March 27, 2015
I ran out of disk space in my home directory because VirtualBox images were taking too much space. I wanted to move them to my data partition that has way more space, but I could not find a way to do this with the VirtualBox GUI.
However, while I found no documentation on the subject, it’s really easy to do by moving the images, and updating the VirtualBox configuration file accordingly:
mv /home/val/VirtualBox\ VMs/* /data/virtualbox
Then edit the VirtualBox configuration file, depending on the version
~/.VirtualBox/VirtualBox.xml, to replace the old path with the new
sed -i 's,/home/val/VirtualBox VMs,/data/virtualbox,' ~/.config/VirtualBox/VirtualBox.xml
Restart VirtualBox, and everything should work, but the images are now on the other partition!