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on my small homeserver running Ubuntu 16.04 LTS I have run out of diskspace on my system disk root partition for some reason. The device is a 128Gb SSD with the following status:

df -h:

Dateisystem                       Größe Benutzt Verf. Verw% Eingehängt auf
udev                               3,8G       0  3,8G    0% /dev
tmpfs                              769M     12M  757M    2% /run
/dev/mapper/wuerfelchen--vg-root    22G     21G  403M   99% /
tmpfs                              3,8G    8,0K  3,8G    1% /dev/shm
tmpfs                              5,0M       0  5,0M    0% /run/lock
tmpfs                              3,8G       0  3,8G    0% /sys/fs/cgroup
/dev/sda2                          473M    246M  203M   55% /boot
/dev/sda1                          511M    3,6M  508M    1% /boot/efi
/dev/mapper/wuerfelchen--vg-homes   87G    541M   82G    1% /home
tmpfs                              769M       0  769M    0% /run/user/1000

sudo du -hsx /* | sort -rh | head -n 40:

12G /root
3,7G    /usr
3,6G    /var
1,1G    /lib
485M    /home
260M    /opt
244M    /boot
125M    /home_old
16M /bin
14M /sbin
12M /run
12M /etc
132K    /tmp
32K /mnt
16K /media
16K /lost+found
8,0K    /snap
8,0K    /export
4,0K    /srv
4,0K    /lib64
4,0K    /dead.letter

So, I can see, the folder /root is using 12G of the total 22G partition size, but I can't access the folder. What data is kept inside there? Can I check that somehow?

Thanks for help in advance!

sandman

sandman85
  • 31

2 Answers2

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sudo du -h /root

gives me the following:

root@wuerfelchen:/# sudo du -h /root 
8,0K    /root/.ssh
8,0K    /root/.config/Duplicati/control_dir_v2
12G /root/.config/Duplicati
12G /root/.config
8,0K    /root/.nano
12G /root

So there seems to be a bug with Duplicati... But I have no idea why duplicati is able to read and write to /root...

EDIT: As Duplicati is running as a deamon, the default behaviour of duplicati is to store its backup database to /root/.config/Duplicati. The solution is to move the database to a different place: https://forum.duplicati.com/t/how-to-change-the-local-database-file-location/1394

sandman85
  • 31
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It seems you have root access, so a simple sudo bash should get you a root shell and you can simply cd /root and ls to have a look. If you don't own the files in /root you should probably find out who does before moving them :)

Brian Richardson
  • 126