RedHat更换阿里云CentOS的yum源

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RedHat更换阿里云CentOS的yum源完整版

一 卸载自带软件包

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

二 保证上网正常

ping www.baidu.com

三 进入以下网站下载对应的包

1 阿里云网络源地址:

https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/

2 网易163网络源地址:

http://mirrors.163.com/

3 CentOS网络源地址:

http://centos.ustc.edu.cn/centos/
使用CTRL+F输入关键字查找对应的安装包即可。

四 找到安装包后下载下来

若出现404错误去重新查询最新rpm包的链接
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-45.el7.noarch.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-8.el7.noarch.rpm

五 强制安装rpm包

--force --nodeps忽略依赖检测的强制安装
rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm --force --nodeps
rpm -ivh yum-3.4.3-158.el7.centos.noarch.rpm --force --nodeps
rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm --force --nodeps
rpm -ivh yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm --force --nodeps
rpm -ivh yum-utils-1.1.31-45.el7.noarch.rpm --force --nodeps

六 查看yum相关的包是否已安装

[root@localhost ~]# rpm -qa |grep yum
yum-utils-1.1.31-45.el7.noarch
yum-3.4.3-158.el7.centos.noarch
yum-plugin-fastestmirror-1.1.31-45.el7.noarch
yum-metadata-parser-1.1.4-10.el7.x86_64
[root@localhost ~]# rpm -qa |grep python-urlgrabber
python-urlgrabber-3.10-8.el7.noarch

七 修改repo

1 下载源文件
curl -o /etc/yum.repos.d/CentOS-7.repo http://mirrors.aliyun.com/repo/Centos-7.repo
2 需要把CentOS-7.repo文件中的$releasever全部替换为7
cd /etc/yum.repos.d/
vim CentOS-7.repo
3 在vim中执行:%s/$releasever/7/g快速替换。保存退出。
:%s/$releasever/7/g
八 清空重载yum
yum clean all
yum update

参考链接

https://blog.csdn.net/feng_zhiyu/article/details/80464336

https://www.jianshu.com/p/fd00c304ae5d