After updating, the latest kernels get downloaded and installed. However they do not appear in the grub list of kernels. Some older kernels that have been deleted appear instead.
I've tried a lot of the suggestions online with no luck.
sudo update-grub2
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.2.0-24-generic
Found initrd image: /boot/initrd.img-6.2.0-24-generic
Found linux image: /boot/vmlinuz-6.2.0-20-generic
Found initrd image: /boot/initrd.img-6.2.0-20-generic
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Ubuntu 23.04 (23.04) on /dev/nvme0n1p3
Adding boot menu entry for UEFI Firmware Settings ...
ls -l /boot/
total 197696
-rw-r--r-- 1 root root 276283 Apr 6 08:33 config-6.2.0-20-generic
-rw-r--r-- 1 root root 275984 Jun 16 11:07 config-6.2.0-24-generic
drwxr-xr-x 3 root root 4096 Jan 1 1970 efi
drwxr-xr-x 5 root root 4096 Jun 29 17:45 grub
lrwxrwxrwx 1 root root 27 Jun 28 16:31 initrd.img -> initrd.img-6.2.0-24-generic
-rw-r--r-- 1 root root 77057438 Jun 17 13:05 initrd.img-6.2.0-20-generic
-rw-r--r-- 1 root root 79567659 Jun 28 16:31 initrd.img-6.2.0-24-generic
lrwxrwxrwx 1 root root 27 Jun 29 15:49 initrd.img.old -> initrd.img-6.2.0-20-generic
-rw-r--r-- 1 root root 138712 Feb 11 12:16 memtest86+ia32.bin
-rw-r--r-- 1 root root 139776 Feb 11 12:16 memtest86+ia32.efi
-rw-r--r-- 1 root root 144312 Feb 11 12:16 memtest86+x64.bin
-rw-r--r-- 1 root root 145408 Feb 11 12:16 memtest86+x64.efi
-rw------- 1 root root 8146863 Apr 6 08:33 System.map-6.2.0-20-generic
-rw------- 1 root root 8152253 Jun 16 11:07 System.map-6.2.0-24-generic
lrwxrwxrwx 1 root root 24 Jun 28 16:31 vmlinuz -> vmlinuz-6.2.0-24-generic
-rw------- 1 root root 14524456 Apr 6 08:35 vmlinuz-6.2.0-20-generic
-rw------- 1 root root 13854856 Jun 16 12:43 vmlinuz-6.2.0-24-generic
lrwxrwxrwx 1 root root 24 Jun 29 15:49 vmlinuz.old -> vmlinuz-6.2.0-20-generic
The list from grub is given below.
[enter image description here][1]
[1]: https://i.stack.imgur.com/aOj38.jpg
If you check from the list in /boot, the "oracle" and "lowlatency" kernel have been removed. Yet they still appear in the grub list. The "6.2.0-24-generic" kernel is however missing in grub even though it's in /boot and is installed.
