i was using Ubuntu in the last two months over the Virtual Box. I installed so many programs and saved alot of files. All of a sudden when i click to VB i get the messagethat Ubuntu is not accessible and the following:

Runtime error opening 'C:\Users\absolution\VirtualBox VMs\Ubuntu Linux\Ubuntu Linux.vbox' for reading: -102(File not found.).
F:\tinderbox\win-5.1\src\VBox\Main\src-server\MachineImpl.cpp[745] (long __cdecl Machine::i_registeredInit(void)).
E_FAIL (0x80004005)
IMachine {b2547866-a0a1-4391-8b86-6952d82efaa0}

Can anybody help me recover my Ubuntu ?

For some unknown reason i could't ask a qusetion in the VB Forum. I am sorry to ask it here. Many thanks.

  • if you didn't lost your disks, just create another VB Machine, adding these to new machine. – Redbob Oct 3 '17 at 14:54
  • I don't understand what you mean by disks. How can i find them ? The job i have done in Ubuntu is enormous. How can such a thing happen ? How secure is VB ? Please try to answer some of these questions. – user249018 Oct 3 '17 at 15:02
  • A VB Machine is a folder with several components. Main ones are *.vbox and *.vdi files. It's possible you lose .vbox file. Look for *.vdi files, these are logical disks. If you create a newer VB Machine, can attach these disks you have from existing VB. Open `C:\Users\absolution\VirtualBox VMs\Ubuntu Linux`, you will find *.vdi file there. – Redbob Oct 3 '17 at 15:14
  • This would be better asked on superuser.com as you have VB installed on Windows and that is what has the issue, not Ubuntu. – Mark Kirby Oct 3 '17 at 15:38
  • I found the .vdi file. How can i then attach these disks to the new VB Machine ? I am new with VB so any support would be highly appreciated. Thanks. – user249018 Oct 3 '17 at 16:04

Today, I have also gone through above issue and VirtualBox was saying inaccessible and above message.

In little bit of googling I come across one solution which has resolved my issue.

Steps: 1- Navigate to the folder of vbox which is not found on your machine Like in your case it is C:\Users\absolution\VirtualBox VMs\Ubuntu Linux
2- Just observe the following files.

  1. .vdi file
  2. Ubuntu Linux.vbox-prev
  3. Ubuntu Linux.vbox-temp

Now you can open any of these two .vbox-prev or .vbox-temp file and now go and save as Ubuntu Linux.vbox. While keeping these two files.

3- Now again navigate to VirtualBox and Click on the refresh icon. Now the status will change to Power Off. 4- Click on start and access your virtual machine and enjoy your work.

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