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I have installed Ubuntu 16.04 alongside Windows 10. The Ubuntu partition has 419 GB, and another 8 GB to swap. My issue is that when the installation is finished, when I log in to Ubuntu, second by second the memory space is used without my installing anything.

Used 8,3G

Then after some minutes:

Used 11G

And then after a lot of minutes:

Used 48G

Used 55G

This happens until Ubuntu runs out of space. I reinstalled Ubuntu many times but it's still happening.

UPDATE 1

I used ncdu command and I get it

ncdu

df -h

df -h

sudo find / -xdev -type f -size +100M

find size

UPDATE 2

syslog file

syslog

  • See askubuntu.com/questions/73160/… for tools to analyze disk usage. – N0rbert Jul 26 '18 at 15:01
  • Thanks for your response, but Im a really novice, so, I dont know what to do. I execute all commands that display in the links and the output is /var/log/syslog.1 /var/log/kern.log /var/log/syslog , I dont know what to do! – Carlos Andres Jul 27 '18 at 0:47
  • Is correct delete the files /var/log/syslog.1 /var/log/kern.log /var/log/syslog? – Carlos Andres Jul 27 '18 at 0:58
  • Youre right, I deleted it files and my memory space decreace again. How can I fix ? I dont know what more to do – Carlos Andres Jul 29 '18 at 7:13
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Ok , I solved my issue. The first step was see what is the files which have a lot of disk space in my machine. For that, I executed this command suggested by dsstorefile1:

find / -xdev -type f -size +100M

Where the most file which have disk space occupied was:

/var/log/kern.log /var/log/syslog

Then, I opened the file syslog to see what is the issue which fill my syslog, and I find this issue:

PCIe Bus Error, id=00e8

So, searching in the internet, I came to the answer that gave me solution:

  1. edit /etc/default/grub and and add pci=noaer to the line starting with GRUB_CMDLINE_LINUX_DEFAULT. It will look like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=noaer"
  2. run "sudo update-grub"
  3. reboot

REFERENCE: "PCIe Bus Error, id=00e8" both 16.04 and 17.04

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