I just recently updated several Oracle Linux 7.5 servers with the RHCK Kernel. As I was looking at the Kernel version I have several that are not running the latest Kernel. I thought once the Kernel gets updated it becomes the default boot Kernel? I found the article on how to change but there are quite a few so wondering if I am missing a package or if that is how Oracle Linux works. I am coming from SUSE which did boot the latest, updated, Kernel once you installed it.
Linux confluencel1t 3.10.0-862.2.3.0.1.el7.x86_64 #1 SMP Tue May 8 17:56:26 PDT 2018 x86_64 x86_64 x86_64 GNU/Linux
awk -F\' '$1=="menuentry " {print $2}' /etc/grub2.cfg
Oracle Linux Server 7.5, with Linux 3.10.0-862.11.6.el7.x86_64
Oracle Linux Server 7.5, with Linux 3.10.0-862.9.1.el7.x86_64
Oracle Linux Server 7.5, with Linux 3.10.0-862.2.3.0.1.el7.x86_64
Oracle Linux Server (0-rescue-f6393c2596d24d13a3542fed3b662547 with Linux) 7.4
I was expecting the Linux 3.10.0-862.11.6.el7.x86_64 to be the one running but it isn't. I know how to change that per this document - Oracle Linux 7: How to Modify the DEFAULT Kernel Entry in GRUB2 (Doc ID 2032376.1) but would prefer to have it automatically boot to the latest Kernel when it gets updated and after rebooting.