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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Boot Sector Rebuild

June 24th, 2011, 13:25

Hi guys,

I have a toshiba 640Gbs External Drive. Recently it has been corrupted and changed file system from NTFS to RAW, even after using a couple fixes the drive isn't working, so i ran a couple more diagnostic softwares...and i found a damaged boot sector and backup bootsector.
So i have to rebuild the boot sector on the drive to fix it...thing is....its takes a lot of time using TestDisk 6.13
Does anyone know a quicker way to fix this problem?


Thanks

Re: Boot Sector Rebuild

June 24th, 2011, 13:49

What's wrong with your existing boot sectors?

Re: Boot Sector Rebuild

June 24th, 2011, 14:14

Here is a screenshot of testdisk:
Attachments
1.jpg

Re: Boot Sector Rebuild

June 24th, 2011, 14:20

It would be helpful to know if the sectors are present but garbled, or completely unreadable, or what

Re: Boot Sector Rebuild

June 24th, 2011, 15:15

They are unreadable...

at first i could list the files on the disk and copy them using a raw copy software....but i cant even do that anymore...

Re: Boot Sector Rebuild

June 24th, 2011, 15:16

Trying the rebuild option....but its been 2 days...and its still at 200.000.000 of 1.250 mils sectors... xD

Re: Boot Sector Rebuild

June 24th, 2011, 15:34

http://www.dtidata.com/resourcecenter/2 ... ion-drive/

This shows you how to use winhex to manually create the mbr Using there templates. Info in the mbr template for sector 0 needed changing to the following for me
Start heads 32, start sector 33 & Start cylinder 0
My ntfs lba was 2048
Also make sure at the end of sector 0 & your ntfs sector it has 55AA

Re: Boot Sector Rebuild

June 24th, 2011, 15:54

iTareaper wrote:They are unreadable...

at first i could list the files on the disk and copy them using a raw copy software....but i cant even do that anymore...


If your drive is developing bad sectors you should be cloning it rather than running software scans or doing anything that will write to it
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