Opened 6 years ago

Last modified 6 years ago

#18185 new defect

Windows host removes HardDisks section if the version attribute is "1.15-macosx"

Reported by: Shonn Owned by:
Component: other Version: VirtualBox 5.2.22
Keywords: Cc:
Guest type: Windows Host type: all


I have a Windows guest that I open in both Mac and Windows hosts. The Mac is the laptop that I use when I'm working remotely, and the Windows is my home office computer.

Usually, there isn't a problem with that, as long as I do a full shutdown of the guest before switching.

However, it seems that the Windows host will sometimes delete the MediaRegistry/HardDisks section in the .vbox file on opening if it has a version of "1.15-macosx". The same file is untouched if it has a version of "1.15-windows".

All of the changes that it does:

  • Removes MediaRegistry/HardDisks section
  • Sets Memory RAMSize from 8192 to 128
  • Removes Hardware/Display
  • Removes Hardware/VideoCapture
  • Removes Hardware/BIOS
  • Removes child elements and all attributes except type="Am79C973" from Network/Adapter slot="0"
  • Removes Hardware/Clipboard
  • Removes Hardware/DragAndDrop
  • Removes StorageControllers

Change History (2)

comment:1 by Shonn, 6 years ago

Now that I've tested it again, it's not version="1.15-macosx" that is doing it. If I remove the VM from the Manager then re-add it. It works fine and doesn't alter the .vbox file, even the version attribute.

comment:2 by Socratis, 6 years ago

That sounds like a broken VBoxSVC process. That's responsible (for one) for keeping the VM settings in memory. If that crashes somehow, these are the symptoms I'd expect to see.

  • Can you check whether there's VBoxSVC running when this happens?
  • Any logs, any indications in the Event Viewer for example?
  • Any specific conditions that triggers it?
  • How reproducible is this?
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