trying to dual boot bt2.....in order to partition my hard drive i open the shell and type mount and that works fine but when i do the unmount command it says that its not recognized (....unmount /mnt/sda1....) thats is what it says my hard drive mount is is sda1 and i have tried hda1 and it still says not recognized wtf am i doing wrong............much thx to any one who can figure this out..........