Refering to editing the software sources in Ubuntu. Can be done graphically through System Settings > Software Sources or from the command line using APT.

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21
votes
6answers
23k views

How do I remove a malformed line from my sources.list?

I have unistalled and reinstalled the Ubuntu Software Center as per info I found in a similar thread and I got the same response about line 91 or something like that. I just tried to upload a screen ...
23
votes
23answers
49k views

How to fix Duplicate sources.list entry?

I keep getting this warning whenever I try to run sudo apt-get update. W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages ...
3
votes
0answers
2k views

How do I fix “malformed line” errors in sources.list? [duplicate]

Possible Duplicate: How do I remove a malformed line from my sources.list? I had problems with my movie player. The sound was fine but the picture seemed to hesitate or stick or pause ...
16
votes
4answers
81k views

How do I enable the “Universe” repository?

How do I get to Universe Repository of Ubuntu software as mentioned in Ubuntu 12.04 LTS? I am installing 12.04 Ubuntu. Please help.
10
votes
2answers
22k views

How do I enable the “multiverse” repository?

I keep seeing places refer to the "multiverse" repository as a place I can get software, how can I enable this repository? Please specify how to do this graphically and via command line.
24
votes
5answers
16k views

How do I enable the “partner” repository?

I keep seeing places refer to the "partner" repository as a place I can get software, how can I enable this repository? Please specify how to do this graphically and via command line.
5
votes
4answers
31k views

'Some index files failed to download' while updating

When running sudo apt-get update I get these following errors: Err archive.ubuntu.com quantal InRelease Err archive.ubuntu.com quantal-updates InRelease Err archive.ubuntu.com quantal-backports ...
7
votes
0answers
6k views

Duplicate sources.list entry but cannot find the duplicates? [duplicate]

I'm running 12.04 64bit, and every time I update using the command land, I always get W: Duplicate sources.list entry http://gb.archive.ubuntu.com/ubuntu/ precise/restricted amd64 Packages ...
13
votes
3answers
2k views

How do I add the “proposed” repository?

I'm trying to either test a fix that's been proposed or I want to volunteer to test stable release updates before they are pushed out to general users, how can I enable the "proposed" repository?
13
votes
2answers
20k views

How do I enable the “backports” repository?

How to enable the backports repository so I can get newer versions of software?
12
votes
4answers
16k views

How to remove a repository?

Please let me know how to remove certain repositories in Ubuntu 11.04. I am getting the following errors while updating. sudo apt-get update Err http://ppa.launchpad.net natty/main Sources ...
7
votes
2answers
3k views

How do I change which mirror I get updates and software from?

How do I select which server Ubuntu will get it's software and updates from? I know how to find the list of mirrors on the web, but not how to use them.
4
votes
2answers
2k views

How do I find all of my software sources?

Broken software dependencies are often caused by incompatible third party repositories. I am asked to provide a list of software sources (also known as software repositories). How can I quickly get a ...
11
votes
3answers
18k views

How do I enable the “Universe” repository from the command line?

How do you use terminal to enable Universe source? Or any those 4 from Software Sources: Main, Universe, Restricted, Multiverse Main is on by default and Restricted is on if durring Ubuntu ...
2
votes
0answers
178 views

“Malformed line 6” error in my /etc/apt/sources.list [duplicate]

Possible Duplicate: How do I remove a malformed line from my sources.list? I'm new to Ubuntu so I don't really know much yet. I encountered this problem while on the terminal: E: Malformed ...
11
votes
0answers
19k views

How to fix “Duplicate sources.list entry” warning? [duplicate]

Every time I try to do some update (sudo apt-get update) it says: Reading package lists ... ready W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ need /partner amd64 Packages ...
7
votes
0answers
5k views

Updates don't install because of “untrusted packages” [duplicate]

Possible Duplicate: Update Error : Require Installation Of Untrusted Packages I have "darktable + extras" installed (I added their ppa repository to the sources manually). The extras ...
2
votes
2answers
5k views

How to download source code with apt-get?

I'm trying to download source code of certain packages, for example rhythmbox, for learning purposes. I want to do this through apt-get, with the apt-get source command. For some reason, apt-get ...
7
votes
5answers
14k views

How to fix “-5 No address associated with hostname error” while updating?

I am getting this error frequently while updating Ubuntu 12.04 LTS. How can I fix it? Log is: Ign http://archive.scrapy.org precise/main Translation-en Fetched 6,620 kB in 1min 21s (81.2 kB/s) W: ...
7
votes
4answers
82k views

Apt-Get Update: failure to fetch; can't connect to any sources

I realize there are dozens of "apt-get update: failure to fetch" questions (I read through all I could find), but my present circumstance is unique to 12.04 and it affects all sources; not just ...
9
votes
3answers
4k views

How to set up an apt-cacher server?

I have more than 500 systems running ubuntu 10.04, ubuntu 10.10 and ubuntu 11.04. It is difficult for us to install new packages to these machines from internet, because of the high bandwidth usage. I ...
8
votes
5answers
26k views

Solving the Ubuntu 12.04 Update Error: (-5 - No address associated with hostname)

Problem Description: Each time i try to download the updates for my operating system (Ubuntu 12.04) i get the following list of error messages: W:Failed to fetch ...
2
votes
2answers
688 views

sudo apt-get update giving error about duplicate

Getting an error about duplicate sources, how can I get around this?
13
votes
1answer
5k views

Assign highest priority to my local repository

Summary How can I make apt-get prefer local repository packages instead of downloading again the same package version from official repositories? The local repository is signed and trusted. We've ...
33
votes
4answers
11k views

How can I remove the Translation entries in apt?

