How to resize a VirtualBox vmdk file
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I've run out of space on a virtual machine disk which is a vmdk and need to resize the virtual image. Resizing with the command `vboxmanage modifyhd Machine-disk1.vmdk --resize 30720` gives the error `Progress state: VBOX_E_NOT_SUPPORTED
VBoxManage: error: Resize hard disk operation for this format is not implemented yet!`. How can I resize a vmdk image?
