CentOS7换源

1. 备份源

[[email protected] ~]# cd /etc/yum.repos.d/
[[email protected] yum.repos.d]# mv ./CentOS-Base.repo ./CentOS-Base.repo.bak

2. 下载网易163源

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

3. 清除旧包

yum clean all

4. 设置成默认源并生成缓存

[[email protected] yum.repos.d]# mv CentOS7-Base-163.repo CentOS-Base.repo
[[email protected] yum.repos.d]# yum makecache