Sisters Upgrade to Ubuntu 18.04 202004

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References

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

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


failed with

    • rebooted
    • settings - the gear
    • Wireless - turn it off
    • changed upload site manually
    • froom mirrors.accretive-neworks.net/ubuntu
    • mirror.uoregon.edu/ubuntu
  • Update Manager should open up and tell you that Ubuntu 18.04 LTS is now available.
  • If not you can run /usr/lib/ubuntu-release-upgrader/check-new-release-gtk
  • Click Upgrade and follow the on-screen instructions.


This did it. now I ran update-manager -c

gave me the messge "The sortware on this computer is up todate. However . Ubuntuo 18.04 LTS is now afailabe (your have 16.04)

pressed "Upgrade" button some third part entries in you sorrces.list disable - may enable them latter

could not calculate upgreade

doesn like ros kenetic


https://askubuntu.com/questions/360293/could-not-calculate-the-upgrade-what-happened


https://answers.ros.org/question/57213/how-i-completely-remove-all-ros-from-my-system/

57 pacages not support 88 removed

1902 upgraded


https://howtoinstall.co/en/ubuntu/xenial/ros-desktop?action=remove

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