CentOS 7更换阿里云的源CentOS 7更换阿里云的源操作步骤: [root@hadoop001 ~]# cd /etc/yum.repos.d/ [root@hadoop001 yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak [root@hadoop001 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo [root@hadoop001 yum.repos.d]# sed -i -e '/mirrors.