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I tried to add a ppa to control the heat issues of Ubuntu 20.04 but it threw an error. So I then tried to remove it, which again throws the same error.

$ sudo ppa-purge ppa:webupd8team/unstable
Updating packages lists
E: The repository 'http://ppa.launchpad.net/webupd8team/unstable/ubuntu focal Release' does not have a Release file.
Warning:  apt-get update failed for some reason

How do I get rid of it?

E.Eisbrenner
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  • I'd normally fix with a text editor (or terminal), but you can use software sources and many other GUI tools too. – guiverc May 07 '21 at 09:52
  • @guiverc hm not sure, it suggests using ppa-purge with does not work, and the comment says that the solution was to accept the broken ppa in some settings menu? and its possible to do that manually in a file? where is the ppa file located? and what are the risks if I remove some lines not understanding what I'm doing? – E.Eisbrenner May 07 '21 at 10:03
  • https://askubuntu.com/a/1163224/1238913 ppa-purge did not work but sudo add-apt-repository --remove did – E.Eisbrenner May 07 '21 at 10:14
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    If you haven't actually installed something from there due to errors then there's no point in using ppa-purge. Removing the PPA is enough. – ChanganAuto May 07 '21 at 10:19
  • @ChanganAuto ah so ppa-purge removes things connected to the ppa and not the ppa entry to the ppa-list/registry? – E.Eisbrenner May 07 '21 at 10:32
  • The main sources are found in /etc/apt/sources.list however generally ones users have added are found in /etc/apt/sources.list.d/ (ie. I mentioned terminal/editor, you can edit/change/remove anything in that directory as they were all added post-install and are not Ubuntu repositories, but 3rd party; ie. not critical for your base Ubuntu system) – guiverc May 07 '21 at 10:33
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    It removes both. ppa-purge is useful to get things back to what they were before adding a given PPA and installing from it and other changes. If the added PPA didn't work then nothing was changed so removing it is enough. – ChanganAuto May 07 '21 at 10:35
  • Note the use of the sources.list.d/ or "/" at the end, to signify it's a directory of entries... by default that is an empty directory on a clean Ubuntu system (filled by details added by users) – guiverc May 07 '21 at 10:35
  • Thank you very much you two! – E.Eisbrenner May 07 '21 at 11:35

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