要重启Docker守护程序（daemon），请按照以下步骤进行操作：
- 停止 Docker 守护程序
sudo systemctl stop docker
- 启动 Docker 守护程序
sudo systemctl start docker
- 检查 Docker 守护程序状态
sudo systemctl status docker
如果一切正常，您应该看到类似以下的输出：
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2021-09-17 14:23:43 UTC; 4s ago
Docs: https://docs.docker.com
Main PID: 12345 (dockerd)
Tasks: 8
Memory: 39.7M
CPU: 630ms
CGroup: /system.slice/docker.service
├─12345 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
└─12356 containerd --config /var/run/containerd/containerd.toml --log-level info
Sep 17 14:23:43 ubuntu systemd[1]: Starting Docker Application Container Engine...
Sep 17 14:23:43 ubuntu dockerd[12345]: time="2021-09-17T14:23:43Z" level=info msg="Starting up"
Sep 17 14:23:43 ubuntu dockerd[12345]: time="2021-09-17T14:23:43Z" level=info msg="parsed scheme:
Sep 17 14:23:44 ubuntu dockerd[12345]: time="2021-09-17T14:23:44.026732043Z" level=info msg="scheme
Sep 17 14:23:44 ubuntu dockerd[12345]: time="2021-09-17T14:23:44.029011304Z" level=info msg="restar
Sep 17 14:23:44 ubuntu systemd[1]: Started Docker Application Container Engine.
如果您仍然遇到错误，请提供更多详细信息，以便我们能够帮助您找到解决方案。
