It looks like you are just running
You need to run the exact command as I have it right here
It should show all of your drives like this:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x02bf1904
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12748 102398278+ 7 HPFS/NTFS
/dev/sda2 12749 12781 265072+ 82 Linux swap / Solaris
/dev/sda3 12782 60801 385720650 83 Linux
"The only thing necessary for the triumph of evil is for good men to do nothing." Edmund Burke