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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Why can't I see the key ID when using apt-key list?

From the question How can I remove gpg key that I added using apt-key add -? and this answer I learnt about sudo apt-key list. The answer notes I can use sudo apt-key del <keyid> where the can ...
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Upgrade from Focal to Groovy did not complete

I got a new PC pre-loaded with Ubuntu Focal Fossa. I changed the UI to Kubuntu and upgraded to Groovy Gorilla from Software Updater (after an update it told me an upgrade was available and I just ...
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How do I download vlc media player? E: Unable to acquire the dpkg frontend lock [duplicate]

E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3476 (aptd) N: Be aware that removing the lock file is not a solution and may break your system. E: Unable to acquire the dpkg ...
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56 views

Typo in sources.list?

When I try to add a repository using apt, I got a message of a possible typo in sources.list, saying it didn't find a component 'restrited'. I manually edited all such lines to say 'restricted' (after ...
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1answer
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Lenovo sources list added to /etc/apt/sources.list.d/

It looks like a lenovo sources list got added to my host without any interaction from me: /etc/apt/sources.list.d/oem-sutton.simon-banning-meta.list containing: deb http://lenovo.archive.canonical.com/...
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1answer
178 views

What does this command mean: 'grep main/source/Sources.gz Release'? Where is the file main/source/Sources.gz?

I'm trying to check the integrity of a source package following this tutorial (https://askubuntu.com/a/509816/978081), however, I don't understand step 4 onward as already described in the title. ...
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1answer
93 views

why do i have three apt sources.list files?

I recently updated to 20.10 and am having numerous problems, but the first being, I cant update apt. every time i try i get Reading package lists... Done Building dependency tree Reading state ...
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unable to get metrics of local ubuntu system on grafana

I Have installed prometheus and grafana on local ubuntu system to monitor the metrics like CPU usage, RAM utilization and Uptime. Both are successfully installed but checking the node_exporter service ...
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Do all packages get upgraded with sudo apt update and sudo apt upgrade?

In the software manager, reviews often complain about how the packages are out of date. But can't you upgrade the packages using sudo apt upgrade and update?
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Duplicate sources.list.d entry keeps coming back after being deleted

When I run apt update I get something like this: ... W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/packages_microsoft_com_repos_vscode.list:...
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How can I enable a repository or target temporarily and easily disable it without using vim/sed/etc? [duplicate]

I want to be able to temporarily enable non-free or contrib but I don't want to keep them enabled all the time as I try to utilize open source software as much as possible.
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Unable to locate package iperf

I tried to install iperf on ubuntu focal version, but I am unable. I updated the package and deleted the /etc/apt/sources.list, I recovered it back. But still getting the same error unable to locate ...
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Source issues - Skipping acquisition of configured file [duplicate]

Sorry for the n00b question, but I seem to have created an issue with my sources and all the googling and looking on SO doesn't seem to help. When I run sudo apt update I get the following: Hit:1 http:...
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Installing QCA Designer tool in ubuntu 20.04 LTS

I don't understand how to install QCA Designer tool in my ubuntu 20.04 LTS. Can anyone help me to solve this?
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E: Type '<!DOCTYPE' is not known on line 1 in source list /etc/apt/sources.list.d/winehq.list E: The list of sources could not be read [duplicate]

line 1 does not contain anything I have checked this by using sudo gedit /etc/apt/sources.list command. Got this error during repository update.
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What is the difference between installing a software from deb file, and installing it from the software market as snap package? [duplicate]

Recently, I was planning to install Opera browser on my system, so I visited the official website, and downloaded the .deb file, and installed it. However, to my concern, for every update, I will be ...
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How do I remove all of the files that have to do with TeamViewer in /etc/apt/sources.list.d? [duplicate]

I tried to install TeamViewer and have gotten this far (below) so I would like to delete it all and update my OS from 19.04 to 20.04 before proceeding with TeamViewer. My second question; if allowed, ...
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I want to connect metasploitable to my VPN

