kenneth@galadriel:~$ fdisk -l /dev/hdb
Cannot open /dev/hdb
kenneth@galadriel:~$
kenneth@galadriel:~$ sudo fdisk -l /dev/hdb
Password:
Disk /dev/hdb: 61.4 GB, 61492838400 bytes
255 heads, 63 sectors/track, 7476 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 7476 60050938+ 7 HPFS/NTFS
kenneth@galadriel:~$
Hope that helps 
or if I type
kenneth@galadriel:~$ sudo fdisk -l /dev/hdb1
Disk /dev/hdb1: 61.4 GB, 61492161024 bytes
16 heads, 63 sectors/track, 119148 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
This doesn't look like a partition table
Probably you selected the wrong device.
Device Boot Start End Blocks Id System
/dev/hdb1p1 ? 216399 1904881 850995205 72 Unknown
Partition 1 does not end on cylinder boundary.
/dev/hdb1p2 ? 723265 1262922 271987362 74 Unknown
Partition 2 does not end on cylinder boundary.
/dev/hdb1p3 ? 167316 167316 0 65 Novell Netware 386
Partition 3 does not end on cylinder boundary.
/dev/hdb1p4 2671568 2671619 25817+ 0 Empty
Partition 4 does not end on cylinder boundary.
Partition table entries are not in disk order
kenneth@galadriel:~$
Ken
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Middle age is when your classmates are so grey, bald and wrinkled that they don't recognize you.
-Bennet Cerf