[OpenPower-Firmware] Can't flash compiled image - Invalid PNOR image

[Patryk Duda]

Hi,

I'm trying to debug why operating system is not receiving interrupts
from network card (sometimes network card hangs during tests). It
turned out that OPAL is not unmasking interrupt. So, I want to update
skiboot to the latest version, but I can't find appropriate PNOR
image, even version from 05.01.2018 has skiboot 5.4.2. i'm working on
8001-12C and I want to prepare image using p8dtu-op-build repository
(https://github.com/supermicro/p8dtu-op-build) but set newest skiboot
version in config. Everything goes well, but when I want to flash
image using pUpdate, I get:

Abnormal PNOR image size (0x2000000)
Version info are not available.
If the PNOR update fails, PLEASE TRY AGAIN.
Transfer data ................
validating PNOR image ................
Image validation failed.
Invalid PNOR image!
ERROR: failed to update PNOR. [0xffffffff]

Probably I forgot about some important step, or maybe my idea is
wrong. Could you help to resolve this issue?

Thanks,
Patryk