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

[Colin Law]

On Wed, 27 Nov 2024 at 07:09, Bo Berglund <bo.berglund at gmail.com> wrote:
>
> Exactly *how* do I change the default kernel in grub via an SSH terminal
> connection??
> And to which should I point it?
>
> There seems to be no easily editable file to handle this unless you mean I
> should edit the /etc/default/grub file.

At some point you, or someone else, must have edited /etc/default/grub.

Edit /etc/default/grub, change it back to 0 and run
sudo update-grub
and reboot.

Colin L.