Ejecting a mounted CD/DVD-ROM image by guest OS does not unmount it

[tomers]

Setup

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• Host OS: Windows XP Home Edition SP3, VirtuaBox 1.6.2
• Guest OS: Ubuntu 8.04

To reproduce

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• Mount a CD/DVD-ROM image to the guest OS.
• Eject the mounted media device by the guest OS (right-click the CD icon on the desktop, and choose 'Eject'.

Expected results

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• The user expects to have that CD/DVD-ROM image automatically unmounted. In case he wants to load that image back to the guest OS, he knows he can mount it through the VirtualBox GUI.

Observed results

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• The disk disappears from the guest OS (OK).
• The image is still considered mounted by VirtualBox.
• It is possible to manually unmount it, and that's fine.
• It is not possible to load the image back to the guest OS, unless manually unmounting it first.

[frank]

Fixed in VirtualBox 4.1.