On Thu, Feb 20, 2003 at 05:57:47PM +0300, Michael Soboleff wrote:
> I have 40Gb IBM IDE drive, while booting freebsd 4.7 shows
> me 79780/16/63 geometry,
> but! sysinstall gives me another numbers : 5005/255/63. The
> QUESTION is it OK?

Both are logical geometries.  They are roughly equivalent:

79780 * 16 * 63 = 80418240 addressable sectors, or ~40GB 
5005 * 255 * 63 = 80405325 addressable sectors, or ~40GB

The first figure (79780/16/63) is the disk geometry that is probably
printed on the label on the front of the disk and is conformant with the
ATA standard.  The second figure (5005/255/63) is probably the geometry
that your BIOS is using.  Either way, as long as the machine works then
you shouldn't have to worry.


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