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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2
votes
2answers
794 views

difference between sources.list and sources.list.distUpgrade

On ubuntu, in the /etc/apt/, there are two files: sources.list and sources.list.distUpgrade. But I only know they are used to update system. However, what are the the difference between them? by the ...
0
votes
2answers
26 views
2
votes
1answer
5k views

Ubuntu 13.04 can't open software & updates / software sources

I am using MacBook Air Mid 2012 running Single OS which is Ubuntu (Raring Ringtail). Its been a month I'm using Ubuntu and everything works fine, recently i can't open software & updates, when i ...
0
votes
0answers
6 views

Selecting/Filtering data for analysis in Gephi

I have a question regarding filtering and statistics in Gephi. Specifically, I would like to run statistical analyses such as average degree only for a part of the data (e.g. all data where ...
0
votes
1answer
18k views

There are no repos [closed]

I have PC Engines Apu . I wanted to install Linux to Apu over PXE. I m trying to install this on ubuntu 14.04 LTS. I am Using Ubuntu 14.04 LTS #yum install tftp-server syslinux httpd dhcpd There ...
0
votes
0answers
30 views

Dupilcate sources.list entry

Duplicate sources.list entry http://ppa.launchpad.net/ubuntu-desktop/ubuntu-make/ubuntu/ trusty/main i386 Packages ...
0
votes
1answer
24 views

Unable to load software sources, software & updates in ubuntu 14.04

Having trouble getting any of the above to run. I've tried various upgrade and reinstall suggestions from other forums but with no luck. Software updater claims everything is up to date, but I can't ...
33
votes
2answers
70k 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 ...
0
votes
3answers
7k views

I can't find any of my downloaded apps in the dash

I have just installed Ubuntu and have problems with finding any of the apps/programs that I have downloaded form the software center. When I search for them in the dashboard they are not there. I have ...
13
votes
5answers
198k 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 ...
0
votes
1answer
4k views

Sudo apt-get update problem 12.04

Please Guys help me to fix this issues with update my Ubuntu 12.04 desktop: Get:38 http://us.archive.ubuntu.com precise/universe Translation-en [3,341 kB] Fetched 24.5 MB in 7min 9s (57.1 kB/s) ...
1
vote
1answer
52 views

Why isn't boot-repair in the official Ubuntu repositories?

Why is this the case? Should I add a PPA to install it/get updates? I thought it was licensed under the GPL.
0
votes
1answer
47 views

Unable to update ubuntu 14.04 LTS by using 'sudo apt-get update'

When I'm trying to update ubuntu 14.04 LTS, I got this error message: E: Malformed line 1 in source list /etc/apt/sources.list.d/virtualbox.list (dist) E: The list of sources could not be read. ...
0
votes
0answers
31 views

Error while using “sudo apt-get update” [duplicate]

I use Ubuntu 14.04, there was a problem with my sources.list file so I removed the file using this command: sudo rm -fr /etc/apt/sources.list Now when I try to update the software using: sudo ...
0
votes
0answers
11 views

Huawei modem and Cell C

I use a Huawei Modem and Cell C is my service provider. They tell me that they do not have the software for Ubuntu. Can someone help me?
0
votes
0answers
24 views

Updates suddenly very slow

I'm trying to update system and the process is suddenly extremely slow, both in Update Manager and via terminal command sudo apt-get update. I have already switched sources to "best server" via ...
1
vote
0answers
27 views

How to properly manage PPAs just from the command-line

What are the recommendations for managing other repositories and PPAs without the help of Software and Updates GUI. How to know if a repository/PPA already, - exist - enabled or - disabled ? How to ...
0
votes
0answers
17 views

How to enable source package download for a section of private ubuntu repository

We have created a internal ubuntu repository. It has a few custom sections which has packages that were custom built. Currently, no source packages are provided for download for the repository users. ...
0
votes
1answer
359 views

Synaptic Package Manager -E-“cache open”, E - Default-Release not available

In an attempt to re-install Bash I tried to open Synaptic Package Manager but got this message E: The value 'precise-updates' is invalid for APT::Default-Release as such a release is not available in ...
-1
votes
1answer
81 views

Apt-get update and sources.list [duplicate]

First of all, I'm complete linux noob. Please keep explanations simple ) I'm using 14.10 (Utopic unicorn, I believe) on Virtualbox. I've run into cascade of problems with JDK installation (inability ...
6
votes
2answers
72 views

Is there any limit to the number of PPA's I can add to the system? Why?

I came across a post which suggests: Do Not instruct people to add PPAs unless it is necessary And one of the reason it has mentioned: There is a finite number of PPAs that a user can add. ...
118
votes
25answers
200k 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 ...
0
votes
1answer
68 views

no wi-fi connections visible [duplicate]

laptop: MSI CR61 Dual Core 4GB 500GB HD8210G wi-fi card: Realtek RTL8723AE Wireless LAN 802.11n PCI-E NIC system: ubuntu-14.04.3-desktop-amd64 experience with ubuntu: beginner problem: wi-fi ...
0
votes
0answers
40 views

Is there any “Everything Search” like searching software in Ubuntu 14.04?

I read the Post, but after installing "Desktop Search" I found that it is not working well, e.g. it can't find the files and folders which don't lie on the main drive. And also I've noticed that in ...
0
votes
0answers
14 views

Trouble Installing Gdebi [duplicate]

I am trying to install GDebi Package Installer so I can install apps without launching the storefront, but I always get error in pic related. And yes, I have tried sudo apt-get update in the console. ...
0
votes
2answers
50 views

VirtualBox error when updating

Here is the error when I try and update: W: Failed to fetch http://download.virtualbox.org/virtualbox/debian/dists/vivid/InRelease Unable to find expected entry 'contrib/source/Sources' in Release ...
0
votes
0answers
383 views

Updating Cache takes forever!

