UEFI, iPXE, and HP Service Pack for ProLiant (SPP)

[NiKiZe]

so initrd seems to be loaded, you need to try and figure out exactly what it is trying to mount and how that fails.

And i must stress that you are using 3.12 kernel which is pre 3.16 and as such could still have the bug that prevents it from working correctly in regards of loading initrd in EFI mode.

See these references
http://forum.ipxe.org/showthread.php?tid...9#pid11869
http://git.kernel.org/cgit/linux/kernel/...07186d2a5f

I would start of booting this from pcbios legacy instead of EFI to make sure that the boot succeeds and everything is mounted etc, and after that try to get it running in EFI.

But this is a distribution specific issue, since the kernel is booted you might get better help from HP support, but please do keep us updated on your progress since it can help others.