virtualbox.org

So VirtualBox keeps crashing when I try to open Xubuntu and I’ve tried everything. I even deleted it and started over. It worked fine until the next day when it just started crashing again. Anyone have any ideas of how to fix this? Here’s the error:

Failed to open the medium with following ID: {ab5bd259-b043-4254-9734-635e15f9671e}.

The given path ‘{ab5bd259-b043-4254-9734-635e15f9671e}’ is not fully qualified.

Result Code: VBOX_E_FILE_ERROR (0x80BB0004)
Component: MediumWrap
Interface: IMedium {ad47ad09-787b-44ab-b343-a082a3f2dfb1}
Callee: IVirtualBox {d0a0163f-e254-4e5b-a1f2-011cf991c38d}
Callee RC: VBOX_E_OBJECT_NOT_FOUND (0x80BB0001)

The error says the object that is attempting to run is not found, because the path is not qualified. This has happened when people were trying to run a vboxmanage command that expects a drive/path/to/filename, and the person gave the command the object's UUID instead.

How are you trying to open the Xubuntu guest? starting it in the main Virtualbox window? A desktop shortcut? command line?

If a desktop shortcut, try making a new one from the main Virtualbox window.

If from command line, please post the text command you are trying to run.

I'm trying to open it from the VirtualBox window. As soon as I open VirtualBox, that error message pops up before I can do anything. When I x out of the error message and click on Xubuntu, a million of those error boxes pop up until VirtualBox crashes.

Ok, sounds like you are starting the guest from the main Virtualbox window. Please zip and post the guest's .vbox file, using the forum's Upload Attachment tab.

Here's another idea. I assume you have a Windows host:

Reboot your host so no Virtualbox processes are running.
Go to C:\Users\{you}
Move the .Virtualbox folder (note the period . starting the folder name) to the desktop. Virtualbox will see the .Virtualbox folder missing and reset. Your guests will remain available for re-registering. Don't register them yet, though.
Start Virtualbox. No guests will be in the guest list. Make a new guest, get it installed and running, then see if you can shut it off, reboot the host, start it, etc.
If the new guest is stable, register your old guest: Machine menu, Add command, find the guest's .vbox file. Try this guest to see if it is stable.