problems with disk geometry

[Kamal R. Prasad]

hello,

  Im trying to install FreeBSD 6.0 beta5 on a samsung SP1604N hard  
disk of about 160 GB.
The installer complains that it has a problem with the disk geometry.  
The exact message is given below:-
------------------------------------------
A geometry of 310101/16/63 is incorrect for ad1. Using a more likely  
geometry. If this geometry is incorrect.. pl. consult the hardware guide
-------------------------------------------
fdisk goes through the process of creating the reqd slices and when I  
try to commit the new partition table -it says it cannot write to / 
dev/ad1.

Can someone tell me how to get past this problem?

thanks
-kamal

Kamal R. Prasad
UNIX systems consultant
http://www.kamalprasad.com/
kamalp at acm.org