Hi again,
So further to my Ventura build of some months ago (in this thread) which has been running happily (apart from the fairly often boot faliures which usually clear after a reboot or two, oh and Windows occasionally deciding not to appear in the bootloader disk list), I've been trying to update from Ventura to Sonoma. Thankfully I'm well prepared in case of upgrade faliure so it's not a big deal (yet) that it's not been successful. I'm just perplexed as to why.
So I firstly updated Opencore to the latest version, of course (now the EFI folder appears as a boot option and won't go away no matter what I do, but never mind), then my first attempt was a standard 'in-place' update using the Install Sonoma app. This naturally failed; the first reboot led to a static "white apple logo on a black background" with no progress bar, and then all attempt to boot into MacOS after that failed and I had to restore (by reinstalling Ventura from the recovery partition).
My second attempt was by creating a bootable Sonoma update USB stick, following the instructions on this very forum, and copying my trusted-and-true EFI folder from my main MacOS disk's EFI to the USB's EFI. This also failed in an identical manner to the first; back to the frozen apple logo again when I tried to boot.
What elementery (or complex) detail could I be missing?
Edit: forgot yet again that I could boot verbose and see the error(s); attached.
(Yes I know it mentions an invalid Ventura WiFi kext, I assumed that if i was able to install Sonoma at all, then I'd sort out those kexts afterwards. What i'm concerned with was being unable to even start the installation at all)