How to restore to default source list?

Question

Before this problem occured, i got duplicate source.list entry error when do apt-get update command and decide to solve it.

I don't know what to do now..

UPDATE

Output of sudo apt-get update:

$ sudo apt-get update 
Ign http://ppa.launchpad.net saucy InRelease
Ign http://ppa.launchpad.net saucy InRelease
Ign http://ppa.launchpad.net saucy InRelease
Get:1 http://ppa.launchpad.net saucy Release.gpg [316 B]
Hit http://ppa.launchpad.net saucy Release.gpg
Hit http://ppa.launchpad.net saucy Release.gpg
Get:2 http://ppa.launchpad.net saucy Release [12,9 kB]
Hit http://ppa.launchpad.net saucy Release         
Hit http://ppa.launchpad.net saucy Release       
Get:3 http://ppa.launchpad.net saucy/main Sources [4.873 B]
Get:4 http://ppa.launchpad.net saucy/main i386 Packages [3.311 B]
Get:5 http://ppa.launchpad.net saucy/main Translation-en [1.492 B]
Hit http://ppa.launchpad.net saucy/main i386 Packages  
Hit http://ppa.launchpad.net saucy/main Sources
Hit http://ppa.launchpad.net saucy/main i386 Packages
Ign http://ppa.launchpad.net saucy/main Translation-en_US                                                
Ign http://ppa.launchpad.net saucy/main Translation-en                                                   
Ign http://ppa.launchpad.net saucy/main Translation-en_US                                                
Ign http://ppa.launchpad.net saucy/main Translation-en                                                   
Fetched 22,9 kB in 12s (1.851 B/s)
Reading package lists... Done

score 1 · Answer 1 · answered Jul 30 '15 at 09:44

Simply open Software & Updates via your Dash and you will see this

Activate the first checkbox and you will see this

Now, your sources.list is back.

The output of sudo apt-get update lists only the informations of your PPAs. The list-files are stored in the folder /etc/apt/sources.list.d

How to restore to default source list?

1 Answers1