Linux下配置软件安装源&更新

CentOS

首先备份原来的

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

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

CentOS 7-阿里云的yum源————实际测试这个速度比163的快一点，大概十几毫秒。

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

CentOS 7-163的yum源

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
or
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo

运行以下命令生成缓存

yum makecache

更新系统和软件

yum -y update && yum -y grade 

参考链接

http://mirrors.aliyun.com/
http://mirrors.163.com/