Linux 安装 Docker 失败_command line error: no such option: --add-repo-优快云博客

本文链接：https://blog.youkuaiyun.com/calm_encode/article/details/122388446

在尝试使用yum-config-manager命令从阿里云镜像源安装Docker时遇到Timeout错误，而切换到Docker官网镜像源后安装成功。问题可能在于网络连接或镜像源服务器响应。解决方法是更换可靠的镜像源。

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一失败

命令：

yum-config-manager

> --add-repo

> http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

失败信息：

Loaded plugins: fastestmirror
adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
Could not fetch/save url http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to file /etc/yum.repos.d/docker-ce.repo: [Errno 12] Timeout on http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo: (28, 'Resolving timed out after 30646 milliseconds')

二成功

命令：

sudo yum-config-manager \
> --add-repo \
> https://download.docker.com/linux/centos/docker-ce.repo

成功信息：

Loaded plugins: fastestmirror
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo

参考：Install Docker Engine on CentOS | Docker Documentationhttps://docs.docker.com/engine/install/centos/