一趟子操作:

本一趟子操作只针对 CentOS 7

## 全文地址
https://developer.aliyun.com/mirror/centos?spm=a2c6h.13651102.0.0.646a1b11kNcf9F

## 1 备份原有yum源配置
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

## 2 下载yum源配置
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

## 3 消除告警提示
## 非阿里云ECS用户会出现 Couldn't resolve host 'mirrors.cloud.aliyuncs.com' 信息,不影响使用。用户也可自行修改相关配置: eg:
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo

## 4 生成缓存
yum makecache

## 5 安装依赖 此依赖匹配 PostgreSQL
yum -y install make gcc gcc-c++ gzip bzip2 tar readline readline-devel zlib zlib-devel openssl openssl-devel lz4 flex bison perl --downloaddir=/home/rpm

相关链接

官方主页: http://www.centos.org/

邮件列表: https://wiki.centos.org/GettingHelp/ListInfo

论坛: https://forums.centos.org/

文档: http://www.centos.org/docs/

Wiki: http://wiki.centos.org/