Questions tagged [software-sources]

Questions about managing software sources/repositories in Ubuntu. This can be done graphically through System Settings > Software Sources or from the command line through APT's CLI tools or editing /etc/apt/sources.list and related files.

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-1 votes
1 answer
877 views

Warnings while using apt-get update on Raspbian [closed]

I've been trying to install Plex on my pi and failing(Novice at anything computers). I've tried a few times, and I think I may have finally got it. Now when I go to update, and get these warnings: ...
0 votes
0 answers
117 views

How to download ATG 11.0 in ubuntu system?

I'm trying to download ATG 11.0 in my ubuntu system (version 18.04) from this site - This Link but the download option is not getting enabled instead its showing - "The Download manager is not ...
3 votes
1 answer
537 views

How to fix sudo apt-get update

I have Ubuntu 18.04.2. When I run sudo apt-get update, the terminal prints: Err:15 http://ppa.launchpad.net/flimm/ooo-thumbnailer/ubuntu bionic Release 404 Not Found [IP: 91.189.95.83 80] ...
9 votes
2 answers
6k views

Failed to fetch Google Earth 32-bit

Running sudo apt update, I got this error: W: Failed to fetch http://dl.google.com/linux/earth/deb/dists/stable/Release Unable to find expected entry 'main/binary-i386/Packages' in Release file (...
2 votes
1 answer
13k views

apt-get update returns 404 errors for Debian repository on Ubuntu 14.04

Before posting I read through several questions with a similar subject. Still, since I couldn't find any that specifically mention the repository I'm having trouble with, I didn't feel confident ...
3 votes
1 answer
54k views

How to fix "/etc/apt/sources.list" could not be read error? [duplicate]

I tried to reinstall sopcast with the following command: sudo tee -a /etc/apt/sources.list but nothing happened, then I try the next command: sudo apt-key adv --keyserver keyserver.ubuntu.com --...
4 votes
1 answer
10k views

How to install a 'patch' program?

I am unable to install patch program. It is showing: unable to locate packages. Also the folder etc/apt/sources.list is showing main restricted How to overcome this?
13 votes
1 answer
13k 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.
2 votes
2 answers
2k views

How can I set sources.list to have the latest stable version? [duplicate]

Is it possible to set the sources.list file to automatically have the latest stable version of the operating system, like in Debian when you set "stable"?
11 votes
1 answer
30k views

Bash (on Windows 10) doesn't locate any package [duplicate]

I have installed Bash on Ubuntu on Windows (after enabling the feature in settings) I don't remember what I did, but the result was that apt-get doesn't locate ANY package With and without sudo: $ ...
3 votes
1 answer
853 views

Why ubuntu doesn't use https as default for apt update? [duplicate]

If we do an apt update or apt-get update it uses http for fetching updates. We can change the source to secure https by editing the url of sources.list /etc/apt/sources.list but most cases this doesn'...
0 votes
1 answer
183 views

When using a country repository pool on sources.list, will update use only up-to-date mirrors?

On software updates, we can choose country pools or specific servers, when checking servers on https://launchpad.net/ubuntu/+archivemirrors we can see that some are up-to-date, while others are ...
2 votes
0 answers
3k views

"Skipping acquire... component misspelt in sources.list?" when trying to sudo apt update [duplicate]

27 packages can be upgraded. Run 'apt list --upgradable' to see them. W: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://gb.archive.ubuntu.com/ubuntu bionic ...
3 votes
3 answers
5k views

I cannot enable canonical partner and independent, why?

On Software and Updates under Other Software tab, I want to enable Canonical Partner and Independent, after I clicked the checkbox and input my password, the checkbox stay unchecked no matter how many ...
6 votes
2 answers
3k views

What happened to Freemind?

I can no longer find FreeMind in Ubuntu repos and their homepage is mostly blank. Does anyone know if it's still being actively developed, or are you aware of an alternative software that's capable ...
0 votes
1 answer
303 views

Don't understand error message [duplicate]

malformed line 1 in source list /etc/apt/sources.list.d/home:stevenpusser.listn(type) E:The list of sources could not be read. Now I can't issue any sudo commands. This message is greek to me. I can'...
1 vote
1 answer
4k views

Error: "Failed to fetch http://security.ubuntu.com/ubuntu/dists/bionic-security/main/binary-armhf/Packages 404 Not Found [IP: 91.189.91.26 80]"

Here is my sudo apt update: Hit:1 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu bionic InRelease Hit:2 http://repo.steampowered.com/steam precise InRelease ...
3 votes
0 answers
52 views

Debian Repo being used on Ubuntu and cannot be removed [duplicate]

My Issue: GPG error: http://cdn-fastly.deb.debian.org/debian stretch-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ...
48 votes
3 answers
97k views

How do I enable the "backports" repository?

