yum安装报错“Could not resolve host: mirrorlist.centos.org; 未知的错误“

问题:
yum install -y nginx
已加载插件:fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - “Could not resolve host: mirrorlist.centos.org; 未知的错误”

解决:

  • 1、对系统yum源备份
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
  • 2、更换yum源(此处更换为阿里源)
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
  • 3、清理缓存,生成新缓存
yum clean all
yum makecache
  • 4、继续安装,若提示“没有可用软件包”,则安装EPEL源
yum install epel-release
  • 5、安装成功后继续安装

以上,如有错误,请指正!

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