centos8换国内源

运行yum报错

CentOS Linux 8 - AppStream 80 B/s | 38 B 00:00 错误：为仓库 'appstream' 下载元数据失败 : Cannot prepare internal mirrorlist: No URLs in mirrorlist

mv /etc/yum.repos.d/ /etc/yum.repos.d_bak

mkdir /etc/yum.repos.d

curl -O https://vault.centos.org/centos/8/AppStream/x86_64/os/Packages/wget-1.19.5-10.el8.x86_64.rpm

curl -O https://vault.centos.org/centos/8/BaseOS/x86_64/os/Packages/libmetalink-0.1.3-7.el8.x86_64.rpm

rpm -ivh libmetalink-0.1.3-7.el8.x86_64.rpm

rpm -ivh wget-1.19.5-10.el8.x86_64.rpm

cd /etc/yum.repos.d

wget http://mirrors.aliyun.com/repo/Centos-8.repo

yum clean all

yum makecache

OK