Some questions:
- Are you currently on 12.1 or earlier beta of 12.2?
- If earlier beta of 12.2, did you encounter this problem when installed that version?
- Had anything significant changed between then and now? SIP, SecureBootModel, new software, new devices?
- At what step of the upgrade process does the crash occur? The log does not show a crash so are you sure there is a crash?
OK, thanks to
@Lensjocky and
@djx8605 for the suggestions. I upograded the BIOS to F21 and the model to iMac 20,2 and the COMPBINATION of both things allowed the upgrade to proceed flawlessly.
To answer
@CaseySJ I was on 12.2beta1 trying to go to beta 2.
The 12.2 beta 1 upgrade went smoothly with f5 and model 19,1
Nothing changed in between.
In the log once it gets to message: 0xE0000010 it just restart from boot in a cycle and keeps restarting if I choose MacintoshHD (with the installer) instead of my boot drive (which has a different name).
In any case now with f21 and iMac20,2 I was able to install well. We'll see in a couple of weeks waht happens with beta 3.
On last thing to consider is that after upgrading to f21 all my BIOS settings were wiped (silly me I did not save to disk), and I did not re-construct them yet as per instruction on page1.
But everything sees to work well and it upgraded so I'll tackle that tomorrow.
One problem now is that
@CaseySJ says in the first page that USB-C does not work with firmware above F5. Is that still true?
And we'll see in a couple of weeks what happens with beta 3.