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Cc: freebsd-stable@freebsd.org
Subject: Re: gpart -b 34 versus gpart -b 1024
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Dmitry Morozovsky <marck@rinet.ru> wrote:
> ... sector numbers (in CHS address method)
> [start] at 1 (which always suprized me ;)

This goes back at least as far as soft-sectored 8" diskettes
in the CP/M era.

IIRC, physical sector 0 of each track contained the C number,
possibly the H, and a list of the remaining sectors on the track
including the size of each sector -- even within a single track
the sectors did not all have to be the same size.