VBox: "Unsupported version 2 of data unit" after snapshot was restored

[Yuri]

On 01/30/2012 01:18, Bernhard Froehlich wrote:
> From vbox developers:
> Up to version 4.0 vbox used only version 1 of saved state of the DMA 
> controller.
> With vbox 4.1 a new version 2 was introduced which cannot be used with 
> an older
> vbox version.
>
> So have you probably created a snapshot with a newer vbox 4.1.x and 
> then switched
> back to vbox 4.0.x and restored the snapshot there? If that is the 
> case you can
> restore the snapshot with 4.1.x and be sure that there is no saved 
> state anymore
> and then switch back to 4.0.x. 

This snapshot was created in Oct-Nov 2011, I have always been with the 
port version in 2011. Unless the port version went to 4.1.X and later 
was downgraded, I probably never used version 4.1.X.

Yuri