Sfdwhf

Try this:

sudo apt-get update        # Fetches the list of available updates

sudo apt-get upgrade       # Strictly upgrades the current packages

sudo apt-get dist-upgrade  # Installs updates (new ones)

Documentation about each apt-get option can be found in the the man-pages for apt-get. These are also available by running man apt-get on your computer.

Execute all the commands by typing sudo once:

sudo -- sh -c 'apt-get update; apt-get upgrade -y; apt-get dist-upgrade -y; apt-get autoremove -y; apt-get autoclean -y'

or

sudo -s -- <<EOF

apt-get update

apt-get upgrade -y

apt-get dist-upgrade -y

apt-get autoremove -y

apt-get autoclean -y

EOF

or even shorter in a for loop (Thanks @dessert)

sudo bash -c 'for i in update {,dist-}upgrade auto{remove,clean}; do apt-get $i -y; done'

This is normal behavior.

The message you see on login has been appended to the server status 'Message-Of-The-Day', which is only updated each calendar day (or on server boot / startup). Have a look at the contents, using

cat /etc/motd

Still seeing the same updates available, after running

sudo apt-get update && sudo apt-get upgrade

is to be expected. If you then re-run this command you will only be prompted for any further updates if even further (newer) updates have been released.

Once your log into your server, run the command below.

sudo apt-get upgrade

It should do the trick. Maybe you just need to restart your server.

In my case, I had an incorrect or not accessible URL in /etc/apt/sources.list.
After removing this URL, I was able to update all packages successfully.

Commands:

sudo vi /etc/apt/sources.list

sudo apt-get update && sudo apt-get upgrade

My (really late, I like necromancer badges :-) ) solution:

1. 
   

   Install wajig (once):

   
   
   

   sudo apt-get install wajig 
   
   

   
   


2. 
   

   When you want to update/upgrade fully your system

   
   
   

   wajig dailyupgrade
   
   

   
   
   

   (it will ask for password if needed, and do all the update, upgrade, dist-upgrade, and autoremove steps for you).

   
   

You may also need to do this -

sudo touch /etc/motd.tail

From - Ubuntu tells me I have packages to upgrade when I don't

It worked for me on 14.04

this script is handy to automate updates including removing unneeded packages and performing a reboot only if the OS wants one

remote_user=usernamehere

remote_host=example.com



ssh -A -n -o StrictHostKeyChecking=no ${remote_user}@${remote_host} && 

sudo apt-get update && 

sudo apt-get -f install -y && 

sudo apt-get -o Dpkg::Options::="--force-confnew" -yy dist-upgrade -y && 

sudo apt-get autoremove -y && 

[ -f /var/run/reboot-required ] && 

echo "sudo reboot now" && 

sudo reboot now 

to run on your local box just leave off that first line doing the ssh

here is an alias I save in ~/.bashrc

alias doit='echo; kill $( ps -eafww|grep update-manager|grep -v grep | grep update-manager | tr -s " " |cut -d" "  -f2 ) > /dev/null 2>&1;  echo "sudo apt-get update && sudo apt-get dist-upgrade &&  [ -f /var/run/reboot-required ] && echo && echo reboot required && echo";echo;sudo apt-get update && sudo apt-get dist-upgrade &&  [ -f /var/run/reboot-required ] && echo && echo reboot required && echo '

then on terminal I just issue doit

If you run apt-get update again after apt-get upgrade has been concluded, those messages at ssh login should go away.

Ran updates on server 18.04 LTS from the command line last night. (actually used aptitude). The system restarted automatically. It's a production server. How do I prevent that behavior. I stopped using Microsoft products because of that behavior. A server should restart when I want it to restart, not when canonical or redhat (systemd) thinks it should.

How can I prevent that behavior in the future? Really, really annoyed.