Catalina 10.15.5 upgrade to Big Sur 11.1 error: big sur install “quit unexpectedly”

Hello all,

I've searched extensively for this for 2 days and cannot find a solution to it anywhere.

The setup downloads fine, but as soon as I accept the terms and conditions, then select which drive I want to install to, the installer simply quits, and provides the following message: "big sur install quit unexpectedly. It then asks if I want to reopen the application. If I do, I get the same result.

I also get the same result by creating and booting from an install media USB with Big Sur 11.1

I'm running OC 0.63 and my setup can be found below.

i7 9700k

Gigabyte z390 Gaming X bios F10h

32gb DDR4

Radeon 6800 xt

Archer T6e Wi-fi (BCM 4360 I think).

Any help would be greatly appreciated as I;m scratching my head over this one.

submitted by /u/Jobman212
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