Re: GEOM_RAID in GENERIC 9.1


On 30.07.2012 08:33, Eugene M. Zheganin wrote:
> On 30.07.2012 11:04, Eugene M. Zheganin wrote:
>> I am aware about how this thing works and what it does. However, every
>> time I upgrade new server I got hit by it again and again, simply
>> forgetting to remove it from the kernel's config.
>>
>> I'm afraid this thing will hit lots of FreeBSD installations after the
>> release; it may be easily removed but still it will poison the life of
>> many engineers and I really think it's a bomb, and should be removed
>> from GENERIC.
>>
> Okay, I feel like I need to clarify this, as some decent guys pointed me
> out that I'm very unclear and even rude (sorry for that, that's
> unintentional).
>
> GEOM_RAID was inserted instead of ataraid, but ataraid wasn't messing
> with zpooled disks: with GEOM_RAID the kernel takes both (in case of
> mirrored pool) providers, and mountroot just fails, as it sees no zfs pool.
>
> Plus, it's even more. This time I have "disabled" the raid in it's
> "BIOS" before installing FreeBSD. After mountroot failed, I booted 9.0-R
> from usb flash, trying to avoid any surgery with kernel files, like
> manual install from another machine. I was curious if I will be able to
> resolve this issue using base utilities. So, I loaded geom_raid via
> 'graid load', kernel said like 'Doh... I have ada0/ada1 spare disks',
> then I tried to remove the softraid label remains with 'graid remove' -
> and it failed, because there's no array at all, only "spares". So, the
> 'graid status' is empty, 'graid list' is empty' and it's obvious that
> some surgery is needed.
>
> And I'm not disappointed that it's happened to me, no, because I know
> how to resolve this.
> But the thing that I'm really afraid of is that this default option will
> hit the less experienced engineers.

Thank you for your report. I will recheck deletion of spare disks. But 
what's about `geom status/list` in this case, there are special options 
-a and -g to handle geoms without providers.

-- 
Alexander Motin
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