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My virtual box is not working since I have upgraded my lion OS.

VT-x is being used by another hypervisor. (VERR_VMX_IN_VMX_ROOT_MODE).

VirtualBox can't operate in VMX root mode. Please close all other virtualization programs. (VERR_VMX_IN_VMX_ROOT_MODE).

So I found a forum thread here : https://www.virtualbox.org/ticket/10965, and the solution seems to install again the virtual box again. So now, how can I migrate all the content of my ubuntu I used to ran in the VB ?

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closed as off topic by Javier Rivera, devav2, maythux, Eliah Kagan, jokerdino Oct 9 '12 at 8:04

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I've given an answer, but just for future reference, this is not Ubuntu-specific and may be closed as Off-topic. –  hexafraction Oct 8 '12 at 12:28
    
Voted to close, this is a OS/X issue, not a Ubuntu question. This can be better addressed on other sites. –  Javier Rivera Oct 9 '12 at 7:48
    
In fact, I managed to solve the problem by simply reinstalling the new release of VB and it upgraded the VB and kpt the former files :) –  Newben Oct 9 '12 at 15:52

1 Answer 1

You can copy the VM files to another location:

  1. Open Virtualbox and control-click the VM you want to keep. Select "Show in Explorer" or something like that. Copy all those files to another directory, just in case.

  2. Remove and install Virtualbox again.

  3. Go into Virtualbox and press Command+A. Find the virtual machine in your home folder/Virtualbox VMs or in the location you copied it. Select the file inside the folder(only one should be shown since it is filtered) and let it process it. You can then try to boot it.

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