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I have a Desktop PC that I rarely use. Today I booted up this PC to do the updates and to organize some folders but reading my conky I saw that the / (root) partition is almost full. I have 23 GB of this and 20 GB are used. These are my partitions: enter image description here

On my lapotop I have the same programs and the same space of root partition but I have got only 4 GB used. How can I solve this problem, I think that is impossible to have 20 GB files in / . Where and what I have to check for solve? thank you

with sudo baobab allow my to see a big file in desktop that I didn't able to see with nothing. Now my root partition, now I have 13 GB used instead of 20. I post 2 pictures with the files that fill the partition. enter image description here

enter image description here

these are the kernel image right? How can I delete them (I remember that some time ago I deleted these files with very bad results)?

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  • You can visualise what's taking the space using sudo baobab. May be the cached apt-get packages. Try running sudo apt-get clean and sudo apt-get autoremove. – Ashhar Hasan Dec 5 '15 at 20:41
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    The following command will help figure out where the space is: du -s /* 2>/dev/null | sort -nr. You may want to add its output to the question for review. – mikewhatever Dec 5 '15 at 20:44
  • @mikewhatever That's slow, but I learned something new. Any way to get it to do its thing based on individual files instead of directories? – Ashhar Hasan Dec 5 '15 at 20:55
  • I edited my answer with new informations – linofex Dec 5 '15 at 21:09
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You have way too many kernels and headers installed. I'd recommend removing all, but the most recent. There are several ways to do it, I like this one:

dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | grep -E "(image|headers|modules)" | xargs sudo apt-get -y purge

...explained here

Other then that, I see nothing obviously wrong. What you have on the desktop should add up to the home partition, and not /.

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  • Thanks for the command, I deleted all the old kernels, now root partition uses only 5 GB. I don't know why, but under the / partition with sudo baobab command has showed the desktop folder and after clean it the space on root partition was clean. – linofex Dec 5 '15 at 21:44

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