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As I was resizing my partitions using GParted, my laptop battery ran out, and the process was interrupted.

Now, I am unable to mount the partition which I was trying to resize. I get the following error when I click to mount the partition on nautilus:

Error mounting:
mount: wrong fs type, bad option, bad superblock on /dev/sda3,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

How can I go about recovering my data? Is there a safe way to attempt to force-mount the partition in question? Any help towards recovering my data is sincerely appreciated.

Gilles 'SO- stop being evil'
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erjoalgo
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2 Answers2

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Some months ago, @psusi said: "Your data is pretty much toast. At this point you need to restore from backup..."

I didn't believe it. My computer has only about 4GB of RAM, and the partition being moved was around 350GB. If we assume that the "move partition" operation of GParted is correct, 4GB should be a limit on the amount of data that could have been lost. (Otherwise, the "move partition" operation likely could not complete without loss of data).

Indeed, I was able to recover my directory tree, albeit a bit shuffled (since the move operation had been interrupted, a strange directory configuration resulted, where about half of my home directory was inside one folder).

The answer was testdisk, which was able to detect the filesystem in question. After this was detected, I copied the files onto an external HD. This learning experience has brought me closer to enlightenment via http://www.taobackup.com/.

erjoalgo
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Your data is pretty much toast. At this point you need to restore from backup. If you don't have backups, let this be a lesson to you to start making them. If there are still files you want to attempt to recover, pray, and try the photorec utility from the testdisk package.

psusi
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