IBM T42p Hard Drive Issue

[Torfinn Ingolfsen]

On Wed, 05 Jan 2005 19:50:29 +0100
Arne Schwabe <arne at rfc2549.org> wrote:

> Not on the first slice but at the end of the disk, this area seem to
> be empty but it is not. IIrc the bios also reports a lower disk size
> to hide that area but Fbsd ignores that iirc. So be careful when

This is the HPA or "Host Protected Area", and it's kind of a standard on
many drives these days (search on Google for it). I think it was ATA-4
which first implemented it.
Some info here:
http://www.sleuthkit.org/informer/sleuthkit-informer-17.html#hpa
and here:
http://www.techpathways.com/webhelp/Advanced_Tips/Advanced_tips_and_tricks.htm

It seems strange that FreeBSD doesn't
account for the HPA, but stranger things have happened...
-- 
Regards,
Torfinn Ingolfsen,
Norway