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Metaporic avatar Ubuntu

I can't find my sources and I'm unable to update (Ubuntu 20.04)

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Metaporic

I was just trying to install ADB and it returned the following error message:

W: Unable to read /etc/apt/apt.conf.d/ - DirectoryExists (2: No such file or directory)
W: Unable to read /etc/apt/preferences.d/ - DirectoryExists (2: No such file or directory)

I then went into my sources GUI to enable the universe source list and noticed that all of my sources where unticked and nothing was listed. I tried to recheck them and reload my cache but it returned a error message everytime.

enter image description here

I then tried running sudo apt update and it returned the same error message as the ADB installation. So I checked my actual sources folder and inside the folder there were two files, sources.list and sources.save. The .list simply redirects me to the sources GUI and the .save has a single source in it which is 'deb http://archive.ubuntu.com/ubuntu focal multiverse main'. Empty sources list

I am a bit lost as to what can be done here. Did I accidentally wipe my sources list? Can it be restored? I do not recall playing with the sources/repositories at any point in the past week but I did run the command sudo du -sh /var/cache/apt when trying to free up some space the other day and I also tried to backup my Ubuntu via Penguin Eggs which involved a bunch of console commands I did not admittedly fully understand.

If it can't be restored does this mean any applications I installed via it will no longer update?

Thank you for your help.

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Nmath avatar
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Nmath
Does this answer your question? [How do I restore the default repositories?](https://askubuntu.com/questions/124017/how-do-i-restore-the-default-repositories). Sources are at `/etc/apt/sources.list` and not `/etc/apt/sources.list.save`. The fact that the former is missing and the latter exists tells me that you probably ran commands you found somewhere without understanding what they did. Not a great idea. Please review the question for restoring the default repos.
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