[Discuss] recover files and foldes from USB pendrive?

[Murray Strome]

Hi Peter

Thanks. 
I have done as you suggested, but will make another copy as I think I ran out of space on my home directory before it finished.  I saved that file on another external drive anyway.

I don't know if this information would help. I did sudo fdisk -l and this is what it says:
Disk /dev/sdb: 64.5 GB, 64487424000 bytes
64 heads, 32 sectors/track, 61500 cylinders, total 125952000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x69205244

This doesn't look like a partition table
Probably you selected the wrong device.

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   ?   218129509  1920119918   850995205   72  Unknown
/dev/sdb2   ?   729050177  1273024900   271987362   74  Unknown
/dev/sdb3   ?   168653938   168653938           0   65  Novell Netware 386
/dev/sdb4      2692939776  2692991410       25817+   0  Empty

Partition table entries are not in disk order
-----
If I try to mount it in LINUX, it says:
Error mounting file system
Error mounting /dev/sdb at /media/murray/CENTON USB: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sdb" "/media/murray/CENTON USB"' exited with non-zero exit status 13: Incomplete multi-sector transfer: magic: 0x454c4146  size: 1024  usa_ofs: 48  usa_count: 0  data: 241  usn: 113: Input/output error
Record 6 has no FILE magic (0x44414142)
Failed to open inode FILE_Bitmap: Input/output error
Failed to mount '/dev/sdb': Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very
important! If the device is a SoftRAID/FakeRAID then first activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for more details.
 (udisks-error-quark, 0)
--------
Next time I boot into Windows or perhaps have access to my son's computer, I will try the 
chkdsk /f
and see what it says. I did try the Properties>Tools>check disk in Windows earlier but it simply said something that it could not be accessed and should be formatted. I did not try running chkdsk /f from "Run" or whatever it is in Windows 7.

Murray
----- Original Message -----
From: "pw" <p.willis at telus.net>
To: discuss at vlug.org
Sent: Saturday, May 17, 2014 8:16:12 PM
Subject: Re: [Discuss] recover files and foldes from USB pendrive?

Hello Murray,

First off use 'dd' to copy the complete USB stick to a file.

Make an archive copy of that file again as a backup and put it away for
safe keeping.

Now you have your USB stick in a file, and you have a backup copy
in another file just in case. You can start working on the image of
the USB stick.

Mount a working copy of the file as a loop file system and try
different file system tools on it.

If you can't figure it out. Post the file somewhere and get someone
more attuned to file recovery tools to download it and extract things
from it.


Peter


On 05/17/2014 08:05 PM, Murray Strome wrote:
> I have a pendrive that has quit working properly. In Windows, it is detected but says it has to be formatted. In LINUX it is not detected by the file manager, so I imagine the partition table has been corrupted.
>
> I wonder if anyone has found a good, free data recovery tool for a situation like this. I have done some searches but not found anything appropriate so far. I think I did find something some time ago (and may even have it installed on one of my computers at home). However, I am away and only have my netbook with me and cannot remember what I might have used.
>
> Any suggestions? I did try a couple of Windows free trial things (which did not work and even if they did, the free version is limited to 100M which won't help too much with my 64G drive).
>
> Thanks for any help or advice.
>
> Murray
> _______________________________________________
> Discuss mailing list
> Discuss at vlug.org
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>

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