1vi /etc/yum.repos.d/CentOS-Base.repo 1234567891011121314151617181920212223242526272829303132333435363738394041424344[base] name=CentOS-8.5.2111 – Base – mirrors.aliyun.com baseurl=http://mirrors.aliyun.com/centos-vault/8.5.2111/BaseOS/$basearch/os/ http://mirrors.aliyuncs.com/centos-vault/8.5.2111/BaseOS/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/BaseOS/$basearch/os/ gpgcheck=0 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official #additional packages that may be useful [extras] name=CentOS-8.5.2111 – Extras – mirrors.aliyun.com baseurl=http://mirrors.aliyun.com/centos-vault/8.5.2111/extras/$basearch/os/ http://mirrors.aliyuncs.com/centos-vault/8.5.2111/extras/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/extras/$basearch/os/ gpgcheck=0 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official #additional packages that extend functionality of existing […]