[vbox-dev] Problem with Guest Additions 4.3 in Windows guest

Magnus Madsen madsen.magnus at gmail.com
Wed Oct 16 09:08:41 UTC 2013


Hi Andreas,
I am using the API directly - and quickly testing, it looks like it is
working if I try to use VBoxManage.

I just went through the source for VBoxManage and I found the problem :)

It looks like you are required to use IGuestProcess.WaitFor to wait until
the session has been started - but only if the Guest Additions in the VM
using the new API version 2 (for VirtualBox 4.3)

This might be a good idea to have documented in the SDKRef document, as the
description for IGuest.createSession doesn't mention this and it seems a
bit strange that it is only needed when the Guest Additions are the newer
version.

(There is no need for separate logic for the older versions of the
additions - the WaitFor command successfully works in this case as well)

Many thanks!

Magnus


On Wed, Oct 16, 2013 at 10:41 AM, Andreas Löffler <
andreas.loeffler at oracle.com> wrote:

> Hi,
>
> are you using the API itself or some frontend / client which ships with
> VBox? If using the API, please have a look at the SDK reference;
> it contains the things which might need adjustment when using your own
> client code with former versions of VBox.
>
> BTW, did executing with VBoxManage work for you so using the 4.3
> Additions? Did the VM log tell something additional if not?
>
> Andreas
>
>
>
> On 16.10.2013 10:11, Magnus Madsen wrote:
>
>> Hi!
>> Great thanks for the new 4.3 version being released.
>>
>> There looks to be a problem with guestcontrol though.
>> VMs using an older version of the Guest Additions work like normally in
>> my application, but if I upgrade the additions to 4.3, the GuestSession
>> is always in the GuestSessionStatus_Error state and I am unable to
>> execute anything towards the Guest Additions.
>>
>> Is there a change in how the API should be used with the new version of
>> Guest Additions, or is this an error?
>>
>>
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>>
>>
> --
> Kind regards / Mit freundlichen Grüßen
>
> **********************************************************************
> Andreas Löffler          | VirtualBox Engineering
> Senior Software Engineer | Oracle Virtualization
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