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I connected my external HDD to my TV and the TV did not recognize it. After that I can't open it on my computer any more.

I tried fsck which kept asking more and more questions. Fearing that I would make the data impossible to retrieve by giving wrong answers (y/n), I stopped in the middle. The error message has changed since (it used to be about invalid fs type)

It wouldn't open on Windows either (Win 7 on VM). I believe the original format was NTFS

Current error:

Error mounting /dev/sdb1 at /media/[username omitted]/28bc82aa-d4bd-459e-b071-16839167a6da: Command-line `mount -t "ext4" -o "uhelper=udisks2,nodev,nosuid" "/dev/sdb1" "/media/.../28bc82aa-d4bd-459e-b071-16839167a6da"' exited with non-zero exit status 32: mount: /dev/sdb1: can't read superblock

The data is very important to me and I don't have any other copy of some of it

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What does fdisk -l output? How many partitions are there on the hard drive? It may just be the first one causing the trouble (which is a problem if it only has one partition). – Wilf Nov 24 '13 at 14:03
Two partitions - the second one is fine – lfk Nov 25 '13 at 11:54
I think the first issue right now is that the OS thinks its filesystem is ext4 whereas the filesystem is NTFS – lfk Nov 25 '13 at 11:55
If that is the case you may just need to use mount - added it to my answer. – Wilf Nov 25 '13 at 13:38

Since filesystem manipulation causes always risk of data loss I recommend to make a backup before doing anything else: Data-Recovery: Imaging a damaged device, filesystem or drive

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Manually mounting the file-system should work - just use the mount command:

It uses these parameters: mount -t type device dir

So run this:


Here is an example:

mount -t ntfs /dev/sdb1 /mnt

For more information run man mount

Check it with GParted - sudo apt-get install gparted then gparted.

This will show the formatting of your disk, and whether it has any data on it - it can also repair the disk if necessary.

enter image description here

Backing it to an image would also be a good idea.

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