Ubuntu 20.04.6 LTS apt problems - how to upgrade f/w?

[Colin Law]

On Tue, 26 Nov 2024 at 20:31, Bo Berglund <bo.berglund at gmail.com> wrote:
>
> It seems like it keeps the old kernel and boots back to it after the
> installations have been done...
>
> How can I make the system boot to the new kernel?
> Is there some tool to modify the grub menu to boot into the new kernel?
>

What is in /etc/default/grub?

Colin L