root@xxxx:~# apt-get autoremove
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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 installed
 linux-image-extra-4.4.0-45-generic : Depends: linux-image-4.4.0-45-generic but it is not installed
 linux-image-extra-4.4.0-47-generic : Depends: linux-image-4.4.0-47-generic but it is not installed
 linux-image-generic : Depends: linux-image-4.4.0-47-generic but it is not installed
E: Unmet dependencies. Try using -f.
root@xxxx:~#