time because it is just a copy because it is treated as raw data?

The answer is no, it compresses the raw data properly and backs it up, so if you use less space, it will back up with less space.

It's not too difficult to use. You can find out how to use it on google.

（I'll write it separately so that Tony can easily erase my overstatement.）

 

[mifjpn]

The closest thing to creating a successful Clover EFI is to use Clover's "config.plist and Kexts", which now runs Big Sur.

And, just in case, I put vsmcgen = 1 in Boot Augs and tried it. (Imitation of that person famous for the Big Sur installer on OpenCore)

 

[mifjpn]

I will attach a reference EFI.（Clover r 5123-build743b036）
I think SMBIOS has changed to the recreated value so that it doesn't cause any problems.
But to use it in your environment, match the SMBIOS to your CPU and the USBmap in Kext-other to my motherboard, so match it to yours.
I want you to use it as a reference as above.

 

[mifjpn]

I will introduce the operation after booting with the USB installation stick.(The following may differ depending on the version. Confirmation with the latest version.)
1. Select ”Boot mac OS Install mac OS Big Sur Beta”
Use Disk Utility to erase the SSD you want to install. (Here, the name is BigSurBeta as an example.)
Select the installer as usual, select the SSD above and start the installation.
It will reboot automatically.
2. Select ”Boot mas OS Install from BigSurBeta”.
It will reboot automatically.
3. Select ”Boot mac OS X Install from BigSurBeta-Data via Preboot”.
It will reboot automatically.
4. Select ”Boot mac OS from BigSurBeta-Data via Preboot.”
(This choice seems a strange, but I couldn't boot without choosing it once. If you're trying it out in the future, please let me know if you have any suggestions.)
5. ”Boot mac OS from BigSurBeta”
It can be started with a normal Clover that is not a USB stick.
Sometimes it looks like it's stopped, but please wait for a while.

good luck!