I tried to boot with Legacy/Bios and i have an error, i didn’t can start the FOG iPXE menu. After that i changed option 067 in my dhcp. I has replace ipxe.efi by undionly.kpxe and it work !!!
I put the background and it work in Legacy/Bios for me !
I have a last question, when i up/receive my image, can i put the uefi ?
Thank You very much !! I think this ticket is solved
Edit : I’m sorry @Quazz I did’nt see you message. I didn’t trie this solution I will test on the next computer !