CentOS8 CentOS Linux 8 - AppStream

阿里云CentOS8 yum源出错处理

CentOS Linux 8 - AppStream 8.8 kB/s | 2.3 kB 00:00 Errors during downloading metadata for repository appstream: - Status code: 404 for http://mirrors.cloud.aliyuncs.com/centos/8/AppStream/x86_64/os/repodata/repomd.xml (IP: 100.100.2.148) 错误：为 repo appstream 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

重新下载yum

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo

CentOS 8 结束生命周期如何切换源

公网用户：

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
yum clean all && yum makecache

阿里云ecs用户：

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
sed -i s/mirrors.cloud.aliyuncs.com/url_tmp/g /etc/yum.repos.d/CentOS-Base.repo && sed -i s/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g /etc/yum.repos.d/CentOS-Base.repo && sed -i s/url_tmp/mirrors.aliyun.com/g /etc/yum.repos.d/CentOS-Base.repo
yum clean all && yum makecache