The OP should read the section of the Gentoo manual on kernel install to learn what files are installed where. Yea, but just rm the kernels and initramfs's from /boot and you're golden. FWIW, I usually only upgrade my kernel when it's a major revision.

On Thu, Jun 30, 2022 at 12:39 PM Wols Lists <antlists@youngman.org.uk> wrote:

On 30/06/2022 19:23, Michael wrote:
> On Thursday, 30 June 2022 19:15:33 BST Guillermo wrote:
>> Hello,
>>
>> I still have the same problem, but the command worked fine.
> The command "emerge -a --depclean" will only remove uninstall the kernel
> packages, but will not remove files from/usr/src/, or old kernel images and
> files from/boot/.

As far as I'm aware, depclean only installs files it installed, so it
leaves quite a lot of garbage lying around from kernels, including the
/usr/src/kernel-xx-xx-xx directory and various files involved in making
your kernel, that you've modified.

Cheers,
Wol