[OpenPower-Firmware] How risky is uploading self-compiled PNOR for Habanero?

[Werner Fischer]

I'm testing a Habanero System from TYAN (the ...-4T-3 model [1]).

I have now compiled a PNOR for this server on my x86_64 Ubuntu 14.04
laptop. For this I did:
------------------------------------------------------------------
$ git clone --recursive https://github.com/open-power/op-build.git
$ cd op-build
$ . op-build-env
$ op-build habanero_defconfig
$ op-build
------------------------------------------------------------------

The process finished successfully as you can see in the console output:
------------------------------------------------------------------
[...]
/usr/bin/install /home/wfischer/git/op-build/output/host/usr/powerpc64le-buildroot-linux-gnu/sysroot/pnor/"habanero.pnor" /home/wfischer/git/op-build/output/images
# if this config has an UPDATE_FILENAME defined, create a 32M (1/2 size)
# image that only updates the non-golden side
if [ ""habanero_update.pnor"" != "" ]; then dd if=/home/wfischer/git/op-build/output/host/usr/powerpc64le-buildroot-linux-gnu/sysroot/pnor/"habanero.pnor" of=/home/wfischer/git/op-build/output/host/usr/powerpc64le-buildroot-linux-gnu/sysroot/pnor/"habanero_update.pnor" bs=32M count=1; /usr/bin/install /home/wfischer/git/op-build/output/host/usr/powerpc64le-buildroot-linux-gnu/sysroot/pnor/"habanero_update.pnor" /home/wfischer/git/op-build/output/images; fi
1+0 records in
1+0 records out
33554432 bytes (34 MB) copied, 0,11827 s, 284 MB/s
make: Leaving directory `/home/wfischer/git/op-build/buildroot'
wfischer at tpw:~/git/op-build$ 
------------------------------------------------------------------

My question now is: how dangerous is it to upload this PNOR to the
server instead of uploading the official PNOR from TYAN? I'm rather
confident that it should work, and I also think that in case that the
PNOR does not work it should be possible to upload the offical TYAN PNOR
again as described in this blog post [2], but I also do not want to
break the server. So I'd be thankful for any field reports of people who
did this on such a TYAN system.

Best regards,
Werner

[1] http://www.tyan.com/Barebones_TN71-BP012_BSP012T71V14HR-4T-3
[2] http://mitacfae.blogspot.co.at/2016/05/how-to-upgrade-bp012-bmc-and-pnor-to.html