https://fedorahosted.org/spacewalk/wiki/HowToInstall
When using Red Hat Enterprise Linux 6 or 7, make sure you are subscribed to the appropriate Red Hat
我最近将一个RedHat 8系统迁移到Oracle Linux ULN,我发现"dnf update“和"dnf check-update”之间存在差异(参见下面的输出)。#dnf updateThis system is receiving updates from Unbreakable Linux Netwo