Revision as of 15:10, 18 April 2020

References

• [https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes Ubuntu 18.04 Release Notes}

Upgrade From Ubuntu 16.04

Instructions from 18.04 Release Notes referenced above

To upgrade on a desktop system:

Ubuntu Version Notify - Long Term Only

• Open the "Software & Updates" Setting in System Settings. "System Settings" is the gear icon. "Software & Updates" are in the "System" section.
• Select the 3rd Tab called "Updates".
• Set the "Notify me of a new Ubuntu version" drop down menu to "For long-term support versions" if you are using 16.04 LTS; set it to "For any new version" if you are using 17.10. This was already set this way

Update Manager - part 1 upgrade 16.04

• Press Alt+F2 and type update-manager -c into the command box. Just open a terminal window.

 $ update-manager -c

These are the issues that had to be fixed before this would work

• Error: "Failed to download repository information"
• Failed To download Repository Information Ubuntu 13-04/

This is an issue with "Other Software" (third) party items in the repository list. I solved this problem by disabling all third party repositories, in particular: ROS Kinetic, Realsense and PPA. These package must have been incompatible. Now it let me upgrade the current 16.04 system.

Follow this desktop link: Settings (gear icon) -> "Other Software" Tab. Uncheck all of them, authenticate, update and do anything else it requests.

Upgrade Manager - part 2 upgrade to 18.04

 $ update-manager -c

• This time the Update Manager should open up and tell me that "the software on this computer is up to date and Ubuntu 18.04 LTS is now available. I selected the button that says upgrade to 18.04. I got info measures about some third party software being disabled.
• Error: "Could Not Calculate the Upgrade"
• Could Not Calculate the Upgrade

 sudo apt-get remove ros-*

Follow 18.04 Install Instructions

• Click Upgrade and follow the on-screen instructions

 $ update-manager -c
       ...
       57 pacages not support
       88 removed
       1902 upgraded
       ...