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I recently ran into the case that an LVM snapshot overflowed. The reasons are unclear: * there was probably no write access to the origin at all * both snapshot and origin have same size (100g, 25600 extends) * according to the documentation this should never happen in this case

Now I would like to attempt to recover (part) the disk from the last state. I would assume that most of the disk should be still in a reasonable state and somewhere in my volume group. However I could not find a way to do this, a simple dd fails with read errors.

In case it matters, the volume contains a virtual machine.

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