I'm on Ubuntu GNOME 17.04 (installed in May over Windows 10) and today I suddenly found my laptop too slow, so I did a BleachBit clean. Nothing better happened, then Ubuntu told me my filesystem is full. I was: "WTF? I have about 800GB free!", so I took a look to the situation: Here is my only partition

Then I opened "Disk usage analyzer" and I found this:

Disk usage analyzer

So I did a little clean to the /home folder, I deleted around 1GB of inutilities and my laptop is now going well. BUT I can't understand why the / size is wrong and so little... I think it's not normal and I want to resolve this annoying problem. Can anybody help me? And... Can I resize the /home folder?

Here's my df -h outputdf -h output

And here's my df -i output

df -i output

  • 1
    Please add the output of df -h to your question. – Chai T. Rex Jul 24 '17 at 23:08
  • I did it, thank you for the tip. Taking here a look I don't find something strange... – nplezka Jul 25 '17 at 10:46
  • Everything looks good. – Pilot6 Jul 25 '17 at 10:51
  • But what about the full root folder? It is not and I don't know where to touch :( I manually occupied about 70GB, it's not that big number... – nplezka Jul 25 '17 at 10:54
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    The second picture tells you that /home is using MOST space, 78.2 GB ... not that /home is full. You still have more than 780 GB free in /. You will have to find th exact situation, command and error when you get the full-message, before anyone can help you. – Soren A Jul 31 '17 at 16:28

You most likely ran BleachBit with a free space shredding.
When a file is deleted, it isn't actually removed from the disk, just the reference to the file is removed and the space is made available for use. Bleachbit and other utilities have a method to remove file remnants by overwriting them.

The process of erasing free space is to make a file and fill it with zeros until all disk space is used. Then the file is deleted. depending on security level chosen this may be done several times.

Considering the size of your HDD, it would have been quite sometime for the process to complete in the background.


According to this page, the size that Disk Analyzer show to you is the currently allocated/used space, not the available space of your partition.

Therefore, you aren't running out of disk space, because df command and gparted show that you still have a lot of space.

As you can see in the following screenshot, it seems that also my / folder is full. However I assure you that I still have more than 100GB free in / partition.

disk analyzer on my pc

Instead of focusing on the graph, you should watch the main window that you get as soon as you open the tool. It shows you how much space you are using over the available space:

enter image description here

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