I want to check my file usage with programs like https://wiki.ubuntuusers.de/Festplattenbelegung/ for the files on my partitions on which / (root) is on. However, there are many other files systems mounted into the file system somewhere. Those I do not want to check out - only my root partition. How can I exclude those? I would like to use a GUI program (so not du). I thought that I either find a program in which can do the exclusion, but I haven't found one. I thought another option might be if I could mount my root device (/dev/mapper/mylvg-myrootpartition) to another location additionally to the normal mount to / and analyse this second mount folder, but I haven't managed to do that. Ideas?


There are gui tools, but give ncdu a try. It's a cli tool, fast and allows you to navigate directories whilst easily viewing the usage % of each dir.

ncdu -x /

If it really must be an X gui tool, I found the source code of that unix interface from Jurassic Park a while ago, was good for a laugh... will try to find...

  • here is that Jurassic Park one: git@github.com:mcuelenaere/fsv.git – mikejonesey Oct 24 '16 at 13:20
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    ncdu does the trick! – Michael Yaeger Dec 16 '16 at 22:29
  • This answer was exactly what I was looking for. – David Refoua Sep 22 '18 at 21:40

GNOME's Disk Usage Analyzer (also known as Baobab) limits itself to single filesystems: thus, asking it to analyse / won't include /home if that's a separate filesystem, or /proc, /sys etc.

When you explicitly open a folder for analysis in Baobab, there's a check-box you can use to toggle that behaviour:

"Recursively analyze mount points"

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