~$ sudo apt-get install -f
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libjpeg62:i386
Use 'apt-get autoremove' to remove it.
0 to upgrade, 0 to newly install, 0 to remove and 20 not to upgrade.
7 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up linux-image-3.16.0-55-generic (3.16.0-55.74~14.04.1) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
The link /initrd.img is a dangling linkto /boot/initrd.img-3.16.0-55-generic
vmlinuz(/boot/vmlinuz-3.16.0-55-generic
) points to /boot/vmlinuz-3.16.0-55-generic
 (/boot/vmlinuz-3.16.0-55-generic) -- doing nothing at /var/lib/dpkg/info/linux-image-3.16.0-55-generic.postinst line 491.
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.16.0-55-generic /boot/vmlinuz-3.16.0-55-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.16.0-55-generic /boot/vmlinuz-3.16.0-55-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.16.0-55-generic /boot/vmlinuz-3.16.0-55-generic
update-initramfs: Generating /boot/initrd.img-3.16.0-55-generic