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I am not able to mount a NTFS(sda2) partition in Ubuntu, a window pops up saying "Error Mounting: Mount Exited with exit code 2" errors. here is the output of fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe3cde3cd

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               2       12748   102390247    f  W95 Ext'd (LBA)
/dev/sda2   *       12749       25497   102400000    7  HPFS/NTFS
Partition 2 does not end on cylinder boundary.
/dev/sda3           25497       38914   107768832    7  HPFS/NTFS
Partition 3 does not end on cylinder boundary.
/dev/sda5               2        4570    36700461   83  Linux
/dev/sda6            4571       10802    50056665   83  Linux
/dev/sda7           10803       12748    15631213+   7  HPFS/NTFS

output of sudo ntfsfix /dev/sda:

 Mounting volume... Segmentation fault

Few weeks back I created the sda7 partition (for win7) using gparted due to which "Partition 2/3 does not end on cylinder boundary" msg were also creted,but things were going fine until recently now I can't mount sda2.

Data in sda2 is very imp to me is there any way to (force) mount it,after copying data form it I can recreate the erroneous partitions.

EDIT:

sudo sfdisk -uS -l:

    Disk /dev/sda: 38913 cylinders, 255 heads, 63 sectors/track
Warning: extended partition does not start at a cylinder boundary.
DOS and Linux will interpret the contents differently.
Units = sectors of 512 bytes, counting from 0

   Device Boot    Start       End   #sectors  Id  System
/dev/sda1         16126 204796619  204780494   f  W95 Ext'd (LBA)
/dev/sda2   * 204802048 409602047  204800000   7  HPFS/NTFS
        start: (c,h,s) expected (1023,254,63) found (1023,86,11)
        end: (c,h,s) expected (1023,254,63) found (1023,139,51)
/dev/sda3     409602048 625139711  215537664   7  HPFS/NTFS
        start: (c,h,s) expected (1023,254,63) found (1023,139,52)
        end: (c,h,s) expected (1023,254,63) found (1023,37,36)
/dev/sda4             0         -          0   0  Empty
/dev/sda5         16128  73417049   73400922  83  Linux
/dev/sda6      73420800 173534129  100113330  83  Linux
/dev/sda7     173534193 204796619   31262427   7  HPFS/NTFS
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closed as too localized by fossfreedom Dec 1 '12 at 21:30

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