- centos7安装教程
- 备份原来的yum源
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
- 设置aliyun的yum源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
- 添加EPEL源
wget -P /etc/yum.repos.d/ http://mirrors.aliyun.com/repo/epel-7.repo
- 清理缓存,生成新缓存,执行yum更新
# 清除缓存
yum clean all
# 生成新的缓存
yum makecache
- 安装EPEL(Extra Packages for Enterprise Linux )源
yum install -y epel-release
- 再次运行yum clean all 清除缓存,运行 yum makecache 生成新的缓存
- 查看启用的yum源和所有的yum源
yum repolist enabled
yum repolist all
- 更新yum
yum -y update
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