Centos更改阿里YUM源

/ 下载阿里云源文件
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

// 替换 阿里云镜像地址
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo

// 建立缓存
yum makecache
但是很多时候,执行makecache特别慢,是因为CentOS-AppStream.repo的镜像还没改:
直接暴力修改:
vim /etc/yum.repos.d/CentOS-AppStream.repo
修改这个为:
baseurl=https://mirrors.aliyun.com/centos/basearch/os/
完成的内容如下:
[AppStream]
name=CentOS-$releasever - AppStream

加上这一条就行了

baseurl=https://mirrors.aliyun.com/centos/basearch/os/

gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
之后执行
yum clean all
yum makecache

Centos7更新阿里源:

  1. 备份原镜像文件,便于后期恢复

$sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2.下载新的CentOS-Base.repo 到/etc/yum.repos.d/

sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

  1. 清除缓存

yum clean all

  1. 生成缓存

yum makecache

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