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安装docker 遇到的坑

程序员文章站 2022-05-14 20:43:10
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不管输入啥 报错如下

已加载插件:fastestmirror, langpacks, update-motd
Loading mirror speeds from cached hostfile
base                                                                                                                                                       | 3.1 kB  00:00:00
http://mirrors.aliyun.com/docker-ce/linux/centos/2.1903/x86_64/stable/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
正在尝试其它镜像。


 One of the configured repositories failed (Docker CE Stable - x86_64),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled
            yum --disablerepo=docker-ce-stable ...

     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:

            yum-config-manager --disable docker-ce-stable
        or
            subscription-manager repos --disable=docker-ce-stable

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=docker-ce-stable.skip_if_unavailable=true

failure: repodata/repomd.xml from docker-ce-stable: [Errno 256] No more mirrors to try.
http://mirrors.aliyun.com/docker-ce/linux/centos/2.1903/x86_64/stable/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

网上博客方案:

博客一:1、yum clean all    2、yum makecache      运行之后,我这问题没解决,还是这样

博客二:1.使用这个 sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo(这是由于国内访问不到docker官方镜像的缘故 
可以通过aliyun的源来完成)

          2. 运行命令安装:sudo yum install docker-ce    结果还是报上处错误

          3.分析原因为:阿里的镜像库文件也指向docker官方库,所以需要修改库文件   sudo vim /etc/yum.repos.d/docker-ce.repo
            通过命令把https://download-stage.docker.com替换为http://mirrors.aliyun.com/docker-ce
            命令如下:
                 :%s#https://download-stage.docker.com#http://mirrors.aliyun.com/docker-ce#g(实际上跟博客二 第一个步骤效果是一样的,所以这个第三步 也不行)

解决方法:

     运行如下命令:

yum-config-manager --save --setopt=docker-ce-stable.skip_if_unavailable=true

解释:上面的意思是  失败就跳过!顶上的报错就是 404 找不到这个东东!!!!找不到啊,那就不要了安装docker 遇到的坑

 搞定!