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Date: Mon, 23 May 2011 16:05:40 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: "Andrey V. Elsukov" <bu7cher@yandex.ru>, freebsd-geom@FreeBSD.org
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Subject: Re: [RFC] Remove requirement of alignment to track from MBR scheme
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on 23/05/2011 12:55 Andrey V. Elsukov said the following:
> Hi,
> 
> Since after r221788 many people report about lost of access to their
> MBR partitions, i prepared new patch:
> 	
> 	http://people.freebsd.org/~ae/mbr_geometry.diff
> 
> It removes from GEOM_PART_MBR constraints to alignment to track.
> Now it is possible to create MBR partitions with exactly specified
> start offset and size, and they will not be recalculated by kernel.
> 
> Also the patch adds new option "-g" to the gpart(8) utility. This
> option can be specified for "add" and "resize" subcommands.
> gpart(8) uses information about provider's "geometry" and does
> partition alignment how it did before for MBR.
> 
> With these changes we give to users the choice how align their
> partitions and also we still able to use some "broken" partition
> tables.

My personal opinion is that removing geometry enforcement (or even consideration)
is a correct decision.

-- 
Andriy Gapon