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Data recovery on formatted diskette?

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(@shaun091382)
Posts: 13
Active Member
Topic starter
 

When viewing the formatted floppy diskette in a hex editor (Diskedit) the there is no entries in the root of the a (sector 19 to 32). There is however data located starting in sector 33 onwards. There is no actual file normal or deleted just data that can be viewed in hex. How do you recover this data? I know you could use a carving tool but is there a way to manually recover within a hex editor?

 
Posted : 10/03/2006 5:49 am
(@bjgleas)
Posts: 114
Estimable Member
 

Sounds like the floppy was quick formatted.

Can the data be retrived manually? It depends… if it is simple text files, you can probably tell where it starts and stops, just save those sectors to a disk. If it is binary, that is going to be harder. In addition, if the data is fragmented, or were in subdirectories, it would be even harder.

My recommendation would be going with the data carver (such as foremost) since it would do that stuff automatically.

bj

 
Posted : 10/03/2006 8:26 am
nickfx
(@nickfx)
Posts: 131
Estimable Member
 

Try X-Ways Shaun, it has some good data recovery abilities - http//www.x-ways.net/forensics/index-m.html.

Its only $95 for the professional version, I use it alot.

Cheers

Nick

 
Posted : 10/03/2006 8:09 pm
(@shaun091382)
Posts: 13
Active Member
Topic starter
 

I was thinking there would be a need a need to recreate a directory in the root. But because there is only data and no "file" to recover I did the following

Viewing in Hex view found where the data ended and separated from each other. The two areas were Data similar in sector 33 to 87 and Data similar in sector 88 to 389. I used Diskedit to write sector 33 to 87 to a newly created file by myself. The data from sector 33 to 87 is a log file of sorts so I created a .txt file to extract the sectors to. Sectors 88 to 389 were garbled characters so I extracted sector 88 to 389 to its own file and ran a data carver on that file to extract what was needed.

 
Posted : 10/03/2006 9:10 pm
(@shaun091382)
Posts: 13
Active Member
Topic starter
 

I need to figure out how to manually recover this data? can anyone help? with a formatted diskette there is 0 directory entries correct. So if I use a hex view there should be no fat entries and nothing in the hex view of cluster 2 sector 19. The data I want is located in Sector 33 to Sector 89. How do I get this information back? I dont want to use automated tools trying to do this manually and need to learn it.

 
Posted : 10/03/2006 11:54 pm
(@youcefb9)
Posts: 38
Eminent Member
 

different OS handle formatting differently.
sometimes everything is still there just the management region (file system layer) is cleared and even then (like in FAT 32) backup copies are still intact and you can copy them over to retrieve (reformat) your diskette.

the golden question is what OS formatted this diskeette and what file system exists on it (FAT12. FAT16, FAT32).

 
Posted : 11/03/2006 12:32 am
(@shaun091382)
Posts: 13
Active Member
Topic starter
 

Not sure about what OS it was formatted on but existing file system is FAT12

 
Posted : 11/03/2006 1:43 am
(@bjgleas)
Posts: 114
Estimable Member
 

I need to figure out how to manually recover this data? can anyone help? with a formatted diskette there is 0 directory entries correct. So if I use a hex view there should be no fat entries and nothing in the hex view of cluster 2 sector 19. The data I want is located in Sector 33 to Sector 89. How do I get this information back? I dont want to use automated tools trying to do this manually and need to learn it.

This is sounds like a homework assignment, but basically, if you know the sectors, then tell the hex editor you are using to write those sectors to a file on another drive, it should prompt you for a name, call it recovered01 (or something like that), and give it a file extension of what you think the file type is.

bj

 
Posted : 11/03/2006 6:54 am
(@shaun091382)
Posts: 13
Active Member
Topic starter
 

Hi thanks for your help it is part of a work assignment …I just read a bit on file headers etc etc. located jfif headers that were to be recovered and had no problem creating entry's to recover them. I was getting confused over the fact that there was just data to be recovered and not an actual file that existed. I was confused as to how to recover them via say creating a directory in the root of the a which is not the case. Don't create a directory just make an entry and make it a file entry not a directory entry to recover the data to.

 
Posted : 12/03/2006 3:00 am
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