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External Drive - Parted Magic Check Fat

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#1 doggyofone


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Posted 08 November 2013 - 08:32 PM

I've been going through James' tutorial for repairing an external drive with the raw data problem. The deep scan came up with the following:

The drive scan shows it to be NTFS. Then the deep scan showed the following message:


Check Fat: can't read fat boot sector

Invalid fat boot sector

0 D Fat 16 <32M 250453 131 50 252628 235 40 34947918


This message repeats several times with differences in the string of numbers after 32M


I'm not sure what this means, but this is not shown in the tutorial.


Is there a solution to be found somewhere within the forum?

Windows 7 Ultimate

IOMEGA 1.5 gig external hard drive

Parted Magic Linux Kernel 3.5.6



Edited by doggyofone, 08 November 2013 - 08:35 PM.

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#2 Anshad Edavana

Anshad Edavana

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Posted 09 November 2013 - 01:38 PM



I guess you are using "TestDisk" to fix the RAW partition. Please give a try to repairing corrupted volumes using "Gparted" which came with Parted magic. I had great success with it in similar situations.




#3 doggyofone

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Posted 09 November 2013 - 05:05 PM

Thanks for the help. Solved a different way:

I did go through the procedure through step 13, but no success. As I ran the repair I received the following:


>calibrate /dev/sbd1

>ntfs resize - P - i - F - V/dev/sdb1

device name :/dev/sdb1

ntfs volume version 3.1

cluster size : 4096 bytes

Current Volume Size : 1500299264512 bytes (1500300 mb)

Current device size : 150299265024 bytes (1500300 mb)

checking for bad sectors

ntfs_attr_pread_ic ntfs_pread failed : input output error

checking file system consitency...

Accounting clusters

Error (S) Couldn't get $Bitmap $dada : input/output error


I Google searched the input/output error by exact wording and came across a bunch of Linux notes. Finally the consitent theme was do this or do that and then run chkdsk /f in via cmd in Windows.


Did it and voila - fixed. Way too simple.

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