Questions tagged [apt]

Advanced Packaging Tool, the package manager for Debian-based distributions. It is also the most used tool for installing packages in Ubuntu. Questions about using any of the apt tools should use this tag.

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PPA mirrors ubuntu focal no longer has a Release file

When running apt update I'm suddenly getting the following error: E: The repository 'mirror://mirrors.ubuntu.com/mirrors.txt focal Release' no longer has a Release file. N: Updating from such a ...
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appimagelauncher segfault

Machine info: #Korafola:~$ hostnamectl Static hostname: Korafola Operating System: elementary OS 6.1 Jólnir Kernel: Linux 5.11.0-40-generic Architecture: x86-64 With respect to ...
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Appcenter is not showing all application on repos

I have installed 6.1 version.I realised that a lot of apps in repos not showing on appcenter. I have updated via apt but this issue is keeping on.
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Operating System Updates fail in AppCenter. Runs for 1 second, stops, and the updates are still pending. (grub related packages held back.)

sudo apt upgrade results in: "The following packages have been kept back: grub-common grub-pc grub-pc-bin grub2-common shim shim-signed": michael@elementaryOS-phy:/$ sudo apt upgrade Reading ...
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Slack Application seems to fail upon upgrading Elementary OS to version 6.1

Upon upgrading the Elementary OS from 6.0 Odin to 6.1, some applications fail to work as they used to previously. One of them is the Slack application. Whenever I try to start the Slack app, I tend to ...
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Unable to do any install, upgrade, ... using apt

Did complete reinstall of Elementary OS 6.0 and so far so good. After installing, upgrading, ... all the necessary packages i was pretty content with it. Since last week Apt is mentioning that it can'...
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Elementary os 6 can't sudo apt-get update or any other apt-get

It returns the following after $ sudo apt update or $ sudo apt-get update or etc... Err:12 http://ppa.launchpad.net/mpstark/elementary-tweaks-daily/ubuntu focal Release 404 Not Found [IP: 91.189....
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Cannot Update: Failed to update “Shortcuts”

I have Elementary OS 6 Odin installed on a laptop that can triple boot Windows, Elementary and Zorin OS. When I try to update it from the ApppCenter, I get this message (can't install any software too)...
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AppCenter not updating

I was hoping you could help me to the right direction. I have seen another post with the exact same issue though it was unanswered. AppCenter is showing the following components to be updated however ...
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816 views

Apt update fails with Error 401 Unauthorized

Issue: $ sudo apt upgrade -y Err:1 https://pkg.surfacelinux.com/debian release/main amd64 libwacom-surface amd64 1.12-2 401 Unauthorized [IP: 185.199.110.133 443] Err:2 https://pkg.surfacelinux....
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Elementary OS 6 not booting - drops into initramfs prompt

The issue has occurred after the accepted solution to https://unix.stackexchange.com/questions/675425/regular-update-broke-initramfs-on-elementary-os-6/675476#675476 This is how my screen looks when I ...
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Default Music app invisible by apt

Is it just me? Default music app is not listed by apt package manager. If you type apt list --installed | grep io.elementary.music nothing is found, but it is possible to launch app from terminal. I ...
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postgress still showing in apt update even after uninstall

I have uninstall postgress sql from my machine with command: sudo apt-get --purge remove postgresql sudo apt-get purge postgresql* sudo apt-get --purge remove postgresql postgresql-doc postgresql-...
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Workaround: How to fix GTK theme issue installed from APT

I've installed Elementary Odin wanting to give the Elementary OS dark mode a try. I really liked the dark theme but was upset that when I installed a GTK application from APT not Flatpak it gives you ...
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Can I run 'sudo apt autoremove' safley?