When I try to update a source or delete one, and it tries to update the cache, It take absolutely forever. It is always stuck on "Querying software sources" and it seems it never make progress even in ...
0
votes
2answers
2k views

Why is GNOME Software Center not included in Ubuntu GNOME (14.04/14.10)?

So I installed Ubuntu GNOME 14.04 (which included GNOME 3.10) and noticed that GNOME Software Center isn't included and isn't available through the repositories. Then I tried installing Ubuntu 14.10 ...
1
vote
1answer
46 views

How to fix gpg not available error?

I am trying to kickstart an Ubtuntu installtion using an existing one. I rsynced the home dir and am now in the process of duplicating the installed packages. Since I have some extra ppa in my setup, ...
2
votes
0answers
35 views

How to put a comment in a .list file?

How to put a comment in a .list file? I'm accessing my sources.list Repositories to check if there are required amount of Repositories or not. There a can see a line which starts with # and i got a ...
34
votes
3answers
113k 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.
1
vote
1answer
54 views

Unable to fetch file(openfoam240) from sourceforge

I tried to install openfoam240 using the instruction given by Official Website, and I followed the instruction step by step. but I experienced an error that was showing the deb package could not be ...
2
votes
2answers
86 views

'sudo tee' command gone wrong | Removing a source.list that can't be read?

This has happened twice where I followed instructions on installing software and then having the software center open then close immediately as a result of running the commands from the instructions. ...
1
vote
1answer
626 views

source.list wrong by default in wily werewolf [closed]

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 ...
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 ...
3
votes
2answers
460 views

Installing software that is unavailable in standard repositories [decision tree]

What are the general steps I want to take to get a program installed on Ubuntu when the program has not been made into a package, or I need an updated software version from what would normally be ...
0
votes
2answers
1k views

How to build the Darling project on Ubuntu?

The Darling project is an open source Darwin/OS X emulation layer for Linux. I downloaded the source code with git and tried to build it with cmake but it failed. The document says I need these ...
1
vote
2answers
936 views

How to change the repository location while installing from live cd?

I am installing 14.04 from a live CD. While installing, it downloads updates from the Internet. I see it is currently downloading from http://in.archive.ubuntu.com/ Is there any way I can change ...
0
votes
3answers
84 views

apt-get not updating and almost everything i try to install have issues with dependencies [duplicate]

for the millionth time guys this isn't a duplicate question and if it is, them all the solutions don't work for me. i have seen this issue in a newly installed system. I tried all the things provided ...
0
votes
0answers
31 views

Is there any license requirement to publish the source code of Ubuntu touch?

I've just found that the source code of Ubuntu powered BQ phones is available on github. You can also flash/update the device using ubuntu flash utility and various channels (stable, dev, nightly). ...
0
votes
1answer
29 views

Software/games compatibility with Ubuntu from Windows platform w/out emulator

I would like to know if anyone has come across a stable and reliable Windows emulator for software only available to Windows platform for Ubuntu? I know there is WINE, but still wondering about ...
11
votes
2answers
2k views

Why is synaptic downloading packages for both amd64 and i386?

I'm running Oneiric 64-bit, and since I've upgraded I notice Synaptic has split the repositories into 64-bit and 32-bit, but it's downloading archive lists for both of them, taking twice the time as ...
0
votes
2answers
39 views

add text to read only file [duplicate]

as written here, I should put this lines: deb mirror://mirrors.ubuntu.com/mirrors.txt precise main restricted universe multiverse deb mirror://mirrors.ubuntu.com/mirrors.txt precise-updates main ...
0
votes
0answers
26 views

apt ignore URLs for certain architecture

I'm using qemu to emulate an x86 CPU on my ARM PC (with success). Therefore i have two different URL's in my /etc/apt/sources.list: http://archive.ubuntu.com (for i386) http://ports.ubuntu.com (for ...
3
votes
4answers
313 views

How does my Dongle work automatically?

I've connected a '3G Dongle' to my PC and I've wondered how it automatically connected in Ubuntu 14.04 without installing any supporting software of the Dongle manually, but I've installed that while ...
2
votes
2answers
1k views

How to run software which requires the latest Intel modules

I used this utility to upgrade all of my Intel modules on my machine, but soon after learned that it was a really bad idea to upgrade these because of incompatibilities, and especially with Unity. I ...
5
votes
2answers
4k views

Installing the most recent version of the Z shell

The latest release version of zsh is 4.3.14. I was wondering what is the easiest way to install it on Ubuntu. Is there a PPA for it? Also, is there a site that lists or collects Ubuntu PPA's for ...
0
votes
2answers
192 views

Comment & Highlight the PDF & DJVU files?

I have just started working with Ubuntu. My work includes a lot of books that to be read. Hence while reading, I need to --comment & highlight the characters in the form of PDF & DJVU file. ...
7
votes
2answers
41k views

Can I install Kali tools on Ubuntu?

I want to know if there is any way to install Kali tools like sqlmap, nikto, john, aircrack-ng, ... on Ubuntu 12.04? If yes, then how should I proceed?
1
vote
1answer
69 views

Compiler & Burner for 8051 Micro-Controller lab?

Till now In Windows, I've used Keil-C Software to Compile 8051 Micro-Controller Programs in C and Flash Magic Burner to burn/dump the software on hardware. But now I'm having Ubuntu OS. Hence I need ...