In message <http://marc.info/?l=openbsd-misc&m=123795241410704&w=1>,
Nick Holland wrote
[[many examples of disks which don't have an n/255/63 geometry]]
> I'm actually somewhat surprised how many exceptions I found
> with very little effort.  The only thing that surprised me
> was the lack of my finding a "240 head" system, that's a
> classic Compaqism, but apparently my firewall system has too
> small a hard disk. :)  I think the majority of the machines
> I looked at (granted, guessing they would be "odd") were,
> well...odd.

To beat this dead horse just a bit more, here's a "240-head"
geometry from a quite "ordinary" system:

Disk: wd0       geometry: 20673/240/63 [312581808 Sectors]

The system is an (i386) IBM/Lenovo Thinkpad T42 laptop.
The disk is a 160GB Hitachi HTS541616J9AT00 which I bought
new in October 2008.  Needless to say, OpenBSD installed
without a hitch on this disk, and runs fine:
% dmesg|grep wd0
wd0 at pciide0 channel 0 drive 0: <Hitachi HTS541616J9AT00>
wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
root on wd0a swap on wd0b dump on wd0b
%

ciao,

-- 
-- "Jonathan Thornburg [remove -animal to reply]" 
<jth...@astro.indiana-zebra.edu>
   Dept of Astronomy, Indiana University, Bloomington, Indiana, USA
   "Washing one's hands of the conflict between the powerful and the
    powerless means to side with the powerful, not to be neutral."
                                      -- quote by Freire / poster by Oxfam

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