29 packages can be updated - How?

Question

I see the following message when I login:

29 packages can be updated.

6 updates are security updates.

How can I perform the updates?

I tried apt-get upgrade and some stuff was installed but the message still remains.

Answer 1

Try these commands (although the third one may not be necessary for you):

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

A reboot may or may not be necessary (sudo shutdown -r 0)

Answer 2

When you ran apt-get upgrade, where there any "not upgraded"? Eg:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Looking at 0 not upgraded. If there were ones that were not upgraded, run apt-get dist-upgrade