krpc: unbootable ZFS-on-root after major upgrade to 11.2

[Andriy Gapon]

On 22/10/2018 17:32, Eugene Grosbein wrote:
> 22.10.2018 21:21, Andriy Gapon wrote:
>> This is just a typical foot-shooting (and a shortcoming of the kernel build
>> system that allows such foot-shooting to happen).
>> I think that there can be other ways in which you can specify inconsistent
>> kernel options and/or an incorrect subset of modules in MODULES_OVERRIDE to
>> create missing dependencies for critical modules.
>> Do we want to issue an errata for each possible misconfiguration?
> 
> OTOH, we have option krpc in sys/conf/options but it is not mentioned elsewhere:
> not in the Handbook nor in the sys/conf/NOTES or GENERIC. Not a bit of our documentation mentions
> that ZFS requires KRPC for last 10 years.
> 
> One can call it foot-shooting if it is against documentation but that's not the case.

I certainly agree that there is a lack of documentation.
Still, this is a foot-shooting.

Anyway, my point was about a need to create an erratum for this kind of issue.
A documentation update would be much more appropriate.

-- 
Andriy Gapon