iMac only boots via usb and cant make a efi

iMac only boots via usb and cant make a efi

When i boot my iMac via usb after installing the latest sonoma via latest Open core, it cant make a efi partition in the bios to boot from my Internal storage(FusionDrive) I‘ve tried pressing space in the bios but there isnt a efi option to boot from.

First photo shows up after pressing the power button.

Second photo after pressing space bar.

4th photo: ive already tried both drives for the install and on none of These the efi shows up(third drive/last drive is the usb drive)

5th photo after pressing on the first drive. (Even if didnt select the ssd it would show the same 209mb on the hdd)

Last photo is my problem, no efi…

Excuse my bad English❤️

submitted by /u/Soldmyhousefordrugs
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