Re: [VBox-users] how to remove an unaccessible disk from an older snapshot?

[Voelker, Bernhard]

Mark Cranness wrote:

> On 1 November 2011 00:26, Voelker, Bernhard wrote:
> > I have a VM with 3 consecutive snapshots, but there's an inaccessible
> > VDI attached to the oldest snapshot. Actually, I removed that file
> > after attaching a clone of it to the VM ... bad idea. :-(
> 
> Close down all running VMs, and the VBox UI, and make sure no
> instances of VirtualBox.exe or VBoxSvc.exe are running, then...
> 
> Manually edit the VirtualBox.xml and <VM>.xml files to patch up the
> snapshots and remove the inaccessible VDI.
> 
> BACKUP beforehand.
> 
> AFAIK, for VB 3.x, you will need to edit the VirtualBox.xml AND
> <VMName>.xml files.
> For VB 4.x, you will only need to edit the <VMName>.vbox file.

Thanks for the suggestion, however, it didn't work.

I removed the <HardDisk> from the <MediaRegistry>, and the corresponding
<AttachedDevice> from the <StorageController> of the <Snapshot>:


<VirtualBox ...>
  <Machine ...>
    ...
    <MediaRegistry>
      <HardDisks>
        <HardDisk uuid="{216377c7-1bc3-4047-bba9-a00fff877f9b}" 
location="ecside.vdi" format="VDI" type="Normal">
          <HardDisk uuid="{af9ffb1a-3ce4-419c-ab45-1129ddb5c9b7}" 
location="Snapshots/{af9ffb1a-3ce4-419c-ab45-1129ddb5c9b7}.vdi" format="VDI">
            <HardDisk uuid="{6ce508d3-d535-4238-aaf0-db1018a3d243}" 
location="Snapshots/{6ce508d3-d535-4238-aaf0-db1018a3d243}.vdi" format="VDI"/>
          </HardDisk>
        </HardDisk>
        ...
      </HardDisks>
    </MediaRegistry>
    <Snapshot...>
      ...
      <StorageControllers>
        <StorageController name="IDE Controller" type="PIIX4" PortCount="2" 
useHostIOCache="true" Bootable="true">
          <AttachedDevice type="HardDisk" port="0" device="0">
            <Image uuid="{216377c7-1bc3-4047-bba9-a00fff877f9b}"/>
          </AttachedDevice>
          ... other devices ...
        </StorageController>
      </StorageControllers>
    </Snapshot>
  </Machine>
</VirtualBox>

But after that, VBox came up with this message:

  Failed to open virtual machine located in D:/ECSIDEVM/ecsidevm/ecside.vbox.

  Medium 'D:\ECSIDEVM\ecsidevm\ecsidevm-disk3.vdi' cannot be closed because it 
is still attached to 1 virtual machines.

  Result Code: VBOX_E_OBJECT_IN_USE (0x80BB000C)
  Component: Medium
  Interface: IMedium {53f9cc0c-e0fd-40a5-a404-a7a5272082cd}
  Callee: IVirtualBox {c28be65f-1a8f-43b4-81f1-eb60cb516e66}
  Callee RC: E_FAIL (0x80004005)
 
This is irritating, because that is not the VDI I removed but another one.

Do you think I could have more luck with a clone of the VM?

Thank you & have a nice day,
Berny
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