How to enable the backports repository so I can get newer versions of software?
3 votes
1 answer
155 views

Cannot add PPA key in 18.04: NameError: name 'KUrl' is not defined

I am trying to add a ppa key trough Software Sources - Authentication - Import key file. I have solved access to Software Sources interface as described here: Software Sources GUI in Kubuntu 18.04. ...
0 votes
1 answer
67 views

Locate installation file I downloaded at home

The security of the network at my workplace doesn't allow downloads for many installation files. I have a work laptop and a desktop, both of which run Ubuntu. I needed to install a couple software ...
2 votes
0 answers
2k views

Can't update from local, insecure repository [duplicate]

I'm trying to update a fresh 18.04 install from a local, insecure (no SSL inside corp network) repository hosted in artifactory. Usually I'd do: sudo apt-get --allow-unauthenticated update but this ...
-1 votes
1 answer
103 views

Update interrupted because of a resource 404 [duplicate]

Err:1 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main i386 linux-headers-4.4.0-135 all 4.4.0-135.161 Failed to connect [IP : 194.158.119.186 80] My ...
2 votes
0 answers
2k views

"Failed to download repository information" after updating Ubuntu [duplicate]

I used the Software Updater and at the end it said Failed to download repository information Check your Internet connection I saw an article said use sudo apt-get update I tried and it said ...
2 votes
3 answers
10k views

sources.list broken -- missing universe, multiverse etc.. in 18.04.1 server? [duplicate]

So I just fresh installed 18.04.1 server from this ISO: ubuntu-18.04.1-live-server-amd64.iso This is how my /etc/apt/sources.list looks: svy@emerg-reg-srv:~$ cat /etc/apt/sources.list deb http://...
0 votes
0 answers
13 views

Is there a log file equivalent to manifest.txt [duplicate]

I am trying to revert everything installed while compiling dependencies. I looked inside /var/log/dpkg but couldn't find the location of the installed libraries. Which log can I look into to remove/...
0 votes
3 answers
2k views

"Failed to fetch ... Hash Sum mismatch" error when I try to upgrade Ubuntu 16.04 to 18.04

How can I upgrade Ubuntu 16.04 to 18.04? Failed to fetch http://bd.archive.ubuntu.com/ubuntu/pool/main/l/llvm-toolchain-6.0/libllvm6.0_6.0-1ubuntu2_amd64.deb Hash Sum mismatch Failed to fetch ...
0 votes
2 answers
547 views

source code for application launcher plasmoid

Can someone please show me where can i find the source code for the application launcher plasmoid? I am unable to find it on KDE base. Do I have to download entire source for KDE ?
0 votes
0 answers
86 views

Unable to start Ubuntu after installing Gedit dependencies

While I was trying to build Gedit on Ubuntu 16.04, I followed the prerequisite dependencies and installed them religiously. I noticed that I lost my terminal color, and the preinstalled gedit theme ...
5 votes
1 answer
23k views

Apt package update is failing for Ubuntu 18.04 LTS

sudo apt update is failing ubuntu 18.04. E: Release file for http://in.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease is not valid yet (invalid for another 11h 10min 58s). Updates for this ...
12 votes
3 answers
35k views

How do I switch to a closer Ubuntu mirror?

After I have performed one of sudo apt-get install eclipse eclipse-cdt g++ procedure I found that Ubuntu is planning to download more than 400Mb and it will take more than 2 hours. It is too long. I ...
4 votes
1 answer
2k views

How is the sources.list file generated on installation?

I've recently tried to create a custom Ubuntu installer iso from the Ubuntu 16.04 64 bit server installer, with the aim of editing the /etc/apt/sources.list file. I unpacked the iso, expanded the ...
7 votes
2 answers
8k 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 ...
4 votes
1 answer
3k views

Many apps are missing from Ubuntu Software app

I tried to enable additional repositories according to the instructions from Ubuntu Add additional software repositories wiki, however my Ubuntu Software app is still missing a lot of popular apps. Is ...
1 vote
1 answer
6k views

How can I install Kali tools in Ubuntu 14.04? [duplicate]

I was reading a tutorial about installing Kali tools in Ubuntu. at the start, the instructions say to add repositories like this: deb http://ppa.launchpad.net/wagungs/kali-linux2/ubuntu ...
0 votes
1 answer
188 views

How to install an old version of Open Office?

