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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repository problem after upgrading from 20.04 to 22.04

I upgraded from 20.04 (focal) to 22.04 (jammy) and in the sources.list.d folder it is still showing some files with focal in them. Should I change them to jammy manually? deb http://ppa.launchpad.net/...
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2 votes
2 answers
134 views

How to do a release upgrade using private deb repositories?

We have Ubuntu servers (20.04 LTS) without Internet connection. In order to get new apt packages, we have a JFrog Artifactory server with Internet access and connection to our Ubuntu servers mirroring ...
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4 votes
3 answers
429 views

Software Sources not accessible from Discover

Updated to Kubuntu 22.04 today and i am facing a problem with Software Sources in Discover. I am able to install and remove programs using discover. My password is not being accepted. It was working ...
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Is there any way to find out which apt key belongs to which package?

I have two public signing keys from the same developer in apt-key list. How to find out which is the key of the installed package?
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How to exclude a host when using APT mirror protocol

It is convenience to me to use deb mirror://mirrors.ubuntu.com/mirrors.txt in my apt source file. Now I need to have a way to block a single host in that list which I know is not reachable (or very ...
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Ubuntu Software Updater > Settings & Livepatch (Software & Updates) not working

Hey Guys, I have following problem for several months and I don't know how to solve it. Every time I start the Software Updater, the button Settings & Livepatch does not do anything. If I search ...
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2 answers
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Is adding a PPA safe? [duplicate]

Are all PPAs safe? From where do I know which PPA refers to which packages? Can adding a PPA cause any harm? Or is it that the package when downloaded will cause harm? In particular is it safe to add ...
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1 answer
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What is the signed-by option in deb command?

I am new to Linux. I try to install gcloud CLI in my Linux and I am following the documentation here. From the installation part 1: Add the gcloud CLI distribution URI as a package source. If your ...
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Question about a Derivative that uses Ubuntu Repositories [closed]

Backstory: I'm using CUBIC to try to create my own derivative. Nothing that anyone will be interested in, just seeing how the process works (and I've definitely learned a few things about how the ...
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4 votes
1 answer
891 views

No updates for 4 months on Ubuntu 20.04 LTS

I have been away for 4 months and when I started Ubuntu again there were 0 updates available. That seems very odd to me. I tried several times and always got that the same result: packages are all up ...
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Pyferret is not generating figures

I have installed mininiconda3 and pyferret on ubuntu 20.04. Pyferret install successfully on miniconda (using the command conda create -n FERRET -c conda-forge pyferret --yes). Then I tried to plot ...
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3 votes
1 answer
993 views

How can you verify the /etc/apt/sources.list is current?

I am using Ubuntu 20.04. I follow the apt-update process but is there a way to verify the sources.list file is current? And does the update process use any auto-notification files on my server, like ...
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1 answer
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Error when I run sudo apt-get update - have disco on bionic system

sudo apt-get update Hit:1 http://security.ubuntu.com/ubuntu bionic-security InRelease Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease Ign:3 http://archive.ubuntu.com/ubuntu disco InRelease ...
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34 views

where to put the resource folder when manually installing program

I know that I can manually install a binary by placing it it in /usr/local/bin or some other folder in my PATH variable. I'm not sure how to go about applications that have a resource folder around ...
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1 vote
1 answer
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PAR file frontend Pypar2 will not install

OK, so I am trying to get a front-end for PAR and PAR2 files, being an old Windhoos dog, working and miserably failed. Must I edit the sources file, do I need to get the pypar2 package and store it ...
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10 votes
2 answers
2k views

Can there be any issue if I edit sources.list and jump between Ubuntu releases?

I found that sources.list in /etc/apt is the key file for all the repositories. I also found that every system and ubuntu release has its own sources.list, So here is where I was a little bit in an ...
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1 answer
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How to monitor CPU and GPU usage amongst users?

I have several users (with user accounts as per /etc/passwd) who SSH onto an Ubuntu machine that I manage. This is my system info: Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: ...
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Why is repositories not available in Ubuntu Studio 21.04 with KDE Plasma and cannot install packages?

