Hi everybody, I’m trying to boot SmartOS from a UEFI only system with iPXE. But I get Could not select: Exec format error (ipxe.org/2e008081). It seems the way suggested to boot SmartOS with iPXE only works on MBR systems or when there is a legacy BIOS mode. Has anybody managed to boot SmartOS on a UEFI only system with PXE?

Try the Triton branch of iPXE? github.com/TritonDataCenter/ipxe We boot UEFI Triton CNs with that all the time.

danmcd: It works! Thanks so much!

Phew. Good to know. Stock iPXE doesn't cope with multiboot2 which illumos needs. Longer term that may change, but right now you need SOMETHING that'll construct the multiboot2 space for the kernel to bootstrap, and stock iPXE doesn't do that.

Inconveniently, pretty much _all_ ipxe has a really slow / failed transfer rate when pulling kernel/boot image on some hardware. Inconveniently, my example of this problem also has the wacky disk subsystem problem.

I know their raising of the TCP buffer size caused severe slowdown (bufferbloat maybe?), and we had to undo it in Triton's iPXE.

I've not updated it with upstream in a while, but hearing these stories makes me worry.

And I'm running your modded one.