I am trying to reinstall Antidote (a spell checker good with French grammar). It has to be integrated with (for example) Open Office. I have the install CD but it can only integrate with Open Office ...
2 votes
1 answer
722 views

Error when running update: Unable to find expected entry 'restricted/source/Sources' in Release file (Wrong sources.list entry or malformed file)

I have installed Ubuntu 14.04 LTS through bootable USB. When I try to update Ubuntu using the command sudo apt-get update I am getting the below errors. Can anyone tell me what the problem is? Get:...
8 votes
1 answer
9k views

What is "deb deb-src stable/xenial main" in /etc/apt/sources.list [duplicate]

I was going through Repository files and in file /etc/apt/sources.list, saw these lines : deb http://ppa.launchpad.net/elementary-os/stable/ubuntu xenial main deb-src http://ppa.launchpad.net/...
4 votes
0 answers
1k views

Picking 'linux-signed' as source package instead of 'linux-image-4.15.0-23-generic' [duplicate]

I added deb-src http://security.ubuntu.com/ubuntu bionic-security main into my sources.list, did apt update Here's what I'm getting: vm@vm-Standard-PC-i440FX-PIIX-1996:~$ apt-get source linux-...
0 votes
1 answer
680 views

Do I need to apply the diff that came with my ubuntu kernel source?

I did apt-get source linux-... I received 3 files: linux_4.15.0-23.25.diff.gz linux_4.15.0.orig.tar.gz linux_4.15.0-23.25.dsc Do I need to apply the diff? Also, can I assume everything is ...
0 votes
0 answers
598 views

sources.list: vs-bionic vs stable-bionic

When looking at the mono installation instructions for Ubuntu I see they use vs-bionic main instead of stable-bionic main that I've seen elsewhere. Doing a search for "vs-bionic" is not revealing ...
0 votes
1 answer
62 views

Resource list errors cannot be fixed , makes me unable to install anything [duplicate]

I tried methods like deleting or updating the source list that I found on the web but these didn't fix it.
1 vote
1 answer
6k views

Use Old PPA if New PPA is Not Available for New Ubuntu Version

1. What is best practice when a PPA has not been updated for a new release of Ubuntu? 2. Is it possible to use the PPA from the previous Ubuntu version? If so, how? Every time a new version of ...
7 votes
4 answers
8k views

Is it possible to install ZSNES Emulator from default software sources?

I can find it listed when I search for "zsnes" in the Ubuntu Software Center but it doesn't have the "Install" button. If I click the "More information" button I'll get a "package not found" message. ...
-1 votes
1 answer
2k views

Cannot update and terminal says sources could not be read [duplicate]

$ sudo apt-get update E: Type ' < !DOCTYPE' is not known on line 1 in source list /etc/apt/sources.list.d/medibuntu.list E: The list of sources could not be read.
1 vote
0 answers
53 views

Is it safe to use repos of old release in a newer one?

I found these instructions in this documentation for Ubuntu 17.x and 18.x: Add a repo to /etc/apt/sources.list deb http://cz.archive.ubuntu.com/ubuntu xenial main Install dependencies. sudo ...
5 votes
3 answers
10k views

Error with apt-get update: Invalid 'Date' entry in Release file

I am getting an error in sudo apt-get update. Can anyone please help me fix it? Ubuntu 16.04 W: Invalid 'Date' entry in Release file /var/lib/apt/lists/ developer.download.nvidia....
9 votes
2 answers
419 views

Find which versions of Ubuntu a package in a 3rd-party repository is available for?

I have a link to a 3rd party package repository, for example something like this: http://eddie.website/repository/apt stable main There is a particular package available from this repository (for ...
0 votes
1 answer
6k views

How I can I unsource my environment?

I have source my environment and some environment variables were set, but I need to shift back to my previous environment, how should I do it? Is there any way to move to the last environment?
1 vote
1 answer
20k views

E: Package 'apache2' has no installation candidate

When I tried to install apache2 on Ubuntu 14.04, I got the following error message: root@Final-Gitsetup-Developers:~# apt-get install apache2 Reading package lists... Done Building dependency tree ...

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