Why will the system not pick the newest installed kernel on boot? I am pretty sure that previously when I have updated the kernel, I have just installed a newer version and rebooted and voila I am running that version…
If you have, like I do, GRUB_DEFAULT=saved
and GRUB_SAVEDEFAULT=true
in /etc/default/grub
then the last one that was used will be remembered and used to boot from.
In that case you have to actively change once to a newly installed kernel, otherwise the previous one will be used.
I did have that setting, yes.
So I installed version 5.15 and booted into that and magically all needed snap software worked again.
Then I installed v 6.1.44 and booted into that and now I am back in business.
This was scary. I was just about to reinstall the whole system.
Thank you all.