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  • Centos7重装yum

    tip:重装yum原因非Python2卸载原因,亲测有效+踩坑

    查询原有yum

    • rpm -qa |grep yum

    删除原有yum应用

    • rpm -aq|grep yum|xargs rpm -e –nodeps
    • rpm -qa |grep yum

    查询原有yum配置

    • whereis yum
    • rm -fr /etc/yum

    下载yum所有rpm包(阿里镜像维护,使用清华镜像)

    此处需要4个包

    wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm
    wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
    wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm
    wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
    

    安装

    rpm -ivh python-iniparse-0.4-9.el7.noarch.rpm
    rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
    rpm -ivh yum-3.4.3-168.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm
    

    注意:最后两个包要同时安装(相互之间存在依赖)

    更新repo文件

    安装yum-config-manager[非必须]

    yum install -y yum-utils device-mapper-persistent-data lvm2

    稳定 docker仓库

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


    此时出现异常

    [root@grasp-38-60 opt]# yum-config-manager --add-repo     https://download.docker.com/linux/centos/docker-ce.repo
    Traceback (most recent call last):
      File "/bin/yum-config-manager", line 6, in <module>
        import yum
    ImportError: No module named yum
    
    • 解决:(问题是未找到默认Python版本)
      • vim /usr/bin/yum-config-manager
      • 修改 #!/usr/bin/python -tt#!/usr/bin/python2 -tt

    所有完成,可以成功使用yum及相关工具

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  • 原文地址:https://www.cnblogs.com/jmtang/p/14596583.html
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