1.备份原来的yum源 mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 2.设置yum源为阿里云 wget http://mirrors.aliyun.com/repo/Centos
1.备份原来的yum源 yum install wget -y mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 2.设置yum源为阿里云 wget -O /etc/yum.repos.
yum 出现大量404,以及yum无法访问的情况,尝试运行以下两行: yum clean all yum list