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Date: Mon, 09 May 2011 10:41:08 +0200
From: Bernhard Froehlich <decke@bluelife.at>
To: Yuri <yuri@rawbw.com>
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Subject: Re: Call for Testers: VirtualBox 4.0.6
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On Sat, 07 May 2011 08:31:57 -0700, Yuri wrote:
> I had Ubuntu (64bit) VM with the snapshot, created under vbox-4.0.4.
> Now after upgrading to vbox-4.0.6 I restored this snapshot.
> But when trying to start the machine it fails with the message:
> 
> Failed to open session for the virtual machine Ubuntu64.
> Failed to load unit 'HGCM' (VERR_INVALID_PARAMETER).
> Details
> Result Code: NS_ERROR_FAILURE (0x80004005)
> Component: Console
> Interface: ICOnsole {....}
> 
> Not sure what to do with this machine now.

Looks like an upstream bug and it is not FreeBSD specific - See
http://www.virtualbox.org/ticket/6314 and
http://forums.virtualbox.org/viewtopic.php?f=6&t=28369

There is also an workaround how to recover from that error.

-- 
Bernhard Fröhlich
http://www.bluelife.at/