Make space for /boot - Remove old kernels

Here is a post from an email thread that I thought might be good to share for many of you asking the same question:

Thanks to Ravi S. for the steps!

You can remove old kernels that are not being used as follows.

1. Check current kernel being used
   uname -a
   
   
2. List kernels that have been installed
   rpm -qa | grep kernel
   
   
3. List the files present in the boot directory
   ls -al /boot
   
   
4. Remove old kernel - take care not to delete the current kernel that was identified in the first step
   rpm -e <old_kernel>
   
   
5. Remove older kernels until you have about 50MB space in the boot partition