Stuck on installation script errors [MSI MAG Z690 TOMAHAWK WIFI, i7-12700F]

Hi,

I'm trying to install Big Sur (11.6.8), and getting desperate about making it work...

I followed this guide:


I'm stuck during the USB installer on with error "lowest level disk is not mounted" and "generation from SMC report as 2"

I have:

  • MSI MAG Z690 Tomahawk Wifi
  • i7-12700F
  • Samsung 2TB 980 Pro NVMe
  • MSI GT 710

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Author: Basso