I have a VPN setup through pritunl, and I have no issues connecting to this using my host machine (Windows 10) and when connected, I can access my friend's device that is also connected on the VPN. I ...
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Upgrading from 18.04.5 to a newer edition [duplicate]

After trying to update my current edition through the terminal, I get these results among others: Ign:11 http://us.archive.ubuntu.com/ubuntu artful-updates InRelease Err:13 http://us.archive.ubuntu....
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Software Update crashes [duplicate]

Whenever I click "install now" on new updates - it starts running and promptly crashes. What can I do about this? I'm using Ubuntu 18.04. This is the error I get: W: Target Packages (main/...
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1answer
125 views

Errors after upgrading Ubuntu from 19.04 to 19.10

I was trying to download a package and I couldn't do it because the sources.list contained links that were deprecated. While upgrading, I saw the following error: An upgrade from 'disco' to 'focal' ...
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2answers
374 views

App “Software & Updates” not responding

I can't seem to get “Software & Updates” Application to appear after clicking on it. I don't know why. It's icon appears in the shortcut. What is the terminal command to activate this App? I have ...
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1answer
118 views

Maya not running and giving this error

I installed maya 2020 on ubuntu 20.04 lts about 2 months ago. I was able to get it to run then, but now I get the following error message when I try to run the program. If anyone knows what any of ...
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Brackets didn't showing the extension store to download. It's just loading and not defining the html tags automatically

Brackets Software didn't showing the extension store to download. It's just loading and not defining the html tags automatically
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328 views

Ubuntu Mate 18.04 sources.list [duplicate]

I have Ubuntu Mate 18.04 on my computer: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.3 LTS Release: 18.04 Codename: bionic When I run in terminal: sudo apt-...
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1answer
1k views

20.04 local repository not working for updates/installs

I successfully created a local repository on a 20.04 server VM in a VMware ESXi 6.7 environment using apt-mirror, however I'm not able to perform installs or updates from that repository. Multiple ...
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1answer
103 views

What are the consequences of using codename of a newer Ubuntu release in apt source?

If I'm using Ubuntu 18.04 Bionic Beaver, but I configure groovy (20.10) in the apt source, will I have problems installing the software? If a certain software is installed normally, will there be any ...
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1answer
48 views

What does the “-” symbol mean in the “Software and Upadates” Application

Installed Ubuntu 20.04, I mean its a fresh Install.. Opened "Software and Updates" Application.. Selected the "Source Code". I noticed that the "Source Code" Option I ...
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828 views

Certificate verification failed: The certificate is NOT trusted [duplicate]

Hit:1 http://dl.google.com/linux/chrome/deb stable InRelease Ign:2 https://download.sublimetext.com apt/stable/ InRelease Err:3 https://download.sublimetext.com apt/stable/ ...
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104 views

404 not found,when try to install anything [duplicate]

When I try to run apt-get update it shows this, root@karl:~# apt-get update Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease Ign:2 http://ppa.launchpad.net/danielrichter2007/...
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1answer
486 views

Security errors for Kali Linux repositories when I run “sudo apt update” on Ubuntu 20.04 [duplicate]

I've been trying to run sudo apt update and I get this output that doesn't seem to actually update: Hit:1 https://repo.steampowered.com/steam stable InRelease Hit:2 http://dl.google.com/linux/chrome/...
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An error occurred during the creation of the archive

I'm trying to download the source code of my application and this error came up: Sources builder queue: An error occurred during the creation of the archive (/var/www/html/app.zaraa.mn/siberian/var/...
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“Conflicing values set for option Trusted regarding source …” when running apt-get update

I am a ubuntu new user. I need help, I can't run sudo apt-get update on my linux. Any suggestion for me?
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216 views

added lines to /etc/apt/source.list that cannot be read [duplicate]

I'm trying to install an SDL library found here (https://altlinux.pkgs.org/sisyphus/classic-x86_64/libSDL2-2.0.12-alt2.x86_64.rpm.html). Per the instructions on the website I added two lines to my ...
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1answer
318 views

How to write /etc/apt/sources.list.d/mongodb-org-4.2.list to install mongodb on ubuntu focal fossa?

