# 准备工作
检查 wget 是否安装
wget -V |
安装
yum install wget -y |
# 备份原有 yum 源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup |
# 选择可用的 yum 源
阿里云
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo |
163
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo |
# 生成缓存
yum clean all # 清除 yum 缓存 | |
yum makecache # 重建缓存 | |
yum -y update # 升级所有包 |
