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howto - change default docker directory.md

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+# How to move the default /var/lib/docker to another directory for Docker on Linux?
+
+[How to move the default /var/lib/docker to another directory for Docker on Linux? | DigitalOcean](https://www.digitalocean.com/community/questions/how-to-move-the-default-var-lib-docker-to-another-directory-for-docker-on-linux)
+
+- Stop the server: `sudo systemctl stop docker`
+- Create/edit the configuration at `/etc/docker/daemon.json`, for example: `{ "data-root": "/new/path/docker-data-root" }`
+- Copy your data there:
+    
+```shell
+sudo cp -axT /var/lib/docker /new/path/docker-data-root
+```
+    
+(if the target `docker-data-root` directory already exists, make sure you don’t accidentally copy into a `docker` subdirectory).
+    
+- Start the server:
+    
+```shell
+sudo systemctl start docker
+```
+    
+- Check everything works:
+    
+```shell
+sudo docker images
+```