gconcat, convert manual to automatic

[Matt Buckland]

> 
> You cannot directly convert from manual configuration to automatic
> configuration, because automatic mode uses on-disk metadata, which is
> placed in last sector of every component.
> Doing 'gconcat label' on components with file system overwritten some
> sectors, which could corrupt your file system and also components are
> now one sectors smaller, so everything after first component moved a
> bit. You should try manual configuration again and dump/restore your
> data or stay with manual configuration if your file system is not
> corrupted.
> 
> -- 
> Pawel Jakub Dawidek                       http://www.wheel.pl
> pjd at FreeBSD.org                           http://www.FreeBSD.org
> FreeBSD committer                         Am I Evil? Yes, I Am!

OK, I'll do that. Thankyou for clarifying that.



-- 
Matthew Buckland, Network / Support Analyst
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