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I have 10 GB for the root and 30 GB for the home folder. Home folder is 7 GB used up and it shows the root folder's space is 100% in use, of which 70% usage is home folder.

I am unable to install any new software cause of the disk space error. Trying to delete anything I installed, clearing the trash, clears out the space from the home folder but doesn't effect the other one.

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  • If you've got /home as a separate partition, as you're suggesting it won't take up the space from /. Can you Edit your question with the output of sudo du -hs /*, sudo df -h
    – AJefferiss
    Nov 17, 2015 at 9:23
  • Post the result of df -H into your question. And you better not have / and /home as different partition because I would assume you understand what that means. Deleting stuff from /home frees space from /home but you assume this affects / how exactly? And please explain what you put on / that made it fill up 10Gb. For a plain desktop 10Gb is more than enough.
    – Rinzwind
    Nov 17, 2015 at 9:23
  • also edit into the question results of du -a /var | sort -n -r | head -n 10. This will show the 10 largest dirs and files. Maybe you put personal data into / without realizing ;)
    – Rinzwind
    Nov 17, 2015 at 9:24
  • clearing the trash, clears out the space from the home folder but doesn't effect the other one. Then it is likely that you do have /home on a different partition rather than as part of /. Which means something else is taking up space on /. The du commands from other will show the still existing largest files, which may help. If those do not then please try the following:
    – Hennes
    Nov 17, 2015 at 10:27
  • 0) Reboot. If disk space mysteriously drops and you might have open (and in use) but already deleted files. Not uncommon with logfiles. 1) Reboot and put the output of mount (or /etc/fstab) in your post. 2) Clean /tmp (assuming it is a real filesystem and not a ramdisk).
    – Hennes
    Nov 17, 2015 at 10:29

1 Answer 1

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just check with

du -hsx /* | sort -rh | head -10

you folder sizes of your system. Maybe there are some big files you doesn't need.

Alterative you can enlarge you root partition.

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