Booting Linux kernel under UEFI hangs immediately after download

[langlorx]

When I first found the issue, I was still sitting on a mid-June version of the software, but after rebuilding with debugging and still seeing the issue, I pulled the latest from master and am using the August 31 commit 827dd1 as confirmed on the boot message printed by iPXE. It still requires I place a sleep 1 before the boot statement for it to boot on hardware. I am testing on a Dell PowerEdge R710, specifically. I'm using bin-x86_64-efi/snponly.efi

Swapping the order of initrd and kernel did fix the issue with CentOS.