james@james-Desktop:~$ sudo apt install linux-generic-lts-xenial linux-image-generic-lts-xenial
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-generic-lts-xenial is already the newest version.
linux-image-generic-lts-xenial is already the newest version.
linux-image-generic-lts-xenial set to manually installed.
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 linux-image-extra-4.4.0-36-generic : Depends: linux-image-4.4.0-36-generic but it is not going to be installed
 linux-image-generic-lts-xenial : Depends: linux-image-4.4.0-36-generic but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
james@james-Desktop:~$