Fixing the Bad Sectors List After Cloning

If you use ntfsclone to copy/backup a partition from a disk with bad sectors to a new disk, Windows still reports bad sectors on the new disk. This is no surprise as ntfsclone copies everything, including the bad sector list. Now you could use a disk editor to get rid of the wrongly reported bad sectors, or boot from a Knoppix CD and use ntfstruncate:

  1. Back up important data from partition just in case
  2. Find out size of ‘$Bad’ attribute in $Badclus using ntfsinfo with ntfsinfo -i 8 <partition>. It will be the “Allocated size” value in the “Dumping attribute $DATA (0×80)” (there will be two 0×80 attributes. Only one has an “Allocated size” line).
  3. Use ntfstruncate <partition> 8 0x80 '$Bad' 0 to set $Bad’s attribute length to zero.
  4. Use ntfstruncate <partition> 8 0x80 '$Bad' <ntfs_size> to set $Bad’s attribute length back to proper value which was recorded in step 2.
  5. Boot into Windows and run chkdsk. It will find errors and should fix them.
Via the ntfsclone FAQ.

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[Sonntag, 20070930, 02:13 | permanent link | 0 Kommentar(e)

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