Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x17372b83 Device Boot Start End Blocks Id System /dev/sda1 2 9729 78140160 7 HPFS/NTFS /dev/sda2 9730 18303 68870655 7 HPFS/NTFS Disk /dev/sdb: 8086 MB, 8086618112 bytes 249 heads, 62 sectors/track, 1023 cylinders Units = cylinders of 15438 * 512 = 7904256 bytes Disk identifier: 0x2c6b7369 This doesn't look like a partition table Probably you selected the wrong device. Device Boot Start End Blocks Id System /dev/sdb1 ? 125407 245362 925929529+ 68 Unknown Partition 1 has different physical/logical beginnings (non-Linux?): phys=(116, 100, 32) logical=(125406, 168, 29) Partition 1 has different physical/logical endings: phys=(288, 101, 46) logical=(245361, 67, 59) Partition 1 does not end on cylinder boundary. /dev/sdb2 ? 86163 121076 269488144 79 Unknown Partition 2 has different physical/logical beginnings (non-Linux?): phys=(357, 32, 43) logical=(86162, 245, 47) Partition 2 has different physical/logical endings: phys=(0, 13, 10) logical=(121075, 74, 42) Partition 2 does not end on cylinder boundary. /dev/sdb3 ? 34914 125493 699181456 53 OnTrack DM6 Aux3 Partition 3 has different physical/logical beginnings (non-Linux?): phys=(345, 32, 19) logical=(34913, 40, 18) Partition 3 has different physical/logical endings: phys=(324, 77, 19) logical=(125492, 109, 49) Partition 3 does not end on cylinder boundary. /dev/sdb4 ? 90338 90339 10668+ 49 Unknown Partition 4 has different physical/logical beginnings (non-Linux?): phys=(87, 1, 0) logical=(90337, 81, 36) Partition 4 has different physical/logical endings: phys=(335, 78, 2) logical=(90338, 176, 44) Partition 4 does not end on cylinder boundary. Partition table entries are not in disk order