Allowing arbitrary MBR slice alignment

[Warren Block]

On Mon, 17 Feb 2014, Marcel Moolenaar wrote:

> In short: Don't revert the design and intent of gpart. Let it
> be the common interface to all partitioning schemes. This means
> that you want be be able to say "-a 4K" or "-b 2000" without
> regard for the scheme and know that the scheme will round or
> adjust accordingly. The gpart utility will lose its power if
> that is being meddled with, because it's power comes from the
> fact that you do not have to know the particulars of the scheme
> in use, nor even the scheme being used in order to work with it.
> This is key in having it be scriptable.
>
> You want a way to let gpart (and the kernel) know that you are
> aware of the scheme and are going to do things that should not
> be interpreted as coming from behind a "veil of ignorance" so
> to speak.

This is entirely too reasonable for me to argue. :)

What needs to be done to proceed?