Impossible to switch an image to "immutable" after creating a snapshot

[Ronny Standtke]

During installation of a complex system I took several snapshots. Now I want to use the latest state with the "immutable" feature. This seems to be impossible. Even though I removed the image from the virtual machine the image stays somehow attached to the machine, propably because of the snapshots.

Here is the console output of the unregisterimage command:

$ VBoxManage unregisterimage disk XPSP2.vdi VirtualBox Command Line Management Interface Version 1.5.2 (C) 2005-2007 innotek GmbH All rights reserved.

[!] FAILED calling virtualBox->UnregisterHardDisk(uuid, hardDisk.asOutParam()) at line 5245! [!] Primary RC = 0x80004005 [!] Full error info present: true , basic error info present: true [!] Result Code = 0x80004005 [!] Text = Hard disk '/home/ronny/.VirtualBox/VDI/XPSP2.vdi' is attached to a virtual machine with UUID {a6321a23-ac5d-456c-2bbb-5779e5f21a55} [!] Component = HardDisk, Interface: IHardDisk, {fd443ec1-000f-4f5b-9282-d72760a66916} [!] Callee = IVirtualBox, {76b25f3c-15d4-4785-a9d3-adc6a462beec}

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.