Oracle Linux prevent old kernels build up 29 July 2025·21 words·1 min Author Orlando Gentil Jack of all trades, master of none Avoid old kernel to remain installed after upgrade Change /etc/yum.conf installonly_limit [main] gpgcheck=1 installonly_limit=3 # <=== Desired limit clean_requirements_on_remove=True best=True skip_if_unavailable=False