[CentOS] How do I remove a kernel

Tue Jan 8 22:57:59 UTC 2019
Robert Moskowitz <rgm at htt-consult.com>

On 1/8/19 5:30 PM, mark wrote:
> Robert Moskowitz wrote:
>> I have 4 kernels in /boot, leaving on 20MB which is not enough for the
>> next one.
>> I had installonly_limit= set at 5, as there were some kernel problems.
>> After I got the error that there was not enough room for another kernel,
>> I set installonly_limit= to 3 and did the update with --exclude=kernel*
>> That worked to update everything else, but not remove the oldest kernel.
>> How can I remove the oldest kernel to make room for the new one?
> yum remove kernel-rest-of-kernel-name, for example
> yum remove kernel-3.10.0-862.2.3.el7.x86_64

# yum remove kernel-4.14.28-201.el7.centos.armv7hl
Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package kernel.armv7hl 0:4.14.28-201.el7.centos will be erased
--> Finished Dependency Resolution

Dependencies Resolved

  Package   Arch       Version Repository                Size
  kernel    armv7hl    4.14.28-201.el7.centos @instKern/$releasever    0.0

Transaction Summary
Remove  1 Package

Installed size: 0
Is this ok [y/N]:

Only freed up 12MB.  All the other kernel components are still there:

How do I get rid of the whole lot?