UPDATE! Apple Silicon = An error occurred failed to personalize when Installing Big Sur!

UPDATE! Apple just released a new support document that talks about the problem and provides two different fixes!

https://support.apple.com/en-us/HT211983

UPDATED NEW STEPS!
Step 1 - create a macOS Big Sur Full installer usb!
   • Create a bootable macOS Big Sur USB i...  
Boot your Apple Silicon Mac to that USB drive then erase and reinstall Big Sur.

Step 2 - Use resetpassword macOS recovery to trigger "Erase my Mac" function to reinstall macOS.

If you try to reinstall macOS on your new M1 Apple Silicon Mac that still has the factory build of macOS 11.0 (20A2411) you will get an error. An error occurred preparing the update. failed to personalize the software update. Please try again. The issue requires a 2nd Mac to fix! When the macOS is reinstalling the Mac will attempt to personalize the version that is being installed. You will get this error.

Main Article
https://mrmacintosh.com/reinstalling-...

New Article How to reinstall macOS on your Apple Silicon Mac
mrmacintosh.com/how-to-reinstall-macos-on-your-apple-silicon-mac-everything-you-need-to-know/

An error occurred preparing the update. failed to personalize the software update. Please try again.

This specific version of macOS Big Sur 11.0 (20A2411)

The version shipped with brand new M1 Macs looks to be

Apple Silicon Mac Mini
Apple Silicon MacBook Air
Apple Silicon MacBook Pro 13"

macOS Big Sur 11.0 (20A2411)

Looking at macOS Big Sur’s build timeline, it seems that this build falls in around macOS Big Sur 11.0 Beta 10.

Big Sur 11 Beta 11.0.1 (20B5012d) Beta 1 – 10/28/20
macOS Big Sur 11.0 (20A2411) = Apple Silicon Factory Shipping version
Big Sur 11 Beta 10 (20A5395g) – 10/14/20

The issue seems to be only related to this specific build version. No reports of this happening after updating to macOS Big Sur 11.0.1 (20B29)

Links
https://MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins

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