Upgrade hoses existing virtual boxes

[Eric G.]

Hi,

I got a message saying there was a newer version of Virtual Box available, so I upgraded to 4.1.22 from (I believe) 4.1.20. When I did all my existing virtual boxes were hosed, none of them will boot up, they all give nonexistent host networking interface. I wouldn't have done the upgrade at this time if I'd known this would happen. It would be nice if the upgrade gave a warning that there was a risk that existing virtual boxes could have problems.

-Eric

[GarethH]

I am currently sitting with an issue with 4.2 as well. Best not to go that route.
Logs mean nothing to me so cannot identify a cause.

[mpack]

Minimal information needed for assistance
viewtopic.php?f=24&t=48476