It would not let me copy and paste and terminal error too long. I have not been able to add packages or update system in a very long time. Can you help me solve this?
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I can't find my sources and I'm unable to update (Ubuntu 20.04) [duplicate]

I was just trying to install ADB and it returned the following error message: W: Unable to read /etc/apt/apt.conf.d/ - DirectoryExists (2: No such file or directory) W: Unable to read /etc/apt/...
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2 answers
209 views

20.04 sudo apt update is showing the error: http://ddebs.ubuntu.com focal-security Release 404 Not Found

I was trying the steps in following link: https://wiki.ubuntu.com/Kernel/CrashdumpRecipe?action=show&redirect=KernelTeam%2FCrashdumpRecipe FYI: the commands I used: sudo apt-get install linux-...
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1 vote
1 answer
61 views

Re-enabling Third Party Entries in sources.list through SSH (remotely)

Wondering how you can do this? Upgraded from version 16(.?) to 20.04.3 LTS, and I got this message, I use it for a fair bit of port-forwarding and streaming and etc, using it as a media server, and I'...
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1 answer
248 views

Trouble with apt — "The list of sources could not be read" [duplicate]

I am using Ubuntu 20.04.3 LTS. ~ sudo apt update E: Conflicting values set for option Signed-By regarding source https://apt.kitware.com/ubuntu/ focal: /usr/share/keyrings/kitware-archive-keyring.gpg !...
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1 vote
0 answers
109 views

Updating node over apt causes npm downgrade

Every time I upgrade node.js (to 14.17.2 today) using apt, it somehow downgrades npm (e.g. from 7.19.1 to 6.14.13). I have to manually upgrade npm using npm install -g npm every time. I've been doing ...
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1 answer
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How to fix "Failed to fetch <sources.list links> 404 Not Found [IP: <some_ip>]"

my Ubuntu Server 20.04 is running on a Raspberry Pi 4. Now for some reason I get the Error message: Failed to fetch <sources.list links> 404 Not Found [IP: <some_ip>]. I've tried some ...
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0 votes
0 answers
118 views

How to remove a repo that isn't in /etc/apt/sources.list?

I want to remove a repo (from packages.cloud.google.com) but it isn't in /etc/apt/sources.list. (I haven't reproduced that file because the output is very long, but honestly, it isn't in it) But it ...
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0 votes
0 answers
22 views

E:Type 'cleadeb' is not known on line 1 in source list /etc/apt/sources.list, E:The list of sources could not be read [duplicate]

I am using Ubuntu 18.04. I tried installing Wine. Afterwards following error showed. E:Type 'cleadeb' is not known on line 1 in source list /etc/apt/sources.list, E:The list of sources could not be ...
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0 answers
100 views

How to get source version of containerd 1.3.3 via apt?

Package containerd in version 1.3.3 seems to be the most recent one for Ubuntu Bionic architecture amd64: $ apt show containerd Package: containerd Version: 1.3.3-0ubuntu1~18.04.4 Priority: ...
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1 vote
2 answers
10k views

How does sources.list for Hirsute Hippo (21.04) looks like?

Please can somebody post here the sources.list for Hirsute Hippo ? I know this depends on internet connection (WLAN or Cable?). This might be then different. Am interested in differences of data-...
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6 votes
1 answer
340 views

Replacing an APT-version of a package with source code version?

How can I replace a package installed via APT(or any other package managers) with the version from source without violating system? My problem is the same as this link, but I think the answer is not ...
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1 vote
1 answer
94 views

Why apt update sources fail sometimes when clock not synced?

This has been puzzling me for months and is an academic question now. I have a working fix, but want to understand the 'why'. Why is it that some sources in sources.list will sometimes fail to update ...
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1 vote
0 answers
126 views

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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1 vote
1 answer
132 views

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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0 votes
1 answer
102 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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1 answer
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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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3 votes
1 answer
200 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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1 vote
1 answer
194 views

why do i have three apt sources.list files? [duplicate]

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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0 votes
1 answer
806 views

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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0 votes
1 answer
538 views

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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0 votes
0 answers
97 views

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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0 votes
0 answers
24 views

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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0 votes
0 answers
53 views

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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0 votes
0 answers
22 views

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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1 vote
1 answer
153 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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4 votes
2 answers
931 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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0 votes
1 answer
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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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0 answers
633 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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1 vote
1 answer
3k 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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1 vote
1 answer
119 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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