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I solved the problem. I made he I225-V Ethernet controller on my Ausus z-490 board working by following open cores guide: https://dortania.github.io/Getting-Started-With-ACPI/Universal/dmar-methods/manual.html#preparation NO AppleIGC or e1000=0 necessary. I turned on Vt-d in my bios. That did...

UPdate: Thank you Cosmic. I have followed all the steps you have suggested and I have found out the problem. I am installing Sonoma 14.4 and as I discussed I had to use AppleIGC.kext to make the ethernet work (I also used as booting e1000=0). And it all works perfectly if booting from a USB...

What could be the reason that the same bootable drive would use a different EFI when booting from the SATA port than from a USB port? Where could the older EFI be stored that will get used when booting from a SATA port? Could it have to do with an APFS Snapshot? Is an older EFI stored...

Thank you. I was not aware of this.

I am attaching the log file somehow pointing to errors with boot-signature and boot-mage-key. I do not know if this points to the error.

Resetting the Nvram did not help. There must be something else that prevents the bootable disk from correctly loading from the SATA port vs the USB port. It appears to be loading the wrong EFI partition (but not so when booting from the USB port). Very strange. Any thoughts? Could it have to do...

I have successfully created a Sonoma bootable drive. I can boot it successfully through a USB port without any issues (meaning without any installer; I have successfully copied the EFI to the actual new Sonoma bootable drive). When I connect the drive through my internal data port the drive...