先Docker info 查看基本信息
root@ubuntu:~# docker info Containers: 2 Running: 0 Paused: 0 Stopped: 2 Images: 39 Server Version: 18.05.0-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88 runc version: 4fc53a81fb7c994640722ac585fa9ca548971871 init version: 949e6fa Security Options: apparmor seccomp Profile: default Kernel Version: 4.4.0-124-generic Operating System: Ubuntu 16.04.4 LTS OSType: linux Architecture: x86_64 CPUs: 16 Total Memory: 15.66GiB Name: allbak ID: WDR7:SQTX:YHIB:2UCU:EY4X:RFST:INQY:EBGT:HO7M:4WFU:XXBI:YXSW Docker Root Dir:
docker默认位置/var/lib/docker
以下是修改步骤：
1.停止docker
root@ubuntu:~# /etc/init.d/docker stop
2.迁移Docker路径
root@ubuntu:~# cd /var/lib/ root@ubuntu:~# mv docker /media/sdj1/
3.建立软连接
ln -s /media/sdj1/docker docker
4.启动docker
root@ubuntu:~# /etc/init.d/docker start
5.docker info 再次查看信息
root@ubuntu:/var/lib/docker# docker info Containers: 2 Running: 0 Paused: 0 Stopped: 2 Images: 39 Server Version: 18.05.0-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88 runc version: 4fc53a81fb7c994640722ac585fa9ca548971871 init version: 949e6fa Security Options: apparmor seccomp Profile: default Kernel Version: 4.4.0-124-generic Operating System: Ubuntu 16.04.4 LTS OSType: linux Architecture: x86_64 CPUs: 16 Total Memory: 15.66GiB Name: allbak ID: WDR7:SQTX:YHIB:2UCU:EY4X:RFST:INQY:EBGT:HO7M:4WFU:XXBI:YXSW Docker Root Dir: /media/sdj1/docker