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I created a VM using Virtual Box, but I gave it 25 GB, and I had 15 GB free. So I deleted it, and soon, uninstalled Virtual Box, but when I open my filesystem's properties, it is full, I mean to say about 80% of it is still in use, and the vdi file isn't anywhere. How do I free it up?

  • That is why in the future, always use dynamic disk allocation. – Mario Kamenjak Feb 25 '16 at 10:49
  • What does df -h show? – andrew.46 Feb 25 '16 at 11:21
  • Filesystem Size Used Avail Use% Mounted on /dev/sda7 17G 15G 1008M 94% / – Nafees Feb 25 '16 at 11:24
  • You say you "deleted it" before uninstalling VB. What does this mean? – Organic Marble Feb 25 '16 at 12:27
  • I deleted the Virtual Machine only (not the VDI), then uninstalled Virtual Box. – Nafees Feb 25 '16 at 12:34
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By default your VirtualBox files should be located in $HOME/VirtualBox VMs/ so if you navigate there you should easily see if there are any remaining .vdi files still in place.

If your files were in a non-default location try running the following in a Terminal window to find them:

find $HOME -iname *.vdi

And when you find the files you can manually delete them...

References:

  • I've tried that before asking that question, I think it damaged my filesystem, because it must've tried to allocate 25GB, while I had only 15 GB free. – Nafees Feb 25 '16 at 10:28
  • So the find command had no results? – andrew.46 Feb 25 '16 at 10:57
  • yes, no results, 100% sure. – Nafees Feb 25 '16 at 11:07
  • ext4 is quite robust, it doesn't get damaged because of trying to allocate more space than it has available. – Javier Rivera Feb 26 '16 at 7:37
  • Check this question to find what is using your disk space: askubuntu.com/questions/73160/… – Javier Rivera Feb 26 '16 at 7:39
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Uninstall VirtualBox:

sudo apt-get remove --purge virtualbox

Remove all settings:

sudo rm ~/.config/VirtualBox/ -Rf

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