On Mon, 5 Nov 2007 08:02:09 +0000
David Laight <david@l8s.co.uk> wrote:

> On Mon, Nov 05, 2007 at 05:56:09AM +0000, Steven M. Bellovin wrote:
> > I just ran into a serious problem with a new Thinkpad T61: anything
> > looking at the MBR on the 160G disk running with ahcisata got very
> > confused.  I'll skip all the gory details (and the state it left my
> > disk in); the net, though, is the fdisk and sysinst think the drive
> > has only 67MB.  When I changed it in the BIOS to compatibility
> > mode, it picked up the size correctly.
> 
> What does 'sysctl machdep.diskinfo' show?
> 
> 	David
> 
This is what it shows when running in compatibility mode:
machdep.diskinfo: 80:312581808(1023/240/63),2  wd0:80

If you want, I'll reboot with SATA set.

I don't know what the 80 means; the rest is obviously the geometry, and
that was displayed correctly during sysinst's request that I verify it.


		--Steve Bellovin, http://www.cs.columbia.edu/~smb