Some notes on RootOnZFS article in wiki

[Mel Flynn]

On Monday 21 December 2009 06:05:14 Ollivier Robert wrote:
> According to Mel Flynn:
> > 2) `gpart set -a active -i 1 ad4' gave me 'active: device not
> > configured'. This error isn't mentioned (debugflags didn't help) in the
> > wiki nor the missing DIAGNOSTICS section in the gpart man page. In my
> > case the system booted, but it's nice to know what the error means and
> > whether you can
> 
> Most of the time, you don't even need it.  On modern machines, system will
>  boot from the GPT "freebsd-boot" partition w/o having it active.

And you would know whether you fall into the 'modern machines' category how? 

Also, did this error tell me I don't need it, did it tell me it didn't work 
even though it tried and now my partition info is screwed or is it completely 
harmless? That's what I'd like to know (either in the article, but probably 
better in gpart manpage).
-- 
Mel