How to get the list of the unsupported packages mentioned during the OS upgrade?

While running sudo do-release-upgrade, I got a message saying:

16 installed packages are no longer supported by Canonical. You can still get support from the community.

I know I probably shouldn't be worried, but how can I get a list of those packages before starting the upgrade?

The following is the complete output of do-release-upgrade before choosing continue: http://paste.ubuntu.com/12990830/

For better convenience, this is the most important part of it:

Calculating the changes

Do you want to start the upgrade? 


16 installed packages are no longer supported by Canonical. You can 
still get support from the community. 

61 packages are going to be removed. 204 new packages are going to be 
installed. 1617 packages are going to be upgraded. 

You have to download a total of 1,220 M. This download will take 
about 55 minutes with your connection. 

Installing the upgrade can take several hours. Once the download has 
finished, the process cannot be canceled. 

 Continue [yN]  Details [d]

Solution 1:

• The first option: Press D to see the details after starting sudo do-release-upgrade as you can see it in the output of the command in your question.

• The second option: Use /var/log/dist-upgrade/main.log

  awk -F\' '/demoted/ {gsub(/ /,"\n",$2); print $2}' /var/log/dist-upgrade/main.log
  

  to see something like this

  dvipng
  gir1.2-vte-2.90
  gnome-icon-theme-symbolic
  libart2.0-cil
  libgconf2-4
  libgconf2.0-cil
  libgnome-vfs2.0-cil
  libgnome2.24-cil
  libvte-2.90-9
  monodoc-manual
  obex-data-server
  python-commandnotfound
  rhythmbox-mozilla
  

• The third option: You can see a list of the installed community packages with this command

  aptitude search '~i ~suniverse' -F "%p"
  

  to see something like this

  adwaitaicon-theme-full
  aglfn
  aha                                                                           
  android-tools-adb                                                                  
  android-tools-fastboot
  anjuta
  anjuta-common
  apt-file
  […snip…]
  

Solution 2:

When you drop out of the do-release-upgrade script, whether you select N or y, the log will be saved in /var/log/dist-upgrade/main.log.

Getting the list of unsupported packages is a matter of running the following command:

grep 'demoted' /var/log/dist-upgrade/main.log

you would get an output similar to:

2015-10-28 18:14:01,540 DEBUG demoted: 'gir1.2-vte-2.90 gnome-icon-theme gnome-icon-theme-symbolic gstreamer0.10-plugins-base-apps libpocketsphinx1 libsphinxbase1 libunityvoice1 libvte-2.90-9 libvte-2.90-common obex-data-server python-commandnotfound rhythmbox-mozilla sphinx-voxforge-hmm-en sphinx-voxforge-lm-en ubuntu-wallpapers-vivid unity-voice-service'