iPXE ESXi 6.0u2 on UEFI -> PSOD

[ordonezd]

I am trying this in a ProLiant Gen10 server, either in Legacy or UEFI, for testing purposes.

My learnings:

1) Legacy mode: compile undionly.kpxe wtih COMBOOT enabled, as suggested in
https://www.reversengineered.com/2015/02...i-in-ipxe/
Failure to do this will trigger an Illegal Opcode inmediately (full screen in Red with text ILLEGAL OPCODE on the top left corner).

2) UEFI mode: indeed use snponly.efi instead of the full ipxe.efi.
When Using full iPXE.efi, the ESXi starts loading files, but when it switches to the yellow and gray screen, it will gives a PSOD, reboot and most of the time report an UMCE in the server's IML.


In my environment, I am chainloading via a hardcoded script, and everything is being pulled from HTTP.