博客

1. 备份

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/

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

3. 运行生成缓存

 yum makecache 

4. 其他

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