Windows Server Backup 2012 error - "The version does not support this version of the file format."

Posted by Cylindric on Server Fault See other posts from Server Fault or by Cylindric
Published on 2012-10-01T10:26:54Z Indexed on 2012/12/04 5:07 UTC
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I'm trying out Windows Server 2012, specifically Windows Server Backup, as it would be a very useful way to see us through until we can upgrade our 'real' backup system.

I'm backing up to a network share, and a Server 2008 WSB works fine.

On the 2012 server however, I get an error:

Backup of volume \?\Volume{298d1a7d-f80f-11e1-93e8-806e6f6e6963}\ has failed. The version does not support this version of the file format.

It's a VHDX written by WSB, so I'm not sure what version it's complaining about.

I can see a whole bunch of files in the destination, so I don't think it's a simple authentication issue, but I only get about 8Mb of VHDX written.

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