I'm just wondering if I can run sudo apt autoremove with the following packages installed. I have run it a number of times before on ubuntu and I am on a laptop and sometimes the GUI fails, sound card ...
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"Invalid key resource URL" When adding key for Elementary tweaks

Hello every one I recently intalled Elementary OS and now I get some issues when trying to add new repositorys. I wanted to install Elementary OS tweaks and I'm getting the following error Executing: /...
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279 views

Error when trying sudo apt-get update

I have the Hera OS 5.1. Now when I want to run sudo apt-get update I got the following errors. What can I do? Thanks in advance. Err:16 http://ppa.launchpad.net/djart/minidlna/ubuntu bionic Release ...
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Install R 3.6.3 on elementary OS: unmet dependencies

I couldn't find R or Rstudio on the built-in Elementary app store thingie, so I'm following instructions from the R project to install R in my new Elementary OS sandbox. sudo apt-get install r-base-...
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1 answer
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Installing 'Lightzone' as a linux n00b

I'm hoping someone can help me. I'm trying out elementary os as a desktop os and have so far been impressed by how much of my home computing use is covered straightaway. installing a few extra apps ...
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(SOLVED) apt-get is trying to uninstall everything I've ever installed!

This evening, I installed the latest stable release (version 10) of LLVM, Clang, etc.. I used these commands: sudo apt-get install libllvm-10-ocaml-dev libllvm10 llvm-10 llvm-10-dev llvm-10-doc llvm-...
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Updating Hera: Expected bionic but got trusty

When I check for updates on AppCenter, I get an error message "failed to fetch updates" W: Conflicting distribution: http://ppa.launchpad.net/deadsnakes/ppa/ubuntu bionic InRelease (expected bionic ...
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466 views

add-apt-repository not working

When I try running sudo add-apt-repository ppa:openrazer/stable it hangs. I am on Elementary OS 5.1 Hera. No other repositories work. I have install software-properties-common and its dependencies. If ...
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404 NOT FOUND adding tweaks

this is a similar issue to this question by me. I just got a fresh install of EOS 5.1, so I am starting from scratch. I am trying to get Elementary Tweaks so I can install a custom theme, but when I ...
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3 answers
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File manager deleted after update, now can't reinstall it (broken dependencies)

After a recent update and apt autoremove, the Elementary OS files app was somehow removed. I tried to reinstall it from the appstore, only for it to complain that tumbler and tumbler extras needed ...
2 votes
1 answer
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Can't install/remove, upgrade/update ANYTHING

I use OpenOffice, but got curious why so many Linux users and distributions are more into LibreOffice, so I downloaded it to check it out. When I tried to install it (a while back) I got an error ...
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404 Not Found error while running Apt and AppStore EOS Juno

when I open the app store in EOS Juno I am getting these errors: Failed to Fetch Updates This may have been caused by external, manually added software repositories or a corrupted sources file. E: ...
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No module named apt_pkg

Had this error while trying to install Lutris :sudo add-apt-repository ppa:lutris-team/lutris and then this came out : Traceback (most recent call last): File "/usr/bin/add-apt-repository", line ...
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Error with appcenter likely connected with python

I got this code when I open the appcenter. I recently dabbled in installing python stuff so might be connected to it. Also, when I ran sudo apt-update, this came out : Error Message
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1 answer
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Fresh Juno install can't update/install any packages

I've just completed a fresh install of 5.0 from the ISO on the website, but am unable to update/upgrade packages. Trying to run sudo apt update, or install anything from the AppCentre both result in ...
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Determine Missing Files

I am very new to Linux. My question is this : I have installed CodeBlocks IDE from the AppCenter, and tried to compile a simple "Hello World" program to no avail. After researching and looking at ...
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Error: could not find a distribution template for elementary/juno

I have a problem on my elementary os Juno. So when I want to add a ppa, it answers me : arthur@arthur:~$ sudo add-apt-repository ppa:mpstark/elementary-tweaks-daily Traceback (most recent call last): ...
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How to know which packages I have installed manually?

