如何在repos不再可用后从CentOS 8切换到CentOS流

Question

在回购urls消失后，旧答案不再工作了：

$ sudo dnf install centos-release-stream
Failed to set locale, defaulting to C.UTF-8
CentOS-8 - Base                                                                                            38 kB/s | 282  B     00:00    
Errors during downloading metadata for repository 'BaseOS':
  - Status code: 404 for http://asi-fs-n.contabo.net/centos/8/BaseOS/x86_64/os/repodata/repomd.xml (IP: 79.143.183.106)
Error: Failed to download metadata for repo 'BaseOS': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

我现在怎么换呢？

编辑：

来自官方页面的解释，似乎也不起作用：

dnf --disablerepo '*' --enablerepo extras swap centos-linux-repos centos-stream-repos
dnf distro-sync

CentOS-8 - Base                                                                                            39 kB/s | 282  B     00:00    
Errors during downloading metadata for repository 'BaseOS':
  - Status code: 404 for http://asi-fs-n.contabo.net/centos/8/BaseOS/x86_64/os/repodata/repomd.xml (IP: 79.143.183.106)
Error: Failed to download metadata for repo 'BaseOS': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

Answer 1

2022年5月:以下是我从CentOS 8到CentOS流8的成功之处：

# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
# sed -i 's/mirrorlist/#mirrorlist/g'  /etc/yum.repos.d/CentOS-*
# dnf install centos-release-stream -y --allowerasing
# dnf swap centos-{linux,stream}-repos
# dnf distro-sync --best --allowerasing
# reboot