This is the output of aptitude update: Ign http://archive.canonical.com natty InRelease Ign http://extras.ubuntu.com natty InRelease Ign http://dl.google.com stable InRelease Ign ...
12
votes
1answer
24k views

How do I change mirrors in Ubuntu Server from regional to main?

I have a Lucid Server (10.04) set up and I would like to change the mirror from US (or any other country) to the Main Ubuntu Mirror. For example my two first entries in sources.list are: deb ...
8
votes
2answers
2k views

Why are my apt-get update fetches so large? [duplicate]

Possible Duplicate: the size of apt-get update lists is too big After clean installing 12.04 (Release Candidate), and accepting all updates and upgrades till today, I find that sudo apt-get ...
9
votes
3answers
3k views

How do I add a software source?

Sometimes I see sites offering Ubuntu packages via something like Add this line to your software sources: deb http:// something something How can I add these to my package manager so I can ...
9
votes
0answers
10k views

How do I remove this duplicate sources.list entry? [duplicate]

Sometimes, when I run sudo apt-get update or install an app sudo apt-get install I get the error below at the bottom in the gnome-terminal and I can't remove it. I searched for it in the ...
2
votes
0answers
162 views

how can i solve this problem in error during update? [duplicate]

Possible Duplicate: How do I fix “malformed line” errors in sources.list? I received this error message during an update and I do not know how to solve? could not initialize the package ...
2
votes
2answers
2k views

having problems with update manager

I'm trying to update my Ubuntu system, but cannot do anything with the Update Manager. It loads up 3/4 of the way and then says: Could not initialize the package information An unresolvable problem ...
8
votes
2answers
17k views

Software Sources not found in Unity Dash Search

After upgrading to 12.04 from 11.10, I am no longer able to find Software Sources in Dash. I have installed software-properties-gtk, and can open via terminal, but cannot get Dash to find it? Is this ...
1
vote
1answer
1k views

Update Manager won't open (error related to pythonverbose)

I'm having an issue with update-manager. Last night, my computer restart suddenly during the update process. Now it won't open and it keep appearing on the notifier with a message warning that an ...
15
votes
1answer
3k views

How do I enable the “extras” repository?

I keep reading about an extras repository for Ubuntu with new software that comes out independently of the distro release. How do I enable it?
5
votes
2answers
641 views

apt sources.list disabled on upgrade to 12.04

After a do-release-upgrade, I'm now running ubuntu 12.04 LTS, as indicated below > lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: ...
3
votes
2answers
1k views

How do I enable the source code repositories?

I need to install build-dependencies of something, how do I ensure the source code section of my software sources is enabled?
2
votes
1answer
7k views

“Failed to fetch” while updating

I'm trying to update from ubuntu 12.10 lately but I keep getting the "Failed to fetch" error. W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/Release Unable to find ...
2
votes
0answers
2k views

bisig PPA causing 404 error? [duplicate]

Possible Duplicate: How can I fix a 404 Error using a PPA? I need default source list for ubuntu 10.04. Can anybody help me? Here is Mine:--- # Ubuntu supported packages deb ...
1
vote
4answers
2k views

How to fix GPG error/BADSIG while running apt-get update? [duplicate]

Possible Duplicate: What is the easiest way to resolve apt-get BADSIG GPG errors? Of late, I've been getting this long list of errors every time I run apt-get update from the terminal. ...
8
votes
6answers
23k views

How do I add a line to my /etc/apt/sources.list?

I am updating my Tor on Ubuntu and it states: Do not use the packages in Ubuntu's universe. You'll need to set up our package repository before you can fetch Tor. It then states that I have to ...
8
votes
2answers
13k views

Do files at /etc/apt/sources.list.d need to have an extension '.list'?

In /etc/apt/sources.list.d I have several files for custom repositories. All the names of those files end with .list. Is it obligatory that files in that folder should end with that extension? If ...
8
votes
1answer
2k views

What does Ign mean in update manager?

When I run update from the terminal, I get the following list where many repositories are shown with "Ign". Does it mean the update manager will always ignore updates from those repositories? Apart ...
7
votes
0answers
635 views

How bad are duplicate entries in sources.list? [duplicate]

What is sources.list? Is it like 'registry?' How important is it it to keep it 'clean?' When I did sudo apt-get update the last lines to display were these: W: Duplicate sources.list entry ...
1
vote
3answers
4k views

Unable to edit /etc/apt/sources.list file

When I try to edit sources.list file using the command: $:gksu gedit /etc/apt/sources.list It request for administrative password and when I type the password, It says incorrect and try again.What ...
1
vote
1answer
1k views

Sources missing in /etc/apt/sources.list, how do I get them back?

Somehow my Ubuntu install can't find what I believe to be very common packages.... E: Unable to locate package php5-curl E: Unable to locate package php5-gd I know this has something to do with my ...
1
vote
4answers
10k views

How can I get add-apt-repository to work?

Whenever I try to add a repository via the command line, I get the following error message: Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ...
0
votes
1answer
468 views

Can I prevent/restrict standard users from installing/uninstalling software?

Can i prevent/restrict standard user from installing/uninstalling software in Ubuntu 12.04 desktop?
0
votes
1answer
3k views

E: Malformed line 57 in source list /etc/apt/sources.list (dist parse) [duplicate]

Hi guys I've just got this error message when i opened update manager: E: Malformed line 57 in source list /etc/apt/sources.list (dist parse) any ideas how to solve this problem?
0
votes
6answers
9k views

apt-get keeps saying to check Internet, while I have a good connection

I need to check if I have updates for Ubuntu. I think it is 12.04 As you can see this is what it says: Failed to download repository information Check your Internet connection. Details: W:Failed ...
10
votes
2answers
77k views

“Unable to locate package” errors for all software

My apt-get doesn't install any programs. I try to install programs with apt-get install but always it shows same error: unable to locate package. For example I try to install the xbmc media center; ...