id summary reporter owner description type status component version resolution keywords cc guest host 6467 Out of disk space error can lead to loss of virtualbox.xml JeffWithAVbox "I ran out of space on the partition that I have VB writing hard disk images. It did a smart thing, and paused the virtual machine I was using. I tried to free up enough disk space, but wasn't succeeding. Something was eating space as I freed it. I decided I needed a new, bigger, better HD, so I closed virtual machine, which went smoothly. And closed vb, which appeared to go fine. Then I shut down the physical machine to install another drive. On restarting, I tried to open vb and got an error. My virtualbox.xml file was zero length. I surmise from this that there is an error in the code. It's not making a copy of the existing vb before trying to save a new one, or renaming it. And it's not checking that there is some space before deleting virtualbox.xml. This would be a better strategy in low-disk situations, and have stopped me from losing all my virtual machine setups. Classified as minor because it only ever has an impact if you run out of space. " defect closed other VirtualBox 3.1.2 fixed Windows Linux