gpart bootcode Operation not permitted

[Artem Kuchin]

03.04.2020 17:11, Miroslav Lachman пишет:
> Artem Kuchin wrote on 2020/04/03 15:23:
>> I am lost with this problem.
>>
>> I have gmirror:
>>
>> # gmirror status
>>         Name    Status  Components
>> mirror/boot  COMPLETE  ada0p1 (ACTIVE)
>>                         ada1p1 (ACTIVE)
>> mirror/swap  COMPLETE  ada0p2 (ACTIVE)
>>                         ada1p2 (ACTIVE)
>> mirror/root  COMPLETE  ada0p3 (ACTIVE)
>
> I you are mirroring boot partition why you need to write directly to 
> individual partitions on both disk instead of mirror?
>
> I never used this setup. I mirrored swap, /root, /usr, /var but not 
> boot partition. Then I write gptzfsboot to both ob them individually.
>
> Miroslav Lachman
>
I don't know :) It is a historical setup. I even would say that 
mirroring swap is a bad idea, isn't it?

But i need to have a working boot code on both disks because in case of 
failure i need to boot from any disk.

Protective MBR is not mirrored anyway, so, need to install it 
separatelly on each disk for sure. Installing boot code into

boot partion maybe can be done on mirror partition (or whatever it is 
calleed mirror/boot) but then how do i address it

in the gpart boocode command ?


Artem