[RFC] Remove requirement of alignment to track from MBR scheme
Andriy Gapon
avg at FreeBSD.org
Mon May 23 13:05:45 UTC 2011
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
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