Error: Failed to download metadata for repo ‘appstream‘: Cannot prepare internal mirrorlist
从别的地方查到的,做记录。https://blog.csdn.net/weixin_43252521/article/details/124409151
cd /etc/yum.repos.d/ sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-* yum makecache yum update -y