Subject: bin/3263: Newfs and mount_mfs complain about valid geometries
To: None <firstname.lastname@example.org>
From: None <Ian.Dall@dsto.defence.gov.au>
Date: 02/27/1997 13:23:57
>Synopsis: Newfs and mount_mfs complain about valid geometries
>Responsible: bin-bug-people (Utility Bug People)
>Arrival-Date: Wed Feb 26 19:05:06 1997
>Originator: Ian Dall
>Release: NetBSD 1.2
newfs and mount_mfs complain if the disklabel has sectors/track,
tracks/cylinder and sectors/cylinder such that sectors/track *
tracks/cylinder is greater than sectors/cylinder.
Further more, it doesn't just complain, it ignores the sectors/cylinder
This combination of parameters is normal for many modern disks which
have spare sectors at the end of each cylinder rather than at the end
of each track.
A geometry known to cause this problem is 65 sec/track, 11 tracks/cyl,
A work around is to use the -x option to newfs. However, this is not ideal
because fsck doesn't know the -x option was used when it calculates
alternate super blocks. Also -x is not a valid option to mount_mfs.
Newfs, mount_mfs and fsck should believe the sectors/track parameter in