I am trying to clone and work on freeCodeCamp locally on my Ubuntu 20.04 focal fossa. When I reach step to install mongodb community. On mongdb official documentation and installation guide they have ...
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1answer
2k views

fix my apt update 404 ip not found [duplicate]

Can someone explain to me what is happening in this image? I'm relatively new to Ubuntu and I'm unsure how to fix this. None of my repositories are updating anything. I've tried replacing all of the ...
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1answer
157 views

Is it safety to erase the /etc/apt/sources.list.d folder files

I'm using Ubuntu Studio 20.04 LTS, upgraded from 18.04, upgrade from 16.04 LTS. Because some problem (not related with this question), I discovered I have a folder called /etc/apt/sources.list.d Where ...
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29 views

error when running the sudo apt update command [duplicate]

i recently updated to focal fossa and whenever I run the sudo-apt-update I get this error The repository 'http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu focal Release' does not have ...
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147 views

apt-get update cannot update the package list [duplicate]

I am using the ubuntu 16.04 xenial, and recently I found that when I want to install some software, whether it shows as Reading package lists... Done Building dependency tree Reading state ...
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119 views

Software and Updates - “other updates” greyed out

In Software & Update / Updates, security updates are set to download and install automatically. But the box for "when there are other updates" is greyed out so there's no way to enable ...
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3answers
2k views

How to install Zoom for online meeting?

Just installed Ubuntu 20.04. The latest version of zoom (software-install) I found is 14. Can anyone help me how to install zoom? I and my wife need it for online classes.
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58 views

Why security updates not included in apt-get repository? [duplicate]

I am using Ubuntu 20.04 LTS. When I use: sudo apt-get update sudo apt-get upgrade in the terminal, my software repository is updated, and the softwares are upgraded by some download. However, when I ...
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13 views

How do I install CERN ROOT? [duplicate]

How do I install CERN’s ROOT package, on Ubuntu 20.04? I’ve tried following the ROOT documentation, a number of online tutorials, and several online guides, and none have worked for me. I’ve ...
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44 views

Unable install Wine [duplicate]

When ever run this command I am getting following error please help me what can I do to install wine. $ sudo apt-add-repository 'deb http://dl.winehq.org/wine-builds/ubuntu/ artful main Hit:1 http://...
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260 views

Apt saying ALL the packages don't have any installation candidates

I have Ubuntu MATE 20.04 installed in my computer. Somehow now apt is absolutely broken. Every package doesn't have an installation candidate. Even worse, I can't download any package at all with ...
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1answer
155 views

How to purge WineHQ PPA? doesn't appears in sources after added

Kubuntu 20.04 64 Bit, fresh install with some gaming applications. ls -al /etc/apt/sources.list.d/ total 32 drwxr-xr-x 2 root root 4096 jun 2 08:04 . drwxr-xr-x 7 root root 4096 jun 2 08:04 .. -rw-...
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1answer
351 views

security.ubuntu.com repository doesn't have a release file

Output of sudo apt update in Ubuntu 20.04: Ign:1 http://security.ubuntu.com/ubuntu focal-security InRelease Hit:2 http://np.archive.ubuntu.com/ubuntu focal InRelease Hit:3 http://np....
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1answer
48 views

How much can I compile the open source code of Ubuntu

Ubuntu is a mix open source source code like the linux kernel and other sources like the one from Canonical My question is at which point can I see and compile its source code before being stuck on ...
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0answers
23 views

Malformed entry 54 in list file /etc/apt/sources.list (Component) [duplicate]

Whenever I run sudo apt update, I get: Malformed entry 54 in list file /etc/apt/sources.list (Component) The list of sources could not be read.
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1answer
503 views

What is http://LnxRelease-02/deb in Software and updates -> Other software?

This might have something to do with TeamViewer, because i have it installed and have found it mentioned on the internet with it. But still, http://LnxRelease-02/deb doesn't look like a real web ...

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