光盘安装Ubuntu10.04时，看不到我的未分配空间，只能看见整个硬盘
以前在Vista下用过第三方分区软件
具体数据：
ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (мinimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x10bdf2ee
Device Boot Start End Blocks Id System
/dev/sda1 1 808 6484992 27 Unknown
Partition 1 does not end on cylinder boundary.
/dev/sda2 * 808 8249 59769800 7 HPFS/NTFS
Partition 2 does not end on cylinder boundary.
/dev/sda3 14805 17138 18737148 7 HPFS/NTFS
Partition 3 does not end on cylinder boundary.
/dev/sda4 8249 19458 90033184 5 Extended
Partition 4 does not end on cylinder boundary.
/dev/sda5 8249 12847 36934288 7 HPFS/NTFS
/dev/sda6 17138 19458 18630656 7 HPFS/NTFS
Partition table entries are not in disk order
ubuntu@ubuntu:~$ sudo parted /dev/sda print
Error: Can't have overlapping partitions.
求解决方案（wubi我装不了）