Linux卸载和安装yum

た入场券 2022-03-19 02:53 364阅读 0赞

查看系统版本

lsb\_release -a

![20190214170056444.png][]

版本为[centos][]7

查看是否安装了yum

rpm -qa yum

如果有先卸载

rpm -qa | grep yum | xargs rpm -e --nodeps

本文用的centos7所以去http://mirrors.163.com/centos/7/os/x86\_64/Packages/ 下找

wget http://mirrors.163.com/centos/7/os/x86\_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm  
wget http://mirrors.163.com/centos/7/os/x86\_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86\_64.rpm  
wget http://mirrors.163.com/centos/7/os/x86\_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm  
wget http://mirrors.163.com/centos/7/os/x86\_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm  
如果Linux服务器上不了外网，先下载到本地，通过ftp上传到服务器

![20190214170404350.png][]

因文件有相互依赖性，注意顺序，故先安装python-iniparse-\*.rpm 文件

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-3.4.3-158.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm  
更新repo文件  
进入 /etc/yum.repos.d文件夹下

下载yum源：  
进入：http://mirrors.163.com/.help/centos.html  
里面有下载对应版本repo文件, 放入/etc/yum.repos.d/(操作前请做好相应备份)

也可以用命令：

wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

![20190214172038470.png][]

删除原来的配置文件

rm -rf CentOS-Base.repo  
修改新配置文件名

mv CentOS7-Base-163.repo CentOS7-Base.repo

![2019021417232038.png][]

[20190214170056444.png]: /images/20220319/2ae744800f5e4b34a516a54e1734689b.png
[centos]: https://www.baidu.com/s?wd=centos&tn=24004469_oem_dg&rsv_dl=gh_pl_sl_csd
[20190214170404350.png]: /images/20220319/a70f82cd45bd4988a2822d1abbc07c14.png
[20190214172038470.png]: /images/20220319/ca50962d9bd447bcb2fe1c73d16c6d80.png
[2019021417232038.png]: /images/20220319/a59693cb68b74e92a5118b477c4f4928.png