I just upgraded to wily werewolf beta. It seems that by default, my sources.list (here's the file: http://pastebin.com/FE0NyzNk) contains something wrong. I get 404 error when doing update when connecting to some of the sources. For some reason many of them seem to be located at old-releases.ubuntu.com.

I generated a new source.list file from this website, http://repogen.simplylinux.ch/, and now everything seems to work. However, if I touch settings in software & updates tool, it again adds crap to the file.

Is this a bug or do I have some old broken sources.list stored somewhere and the tool is trying to get the default entries from there or what?

EDIT: output of lsb_release -a is:

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu Wily Werewolf (development branch)
Release:    15.10
Codename:   wily

closed as off-topic by kos, user364819, Pilot6, blade19899, Eric Carvalho Oct 17 '15 at 18:44

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – kos, Community, Pilot6, blade19899, Eric Carvalho
If this question can be reworded to fit the rules in the help center, please edit the question.

  • Edit your question and add the output of lsb_release -a – A.B. Oct 17 '15 at 12:10
  • OK, here it is. – Echows Oct 17 '15 at 12:20
  • And when you start Software & Updates, without doing anything, the items are added again? – A.B. Oct 17 '15 at 12:42
  • Not if I don't do anything. Only if I change something, i.e. uncheck and then re-check one of the software sources. – Echows Oct 17 '15 at 13:11
  • Perhaps that wasn't so clear so here's a clarification. When I open the tool (with manually corrected sources.list), nothing happens. If I go to other software tab, it shows empty. If I go to ubuntu software tab then and change something, then old-releases crap gets added to the sources.list again. – Echows Oct 17 '15 at 13:14
  1. Remove the entries old-releases via

    sudo sed -i '/old-releases/d' /etc/apt-sources.list
    sudo apt-get update
  2. Don't use the tab Updates in Software & Updates until Wily is released in some days.

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