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Dims
Asked: 2020-08-10 06:50:55 +0800 CST

How to "remove software from Launchpad PPA" in order to do-release-upgrade?

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I am trying to upgrade from 16 LTS with a command

sudo do-release-upgrade

but it failes with

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

This was likely caused by:
* Unofficial software packages not provided by Ubuntu
Please use the tool 'ppa-purge' from the ppa-purge
package to remove software from a Launchpad PPA and
try the upgrade again.

If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.If
you want to investigate this yourself the log files in
'/var/log/dist-upgrade' will contain details about the upgrade.
Specifically, look at 'main.log' and 'apt.log'.

What she wants and how to satisfy her? I tried to remove all packages from launchpad.net but it didn't help.

launchpad ppa apt 16.04 do-release-upgrade

1 Answers

  1. Best Answer

    Referring to your comment about ppa:dhor/myway

    The following command line can be used to remove the PPA (the option -r causes removal),

    sudo add-apt-repository -r ppa:dhor/myway
sudo apt-get update

    Your comment about .../webupd8team/java/ubuntu xenial main

    deb http://ppa.launchpad.net/webupd8team/java/ubuntu xenial main

    corresponds to (can be removed with)

    sudo add-apt-repository -r ppa:webupd8team/java
sudo apt-get update

    Please notice that this PPA is discontinued.

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