How do i update to Ubuntu 16.04

Question

I'm using Ubuntu 15.04. I want to update to 16.04. But the Software updater does not show the required update. How do i update?

Answer 1

First make sure that your software is up to date. (run update manager) Than open the terminal Ctrl+Alt+T and run this command

sudo update-manager -d

Hit Enter and enter your password when asked.

Of course, be sure to make backup of any important data. It should not alter them, but you never know.

Answer 2

In order to upgrade your distribution you may give this a try:

sudo apt-get dist-upgrade

As the manual page itself explains:

   dist-upgrade
       dist-upgrade in addition to performing the function of upgrade,
       also intelligently handles changing dependencies with new versions
       of packages; apt-get has a "smart" conflict resolution system, and
       it will attempt to upgrade the most important packages at the
       expense of less important ones if necessary.

It'll upgrade the distro to its latest version.

Answer 3

First you need to upgrade to 15.10, then you can upgrade to 16.04.

From a terminal window:

1. sudo apt-get update
2. sudo apt-get upgrade

Reboot if asked.

3. sudo do-release-upgrade

Answer questions and reboot as required. Now you should be at 15.10

4. sudo do-release-upgrade

Answer questions and reboot as required. Now you should be at 16.04