====== Ubuntu - Disk - Rescue data from failing drive using dd ======

If you try to naively copy data off the drive it fails.

Don't panic.  There is an option to dd that can help you get most of the data off:


<code bash>
dd if=/dev/sdc of=/home/me/sdc.dd conv=noerror,sync
</code>

----

===== If using lvm =====

<code bash>
dd if=/dev/vg0/failing-lvm of=/dev/vg0/new-lvm conv=noerror,sync
</code>

  * The conv options specify that dd should ignore read errors, and to synchronize the read position with the write position when those errors occur.

----

===== Mount the volume =====

The file sdd.dd or new lvm volume could now be mounted:

<code bash>
mount -o loop -t ntfs /home/me/sdd.dd /mnt/old
</code>

Hopefully you can recover (most of) the files now.