Full OS Drive

Getting lots of errors that my OS drive is full. My docker is going to an external drive (not my OS drive)

I have tried clearing cache, docker system prune, omv-firstaid. The output of df shows my OS system drive is 100% but the output of ncdu -xshows the total size of all folders about 6GB (my OS drive is 20GB), so confused / can't locate where the folder taking up space?

EDIT: Output of du -d1 -h / 

root@omv:/# du -d1 -h /

4.0K /export

0 /sys

32K /tmp

0 /dev

6.9M /etc

160K /root

50M /run

2.8G /usr

du: cannot access '/proc/3237/task/3237/fd/3': No such file or directory

du: cannot access '/proc/3237/task/3237/fdinfo/3': No such file or directory

du: cannot access '/proc/3237/fd/4': No such file or directory

du: cannot access '/proc/3237/fdinfo/4': No such file or directory

du: cannot read directory '/proc/3274/task/3274/net': Invalid argument

du: cannot read directory '/proc/3274/net': Invalid argument

du: cannot read directory '/proc/3275/task/3275/net': Invalid argument

du: cannot read directory '/proc/3275/net': Invalid argument

du: cannot read directory '/proc/3276/task/3276/net': Invalid argument

du: cannot read directory '/proc/3276/net': Invalid argument

du: cannot read directory '/proc/3277/task/3277/net': Invalid argument

du: cannot read directory '/proc/3277/net': Invalid argument

du: cannot read directory '/proc/3278/task/3278/net': Invalid argument

du: cannot read directory '/proc/3278/net': Invalid argument

0 /proc

8.0K /media

4.0K /config_directory

2.4G /var

205M /boot

4.0K /home

69M /opt

16K /sharedfolders

4.0K /mnt

2.9T /srv

16K /lost+found

2.9T /

Zitat von macom

[How-To] Fix full OS filesystem - GUI login loop

And continue in this thread instead of the other one

Yes I had already gone through all of those steps. In the end, I just deleted all of my backups as somehow it is going to my root drive (even though I haven't touch OMV for a while and the external drive has plenty of space!)

My docker goes to an external drive but I noticed in /var/lib/docker/overlay2 there appears to be a whole bunch of docker files (about 1.9GB) - I presume this can be deleted from my root drive as all docker + containers are on an external hard drive?

Also noticed these module files some of which look old - can they be deleted?

--- /usr/lib/modules -----------------------------------------------------------

/..

289.1 MiB [##########] /5.10.0-0.bpo.5-amd64

288.9 MiB [######### ] /5.10.0-0.bpo.3-amd64

276.7 MiB [######### ] /5.9.0-0.bpo.5-amd64

275.5 MiB [######### ] /5.8.0-0.bpo.2-amd64

271.8 MiB [######### ] /5.6.0-0.bpo.2-amd64

4.3 MiB [ ] /5.5.0-0.bpo.2-amd64

4.3 MiB [ ] /5.3.0-0.bpo.2-amd64

4.2 MiB [ ] /4.19.0-5-amd64

Zitat von macom

What is the output of

docker info | grep Root

root@omv:~# docker info | grep Root

Docker Root Dir: /srv/dev-disk-by-label-Chimp/AppData2/Docker

Zitat von macom

apt-get autoremove --purge

should do

unfortunately this did not remove anything