SonicRiff

I found that workaround too and it's working. But I think that Jake lo's trick is the good way to go.

@jake Lo: Yes !!!

Thank you Jake Lo for the updated guide. Now it's possible to boot on the USB Installer But when the install has completed, the computer restarts, I choose to boot on USB and then select Macintosh SSD. I have an error: Cannot find /System/Library/Kernels/kernel