Guidance on Cleaning Boot Partition

Hello!

My /boot partition is at 83% full and I've googled all the boot threads but I'm not 100% sure on how to tell which kernel packages are safe to remove. Hoping someone could help.

From reading other help threads, this is what I've understood so far, please correct me if I'm wrong

First I need to do the below command to find the kernel I'm using

#uname -a

Output

Code:

Linux s1.****.com 2.6.32-358.11.1.el6.x86_64 #1 SMP Wed Jun 12 03:34:52 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

then to list installed kernel packages

# rpm -q kernel kernel-smp

Output:

Code:

kernel-2.6.32-358.el6.x86_64
kernel-2.6.32-358.6.2.el6.x86_64
kernel-2.6.32-358.11.1.el6.x86_64
package kernel-smp is not installed

So from the above info does it mean it is safe to remove the following kernel packages?

Code:

kernel-2.6.32-358.el6.x86_64
kernel-2.6.32-358.6.2.el6.x86_64

Command to remove packages is

Code:

yum remove kernel-x.xxx.exx.xx

Is this correct?

I read from another thread that I should have at least two kernel packages installed so I should only remove one from above?

What is "package kernel-smp is not installed"?

Thanks!