As almost everytime after upgrading Virtualbox to a major version I had trouble to get it up and running on my Ubuntu host. This time I upgraded from 3.2 to 4.0.4 and had the following issues:

Vboxtool no longer working:

I am using Vboxtool to manage my virtual machines from the command line. This tool stopped working because a major redesign of the VBoxManage command. I found a hacked version here. This version works for me.

No access to the virtual machines via RDP:

I was able to start my virtual machines but I could no longer connect to them via the RDP protocol. There were two issues here:

First I neeeded to start the VirtualBox Manager and go to “File -> Preferences -> General”. Choose “Reset” in the field “RDP Authentication Library”. Afterwards it should read “VBoxAuth” instead of “VRDPAuth” which was here before.

In addition you need to install the Oracle VirtualBox Extension Pack as this seems to provide the RDP functionality. You can download it from here. You need to be root to install it (or run Virtualbox Manager with sudo).

After completeing the steps above Virtualbox now seems to run again …

BTW: A step by step instruction to install Virtualbox 4.0.4 on an Ubuntu host can be found here.

Upgrade to VirtualBox 4.0.4 (Ubuntu Host): Issues solved
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5 thoughts on “Upgrade to VirtualBox 4.0.4 (Ubuntu Host): Issues solved

  • 26.05.2011 at 22:21

    Thank you. The reset of the “RDP Authentication Library” fixed my VRDP connection problem that started after the VirtualBox 4.0.8 upgrade. I had discussed it on the forum with no resolution.

  • 24.09.2011 at 16:48

    Thanks for this help. I upgraded from to 4.1.2 and all RDP had stopped working. My problem was the ext pack was missing (others may say my problem was I didn’t read the manual….)

    Either way Thanks.

  • 22.05.2012 at 16:02

    Version 0.5 of VBoxTool should be compatible with VBox 4.x. Just give it a try.

  • 22.05.2012 at 17:36

    Just updated to 0.5 and it does work out of teh box. Thank you and it is great that someone is now taking care again of this useful tool.


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