配置阿里雲YUM源:1,備份 #cd /etc/yum.repo.d/#mkdir repos#mv *.repo repos2,下載 #wget wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo緩存
3,#yum install -y epel-release.noarch 按裝epel擴展源4,以後運行yum makecache生成緩存ide