简介
CentOS Stream是一个Linux®开发平台，通过它，开源社区成员可以与红帽开发人员一起，共同为红帽® 企业 Linux贡献力量。CentOS Stream并不是一个稳定的生产版本，它是一个RHEL的上游或中游开发版本。
下载地址：
- 火山引擎访问地址：https://mirrors.ivolces.com/centos-stream/
- 公网访问地址：https://mirrors.volces.com/centos-stream/
配置方法
CentOS 9 Stream
1. 备份
2. 修改配置文件
/etc/yum.repos.d/CentOS-Stream-BaseOS.repo 文件：
# CentOS-Stream-BaseOS.repo
#
# The mirrorlist system uses the connecting IP address of the client and the
# update status of each mirror to pick current mirrors that are geographically
# close to the client. You should use this for CentOS updates unless you are
# manually picking other mirrors.
#
# If the mirrorlist does not work for you, you can try the commented out
# baseurl line instead.
[baseos]
name=CentOS Stream $releasever - BaseOS
#mirrorlist=http://mirrorlist.centos.org/?release=$stream&arch=$basearch&repo=BaseOS&infra=$infra
baseurl=https://mirrors.ivolces.com/centos-stream/$stream/BaseOS/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
/etc/yum.repos.d/CentOS-Stream-AppStream.repo 文件：
# CentOS-Stream-AppStream.repo
#
# The mirrorlist system uses the connecting IP address of the client and the
# update status of each mirror to pick current mirrors that are geographically
# close to the client. You should use this for CentOS updates unless you are
# manually picking other mirrors.
#
# If the mirrorlist does not work for you, you can try the commented out
# baseurl line instead.
[appstream]
name=CentOS Stream $releasever - AppStream
#mirrorlist=http://mirrorlist.centos.org/?release=$stream&arch=$basearch&repo=AppStream&infra=$infra
baseurl=https://mirrors.ivolces.com/centos-stream/$stream/AppStream/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial