Delete / Remove Old Kernels on Fedora, CentOS, Red Hat (RHEL)

Some times, More than one kernel is a problem for operation. So It is better to remove old kernel if necessary to save your space.

Step:1: Install the package yum install yum-utils

step2: Check the kernels installled rpm -q kernel

Step 3: Clean up old kernels: package-cleanup --oldkernels --count=1 You are done !