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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17 views

I can't do “sudo apt-get update” (malformed entry 54 in sources.list)

I see there are some similar questions but there's no solution there for my case. At least none that I could understand. When I type sudo apt-get update, I get a response: E: Malformed entry 54 in ...
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1answer
40 views

Ubuntu Software 16.04 not opening

Ubuntu Software is not opening "On click" icon blinks and then goes inactive. Does not open any window. How can I reinstall Ubuntu Software. Did a synaptic update and encountered the following ...
0
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0answers
36 views

Is there a Windows Cortana voice equivalent in Linux? [duplicate]

I really like Windows Cortana voice or at least the idea of Cortana voice. I'm running ubuntu 16.04. Is there a voice assistant for ubuntu?
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2answers
31 views

What does “N.B. software” refer to in a /etc/apt/sources.list?

In my trusty sources.list I see these comments: ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ##...
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3answers
14k views

How to install rar (no installation candidate)?

I need the package rar. But I get this error whenever I try to install it: Reading package Lists... Done Building dependency tree Reading state information... Done Package rar ist not available, but ...
1
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2answers
400 views

How to resolve hash sum mismatch — solution provided here does NOT work!

I have struggled for hours on end to fix a serious problem which started after the turn of the year. I cannot make Synaptic reload! I have read through the questions here as well as the answers. I ...
3
votes
1answer
6k 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
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3answers
8k 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 ...
8
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8answers
15k views

The new software center in Ubuntu 16.04 shows no application data found

This is the error I get when I open the software center. I've tried rebooting and running sudo apt-get update but I see no improvement. It worked earlier but I don't know what went wrong since then. I'...
1
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2answers
49 views

What are the dangers of using an unsupported Ubuntu version? [closed]

Non-LTS versions of Ubuntu only receive security updates for up to 9 months after their release (for Ubuntu 15.10, until 07/2016) and are not recommended for use after the expiration of the support. ...
1
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2answers
492 views

Editing sources.list

I have edited the sources.list file in order to install a distribution of ns2. However when I run sudo apt-get update command it gives a 404 error that the package could not be located. looking at ...
8
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2answers
50k 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?
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3answers
180 views

how does adding a ppa with a curl command work?

This link discusses different ways to install nodejs and npm. One of the methods was installing it via ppa. curl -sL https://deb.nodesource.com/setup | sudo bash - He used the above command to add ...
3
votes
1answer
58 views

Unable to update with 'apt-get': errors

Can't run sudo apt-get update , I get errors like: E: Type '--2016-05-25' is not known on line 1 in source list /etc/apt/sources.list.d/playonlinux.list E: The list of sources could not be read.
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3answers
18k views

How do I restore the sources.list file?

I accidentally removed my /etc/apt/sources.list file. Is it hosted by Canonical somewhere so I can re-add it to the system? It's a bit of an emergency, so I hope someone can provide a quick answer.
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votes
1answer
30 views

GPG error: http://archive.cronical.com trusty InRelease: Clearsigned file isn valid, got 'NoDATA'

I'm getting this error when I try to update ubuntu 14.04: GPG error: http://archive.cronical.com trusty InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)...
0
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0answers
38 views

Is it better to install unity3d via ubuntu make or from the official website?

Unity3D can be installed from a .deb file from here. There's also ubuntu-make which can install Unity3D. Which would be the better choice in terms of stability and updates?
143
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25answers
235k 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 (/var/lib/apt/lists/archive....
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votes
1answer
28 views

Error Installed packages have unmet dependencies , error with the sources.list file

I am trying to update my computer, but I am getting the following error: 'Unknown Error:'<class 'SystemError'>'(E: opening etc/apt/sources.list-ifstream::(13:permission denied))' Please ...
0
votes
2answers
34 views

Script to enable “source” downloads in a deterministic manner

I wrote a couple of scripts to help users pull their current kernel source package, apply some patches of mine, and build it as a .deb package with make-kpkg. One of the few steps that requires manual ...
0
votes
1answer
26 views

Identifying an application using network

When I ran the following command sudo netstat -lantp | grep -i stab | awk -F/ '{print $2 $3}' | sort | uniq on the terminal to check which applications are using the network connection, I got the ...
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0answers
12 views

remove Duplicate sources.list [duplicate]

How to remove Duplicate sources.list entry? Can anyone help me fix this I am running elementary OS but it should work like Ubuntu Duplicate list
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0answers
2k views

Wrong sources.list entry or malformed file

I'm kinda new to this website so I don't know the policies, but I really need some help with an ongoing issue that has become quite annoying. I moved from Ubuntu 14.04 to Linux Mint 17.2 Rafaela (I ...
1
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1answer
638 views

What is the default repositories on Ubuntu 16.04 LTS 64-bit?

