CentOS 7.9.2009
# cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core)
UOS Server 20
# cat /etc/product-info UnionTech OS Server 20 1040d 20210719 x86_64
麒麟V10 SP2
# cat /etc/.productinfo Kylin Linux Advanced Server release V10 (SP2) /(Sword)-x86_64-Build09/20210524