Where on the web is Loki's install manifest file? I want to compare it with the current build to see what I have installed? Or is there another way?
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Update error - signatures couldn't be verified because the public key is not available

I installed a few days ago(monday I think) elementary OS 5.0 Juno. Everything went really good, I'ma pretty experienced Linux user, I've been using ubuntu,elementary os and linux in general for quite ...
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Failed to fetch update

full details from image E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /...
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1 answer
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Native videos app can't play some type of videos

I have a problem with the native videos app: I'm not able to play specific videos in it (Screen is black) while I can play some other videos. Using VLC (Which somehow can play the target files with ...
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I accidentally deleted the file /lib/ld-lsb.so.3

I accidentally deleted the file /lib/ld-lsb.so.3. I wanted to know if it's a necessary file to guarantee the good functionality of the system (last version of Elementary OS, equivalent to bionic ...
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1 answer
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Packages have unmet dependencies error

whenever i try to install anything, i get that. Me and my dumb self also decided to uninstall appcenter, this is another problem im having, sudo apt-get install appcenter Reading package lists... ...
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1 answer
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Update error unexpected size

Input code : sudo apt update Output with error : Get:1 http://bd.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB] Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease ...
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1 answer
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Error when running `sudo apt-get update`

I've got the following error(s): Hit:1 http://ro.archive.ubuntu.com/ubuntu bionic InRelease Hit:2 http://ppa.launchpad.net/elementary-os/stable/ubuntu bionic InRelease ...
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Repository „cdrom://elementary OS 5.0 _Juno_ - Stable amd64 (20181016) bionic Release“ does not contain the Release file

How can i solve this ? E: Repository „cdrom://elementary OS 5.0 _Juno_ - Stable amd64 (20181016) bionic Release“ does not contain the Release file. W: An update from this repository can not be ...
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1 answer
231 views

Grub2 unknown filesystem after apt dist-upgrade

Yesterday I did a apt dist-upgrade on my Juno installation. This morning I found my PC unbootable. Since I couldn't find a fix for it, I started to reinstall my system. After a clean install (on a ...
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Getting an error on update

I am running eos juno on a razer blade late 2016 model laptop. I tried to do a sudo apt-get update && upgrade on terminal Err:13 http://in.archive.ubuntu.com/ubuntu bionic-updates/main i386 ...
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1 answer
609 views

Low disk space on file system

Low disk space on file system message on: Elementary: elementary OS Freya (64-bit) Built on "Ubuntu 14.04 LTS" File manager: Files 0.2.4 I want to create more disk space and running the command df-h ...
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1 answer
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Can't install elementary-tweaks on Juno

I'm trying to install elementary-tweaks on Juno but adding the ppa is causing an error. Here is my console output... Err:7 http://ppa.launchpad.net/philip.scott/elementary-tweaks/ubuntu bionic ...
2 votes
2 answers
1k views

Accidentally created a bad source list- How to delete it?

I'm new to Linux and was attempting to install the Brave Browser using the instructions on the website, listed below: curl -s https://brave-browser-apt-release.s3.brave.com/brave-core.asc | sudo apt-...
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2 answers
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Brave Browser and repo update

I have tried to add the repo for Brave Browser. It adds fine, but then I get this problem with it being insecure. How can I add this repo to an exceptions list? I understand apt is going to phase out ...
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Error on launching the "App Store"

I get the following error when I launch the AppCentre. It reads E: Repository 'http://dl.google.com/linux/chrome/deb stable Release' changed its 'Origin' value from 'Google, Inc.' to 'Google LLC' I ...
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Apt repo add with human error, empty AppCenter

I installed Elementary OS since 2 weeks now, and I wanted to install Syncthing, what I did... But I went to this page and due to my window width, I typed 2 commands instead of one : echo "deb ...
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861 views

Fresh installation - apt-get update fails with 403 forbidden

I am quite new to Linux. After I did fresh install from iso and update system components from AppCenter(appcenter) I wanted to install net-tools using apt-get. firstly I did sudo apt-get update but ...
1 vote
1 answer
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Repository problems, on a new installed Juno

After a brand new installation of Elementaty Juno (I come from Linux Mint) I got errors like this one, when updating the system: El repositorio «http://packages.elementary.io/appcenter juno Release» ...