Best way to move docker directory #3127

url:https://github.com/docker/docker/issues/3127

 

Soulou commented on 9 Dec 2013

Ok it's done, and it worked quite well:

docker ps -q | xargs docker kill
stop docker
cd /var/lib/docker/devicemapper/mnt
umount ./*
mv /var/lib/docker $dest
ln -s $dest /var/lib/docker
start docker

And Is seems to be working !

 

 2

 

Soulou closed this on 9 Dec 2013

 

 

thomasleveil commented on 20 Feb 2014

ln -s $dest /var/lib/docker

This was the cause of issues with the docker rm command (error about being Unable to remove filesystem)
The solution to avoid having a symbolic link is to start docker with the -g parameter

On Ubuntu that option is to be set in the /etc/default/docker file

DOCKER_OPTS="-g /somewhere/else/docker/"

 

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Docker member

tianon commented on 20 Feb 2014

and if you want to get really fancy, you can use something like:

DOCKER_OPTS="-g $(readlink -f /var/lib/docker)"