Ubuntu 24.04.1 server - grub did not update after update-upgrade....

[Bo Berglund]

I return with yet a new problem concerning my ubuntu server and grub boot....

I have run a do-release-upgrade twice on this machine to get from 20.04.6 to
24.04.1 LTS. It seemed to work with sime minor issues concerning a couple of
applications.

Now after Xmas I am back and I ran:

$ sudo apt update && sudo apt full-upgrade -y

This shows a message inside all that is written about the system needing to be
rebooted to get from kernel 5.15.0-126 to 6.8.0-51 so I did the reboot and
nothing changed:


$ uname -r
5.15.0-126-generic

and

$ dpkg --list 'linux-image*' | grep ^ii
ii  linux-image-5.15.0-126-generic 5.15.0-126.136 amd64 Signed kernel image
generic
ii  linux-image-6.8.0-51-generic 6.8.0-51.52 amd64 Signed kernel image generic
ii  linux-image-generic  6.8.0-51.52  amd64 Generic Linux kernel image
ii  linux-image-generic-hwe-20.04  5.15.0.126.136~20.04.1 amd64 Generic Linux
kernel image

I then ran:

sudo update-grub
sudo reboot

And now I stopped to look at the grub menu
(the server is on partition nvme0n1p6)

Main menu:
------------------------------------------------------------------------
 Ubuntu
 Advanced options for Ubuntu
 Windows Boot Manager (on /dev/nvme0n1p1)
*Ubuntu 20.04.6 LTS (20.04)  (on /dev/nvme0n1p6)
 Advanced options for Ubuntu 20.04.6 LTS (20.04) (on /dev/nvme0n1p6)
 UEFI Firmware Settings
 GParted Live
 Bootable ISO Image: gparted-live-1.3.1-1-amd64
-------------------------------------------------------------------------

Advanced options:
-------------------------------------------------------------------------
Advanced options:
*Ubuntu (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.15.0-126-generic (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.15.0-126-generic (recovery mode) (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.4.0-200-generic (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.4.0-200-generic (recovery mode) (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.4.0-89-generic (on /dev/nvme0n1p6)
 Ubuntu. with Linux 5.4.0-89-generic (recovery mode) (on /dev/nvme0n1p6)
-------------------------------------------------------------------------

As you can see there is no mention at all of the new kernel 6.8.0-51 on the grub
menu....
And the Ubuntu version is wrong on the menu.

What can I do in order to fix this issue?
 

-- 
Bo Berglund
Developer in Sweden