Centos7 更换阿里源和腾讯源

备份

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

复制代码

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

1. centos-6
   
2. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
   
3. centos-7
   
4. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
   
5. 腾讯云
   
6. wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo

复制代码

生成缓存并更新系统      

1. yum clean all
   
2. yum makecache
   
3. yum list updates
   
4. yum -y update（更新内核）
   
5. 或
   
6. yum -y upgrade（不更新内核）

复制代码