Remove 4.* series kernel from 18.04

[Jeffrey Walton]

On Wed, Apr 26, 2023 at 6:38 PM jon danniken <jondanniken at gmail.com> wrote:
>
> Hello list, some time ago I installed the Hardware Enablement (hwe)
> kernel on my 18.04 box.  For some reason I am still getting updates
> for the 4.* series kernel, and I would like to prevent this.
>
> I'm pretty sure this entails removing linux-generic, but I was hoping
> for some confirmation before I try this.

I don't have a Ubuntu 18.04 machine to test with, but...

You should install linux-image-generic-hwe and
linux-headers-generic-hwe, and remove linux-image-generic and
linux-headers-generic.

If you manually install linux-image-generic-hwe and
linux-headers-generic-hwe, then you should 'apt mark auto
linux-image-generic-hwe and linux-headers-generic-hwe' to ensure they
get the normal treatment.

apt-cache search should let you see what's available (and what to
remove and what to keep):

# From Ubuntu 22.04
$ apt-cache search linux-image | grep generic
linux-image-generic - Generic Linux kernel image
linux-image-generic-hwe-20.04 - Generic Linux kernel image (dummy
transitional package)
linux-image-generic-hwe-20.04-edge - Generic Linux kernel image (dummy
transitional package)
linux-image-generic-hwe-22.04 - Generic Linux kernel image
linux-image-generic-hwe-22.04-edge - Generic Linux kernel image
...

$ apt-cache search linux-headers | grep generic
linux-headers-generic - Generic Linux kernel headers
linux-headers-generic-hwe-20.04 - Generic Linux kernel headers (dummy
transitional package)
linux-headers-generic-hwe-20.04-edge - Generic Linux kernel headers
(dummy transitional package)
linux-headers-generic-hwe-22.04 - Generic Linux kernel headers
linux-headers-generic-hwe-22.04-edge - Generic Linux kernel headers
...

Jeff