Making yum Not Update Kernel

We may not want to update kernel on a stable server while updating the application in the system. If we use “yum update”, we may install the new kernel. In this post, how to make yum not update kernel when updating system will be introduced.

The method is simple. Add this line to /etc/yum.conf

exclude=kernel*

“exclude” in /etc/yum.conf lists of packages to exclude from updates or installs. This  should  be a space separated list. Shell globs using wildcards (eg. * and ?) are allowed.