I followed some commands online to install skype but now my repository list is filled with stuff i dont want. How can i restore back the list in Ubuntu 16.04 LTS 64-bit? OS:Linux Ubuntu OS Version:16....
56
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4answers
264k 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.
0
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0answers
53 views

How do I go from what I see in sources list to correct PPA name?

This is something that has been bothering me for a while. I had some problems with conflicts after I added some repositories. Then it turns out I needed to remove them. I wanted to use the command. ...
1
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1answer
117 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 ...
0
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3answers
345 views

dpkg interrupted error while downloading

I tried to install wine. Since it was taking more than an hour I restarted the system. I found the following error when I tried to open synaptic package manager. E: dpkg was interrupted, you must ...
0
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0answers
21 views

“Duplicate Sources” Error [duplicate]

When installing software, I receive the following error: W: Duplicate sources.list entry http://dl.bintray.com/sbt/debian/ Could anyone tell me how to solve this problem? I've already tried this: ...
0
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0answers
22 views

local (private) mirror: is there a way to keep the original `sources.list`?

I have an own private mirror in a closed-off network. I mirror from several sources and therefore have to adapt all the sources.list files on the clients in that network. Every entry in the original ...
0
votes
2answers
385 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. ...
0
votes
1answer
30 views

Unable to get the sources for my kernel

I am trying to get the sources for my kernel Here is the source.list file deb http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe deb http://archive.ubuntu.com/ubuntu/ trusty-...
0
votes
1answer
25 views

sources list path error - how to reset it?

Ubuntu Server 15.10 I think this might have occurred during the owncloud config process. After login theres a message stating: find: `/etc/apt//sources.list': No such file or directory I would ...
0
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0answers
9 views

What are the steps to get *only* the sources of a specific package?

After many searches and struggling I finally found what I was looking for: https://sources.debian.net/src/libgnomekbd/3.6.0-1/ But the problem is that I need all the files in an archive. If you ...
4
votes
0answers
996 views

Ubuntu 14.04 apt-get fails on Google Chrome [duplicate]

I just installed Ubuntu 14.04 on a new hard drive. When I run sudo apt-get update, I get the following error: W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release Unable to ...
0
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0answers
19 views

'E: Malformed line 52 in source list/etc/apt/sources.list (dist parse) [duplicate]

I checked all the threads provided. tried to comment line 52...or commented it. Uninstall software cener. But nothing is working. Atlast i lost software updater too... Line52:deb http://archive.ubuntu....
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0answers
8 views

CollabNet Subversion Edge 4.0.10

SVN takes a long time to list the contents of the Working copy of each the repository - upto 5 minutes or longer each and often is running at 85%+ of the CPU. Once SVN has listed the contents and ...
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0answers
26 views

how to keep backup of all softwares installed from ubuntu store?

i installed some heavy softwares around 2-3 GB of total in case ubuntu gets corrupted (recently it got due to some lightgm,gdm problem it got due to Gnome mayb i tried almost everything but ultimately ...
4
votes
1answer
146 views

What is the format of the Ubuntu sources.list file?

What is the format of the /etc/apt/sources.list file for Ubuntu? As an example of the kid of information I am looking for, here is an explanation for Debian sources.list. However, the various ...
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0answers
76 views

How to install libevent 2.1 in Ubuntu wily

A program failed with undefined symbol: evutil_secure_rng_set_urandom_device_file which is a function in libevent 2.1. The current version in wily seems to be 2.0.5 (as of apt-cache search ...
2
votes
2answers
1k 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
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2answers
30 views
0
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0answers
7 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 gender=...
0
votes
1answer
25k 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
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0answers
49 views

Dupilcate sources.list entry

Duplicate sources.list entry http://ppa.launchpad.net/ubuntu-desktop/ubuntu-make/ubuntu/ trusty/main i386 Packages (/var/lib/...
0
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1answer
75 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 ...
34
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2answers
85k 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 http://...
15
votes
5answers
228k 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
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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
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1answer
56 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.