4

How to upgrade from Ubuntu-12.04 LTS to the latest stable Ubuntu version, could someone please help me with the procedure, can I find a KB article somewhere. ? Thank you in advance.

Prashanth Reddy
  • 41

1 Answers1

8

The steps has to be incremental viz:

12.04 to 14.04 to 16.04 to 16.10 to 17.04

Step 1:

1a. 12.04 to 14.04:

  • Press Alt+F2 and type in "update-manager" (without the quotes) into the command box

  • Update Manager should open up and tell you: New distribution release '14.04 LTS' is available.

  • Click Upgrade and follow the on-screen instructions.

1b. Server editions:

  • Install the update-manager-core package if it is not already installed.

  • Launch the upgrade tool with the command sudo do-release-upgrade.

  • Follow the on-screen instructions.

Step 2: 14.04 to 16.04:

  1. Make sure that you are fully up-to-date.

  2. Trigger the update: sudo update-manager -d

  3. The Update Manager application will open after a few seconds. It will double-check you're up to date. It will display a prompt asking you if you want to upgrade. Just click the “Upgrade’ button to begin the process.

  4. Wait for for the update manager to finish its work.

Step 3:

1a. 16.04 to 16.10 (Desktop)

  • First always backup important data, bookmarks, etc.

    • disable or remove all third-party repositories on Other Software tab.
    • select Open Source graphic driver in Additional Drivers and REBOOT after applied changes.

  • Open Software & Updates using the Unity Dash

  • Select the Updates tab

  • Find the section titled Notify me of a new Ubuntu version

  • Change this from For long-term support versions toFor any new version`

  • Click Close

  • Run: sudo apt update && sudo apt full-upgrade

  • Open terminal and run: sudo update-manager -d, when the software updater appears select upgrade

1b. 16.04 to 16.10 (Server):

  • sudo apt install update-manager-core

  • sudo nano /etc/update-manager/release-upgrades

    • Change the line "Prompt=LTS" to "Prompt=normal" (without quotes) and save the file.
  • sudo do-release-upgrade -d

Step 4 16.10 to 17.04:

  1. Always make a backup of important data, bookmarks, and other user documents.

  2. Remove or disable third-party repositories:

    • Launch Software & Updates utility, navigate to Other Software tab, and remove/disable all third-party repositories.

  3. Restore to open-source drivers:

    • Also in Software & Updates utility, Additional Drivers tab, switch to the open-source drivers if proprietary drivers are in use. (Need restore after applied changes)
    • And it's better to choose download from 'Main Server' in Software & Updates utility.

  4. Make your system up-to-date by running command in terminal:

    sudo apt update && sudo apt full-upgrade

  5. After all, launch Update Manager via the command below and it will prompt that Ubuntu 17.04 is available after checking for updates:

    sudo update-manager -d

Source(s):

http://ubuntuhandbook.org/index.php/2017/04/upgrade-to-ubuntu-17-04-from-ubuntu-16-10/

http://www.omgubuntu.co.uk/2016/10/how-to-upgrade-to-ubuntu-16-10

http://ubuntuhandbook.org/index.php/2016/10/upgrade-ubuntu-16-10-from-ubuntu-16-04/

https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes#Upgrading_from_Ubuntu_12.04_LTS_or_Ubuntu_13.10

https://help.ubuntu.com/community/UpgradeNotes

George Udosen
  • 37,534