- Minor
Seems to be specific to this board and it's latest bios:
ASRock Z170 OC Formula American Megatrends Inc., Version P7.60 BIOS dated: Friday, 03/02/2018
Users with that board will not be able to flash or upgrade to OS 7.0.0.
Ticket #6747 and as mentioned in this thread:
A system can only boot if disabling the microcode (dis_ucode_ldr) to the syslinux.cfg file.
Previous versions of UnRaid were not affected.
It's been stated that the issue is with the kernel uses in OS 7.0.0 (6.6.68) and that the problem would require AsRock to update their bios which is extremely unlikely for such old hardware (latest bios was 2018.)
https://www.asrock.com/MB/Intel/Z170 OC Formula/index.asp#BIOS