Disk /dev/sda: 251.0 GB, 251000193024 bytes 255 heads, 63 sectors/track, 30515 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 30515 245111706 7 HPFS/NTFS Disk /dev/hda: 81.9 GB, 81964302336 bytes 255 heads, 63 sectors/track, 9964 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 9964 80035798+ 7 HPFS/NTFS Disk /dev/hdb: 81.9 GB, 81964302336 bytes 16 heads, 63 sectors/track, 158816 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/hdb1 ? 1837440 3591402 883996688 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/hdb2 ? 1270302 2673361 707141781+ 6c Unknown Partition 2 does not end on cylinder boundary. /dev/hdb3 ? 167316 167316 0 d Unknown Partition 3 does not end on cylinder boundary. /dev/hdb4 2488483 2488529 23250+ 0 Empty Partition 4 does not end on cylinder boundary. Partition table entries are not in disk order