@lobomarinho said in Dell Optiplex 5490, boot but o network interfaces found:

My Dell Optiplex 5490 detect server but then give me a error

BIOS file name is “undionly.kpxe

Just reading between the lines here. What you have said are in conflict. I would think the optiplex 5490 is a uefi only system. The undionly.kpxe program is a bios only boot loader. You can’t boot undionly.kpxe on a uefi based computer.

Second part and more on point is. Do you get to the FOG iPXE menu? If no then you need to update iPXE. If yes, then update the FOG Linux kernel (FOG WebUi -> FOG Configuration -> Kernel update. Update to the 5.15.(latest) to get the newest hardware support. as @LLamaPie mentioned.