[1040] in NetBSD-Development

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Re: More details

daemon@ATHENA.MIT.EDU (Greg Hudson)
Wed Oct 4 22:09:18 1995

Date: Wed, 4 Oct 1995 22:08:42 -0400
From: Greg Hudson <ghudson@MIT.EDU>
To: ghudson@MIT.EDU
Cc: netbsd-dev@MIT.EDU
In-Reply-To: "[1039] in NetBSD-Development"

> I think the disklabel generated by the installation will still have
> the untranslated geometry.  This shouldn't be a problem in practice.
> It might actually be generating the correct geometry, but I'm not
> sure.

It does get the correct geometry in the disklabel, actually.

I'm worried about the case where someone installs NetBSD on a disk
(with a translated geometry) with no other partitions.  fdisk won't be
able to find out the translated geometry, and the physical geometry of
the start of the partition (cylinder 0, track 1, sector 0) won't
translate to the same sector.

I've updated makepart (on the NFS server) to leave one sector fewer
than a whole track free at the beginning, so that the physical address
(cylinder 0, track 0, sector S) will always translate to the same
sector even if the translated geometry is different from the geometry
actually used.


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