I recently got a new server. Freshly installed 16.04. I noticed the kernel running is 2.6.32. So I wanted to update it.
sudo apt-get install --reinstall linux-generic
Now I have this version: 4.4.0-21.37
I also had to install grub to use update-grub.
dpkg --list shows me only linux-headers/images of 4.4.0-21.37.
Also update-grub found kernels of that version.
But when I use uname it still tells me this
Linux london 2.6.32-042stab113.21 #1 SMP Wed Mar 23 11:05:25 MSK 2016 x86_64 x86
Yes I did reboot a couple times. Maybe you can help me.