Questions tagged [20.04]

Eighth LTS (Long Term Support) release of Ubuntu, code-named "Focal Fossa". Released on April 23, 2020. Will reach End of Standard Support (ESS) in April 2025. Only use this tag for version-specific questions.

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5 votes
2 answers
3k views

How to disable window edge tiling and enable window edge resistance in Ubuntu 20.04 Gnome?

I just installed an Ubuntu 20.04 LTS under FreeNAS/bhyve, and I can't disable the window maximising when hitting the upper edge of the screen. Window edge resistance also seems to be missing. I've ...
0 votes
1 answer
6k views

jenkins.service: Failed with result 'exit-code'

I'm trying to install Jenkins using this tutorial: https://phoenixnap.com/kb/install-jenkins-ubuntu but I get: root@server:~# sudo apt install jenkins Reading package lists... Done Building dependency ...
0 votes
1 answer
18 views

PC does not boot after installing nvidia driver on ubuntu 20.04 installed on encrypted disk

I just installed ubuntu 20.04 on a HP Z1 TO COMPLETE I enabled LUKS disk encryption in the ubuntu installer, and ubuntu works well, no problem to boot. After installing nvidia driver 470 then the PC ...
0 votes
0 answers
11 views

Patching of openssl for ubuntu 20.04 LTS [duplicate]

I have this testing environment using ubuntu version 20.04 LTS and I wanted to patch all my packages to the latest but found out that there is openssl 1.1.1x but I only can patch my openssl to version ...
29 votes
6 answers
12k views

Inhibit ESM messages at login

I would like to inhibit the generation of the following messages when I ssh into my machine Expanded Security Maintenance for Applications is not enabled. Enable ESM Apps to receive additional future ...
1 vote
2 answers
5k views

No Sound Input Devices Found on Ubuntu 20.04

I am very new to Linux and have been loving it so far. However, this is the first problem I have run into that I havent been able to trouble shoot online. When I go to my sound setting and try to find ...
3 votes
3 answers
1k views

How to open new instance of disk usage analyzer/baobab

This feels like a dumb question, but that's linux life for you. I just can't for the life of me figure out how to reliably open up a 2nd/multiple instances of disk usage analyzer/baobab. It seems like ...
1 vote
1 answer
106 views

Why do I have intermittent Wi-Fi disconnections in Ubuntu 20.04.6?

I'm using Ubuntu 20.04.6 and have been experiencing intermittent Wi-Fi disconnections during which my Wi-Fi icon turns into a question mark. I was able to get all the below information before my WIFI ...
3 votes
3 answers
17k views

Cannot enter GUI with "finished wait until snapd is fully seeded"

I just do apt update and apt upgrade and now I can't enter GUI mode after booting (Yes, I can enter tty1-6 via Ctrl+Alt+F2). The last uprade is about the kernel, I think. Note that this error may ...
0 votes
0 answers
16 views

New to apparmor- why are all downloaded appoarmor prifiles blanc?

background: I'm on Ubuntu 20.04.03 LTS and looking for "how to make my next installation more secure". I am interested in a topic that often relies on third party- and maybe older/not well ...
3 votes
1 answer
14k views

Can "gnome-network-displays" work on a Ubuntu 20.04.3 running on Oracle VM VirtualBox

I am trying to simulate casting my display to a miracast sink on linux. It seem like gnome-network-displays is a good option. I was having trouble getting it to work and was not sure if the fact I am ...
-1 votes
0 answers
26 views

Ubuntu logs out to empty screen

I've got several machines running Ubuntu 20.04, but on some of them when user logs out it goes to an empty purple screen with mouse cursor. Nothing can be done to log in again - reboot is needed, then ...
0 votes
2 answers
4k views

How to open the Graphical Console of a QEMU/KVM VM with virsh?

I'm teaching mysel KVM/QEMU and working with the virt-install and virsh commands. the one thing I can't figure out how to do is launch the graphical console from the virsh shell. is this possible? ...
6 votes
1 answer
1k views

darkbowser.canonical.com downloads lot of data in background

I'm running Ubuntu 20.04 and while working I saw that a lot of data was being consumed by my machine in the background. I ran iftop on my terminal and saw that a lot of data was being consumed by ...
1 vote
2 answers
609 views

Ubuntu 20.04 Autoinstall, Cloud-Init and Subiquity

I'm PXE booting the ISO and using the new Subiquity installer. I've got a working autoinstall setup/config with a working user-data file. What's not working is that I have an ansible: section that ...
0 votes
0 answers
15 views

Installation error with USB boot

I am very new to these areas. I am currently using ubuntu 23.10 on my desktop PC, but I also need ubuntu 20.04 to use some software. I want to dual boot with different versions of ubuntu, but the ...
1 vote
0 answers
30 views

How to fix error "Failed to start: Load/Save Screen Backlight Brightness of backlight:acpi_video0"

I'm a beginner Ubuntu user, using version 20.04. Ubuntu randomly black-screened on me today when I wasn't doing much, I just had Firefox and Discord open. I held the power button on my laptop down to ...
0 votes
0 answers
32 views

Upgrade of Ubuntu from 20.04 to 22.04 is blocked at pregenerating of the context [duplicate]

The upgrade of my laptop is blocked and no progress since at least 30 minutes. I am wondering if it could take more than 1 hour? What I can do if no progress after more to 2 hours? Thanks in advance
5 votes
1 answer
2k views

Can I use systemd-homed with 20.04?

I see that Ubuntu 20.04 Focal Fossa was released with Systemd 245, which supports systemd-homed. Has someone already tried using it? Preferably with LUKS? Is it setup during installation or what steps ...
0 votes
0 answers
22 views

How can I turn on Ubuntu wifi and bluetooth adapter?

My Ubuntu 20.04 had a wifi icon and a Bluetooth icon, but my children played with it and now these icons do not appear on start-up. I can turn them on, and when I turn it on it notifies me that I ...
1 vote
1 answer
8k views

How to change 'Show Applications' grid-icon in Ubuntu 20.04

I'd like to change the size and background color of this icon. I've tried editing parts of 'App Icons' and 'App Folders' in gnome-shell.css, without success so far. Should I be looking instead into ...
2 votes
1 answer
6k views

python3 is broken on Ubuntu 20.04 and I am unable to fix it

I somehow messed up the python3 environment in my Ubuntu 20.04 (upgraded from 19.10). I do not know how this exactly happened, but after rebooting I am not able to start the gnome-terminal anymore. ...
0 votes
0 answers
561 views

lm-sensors, what's the difference between "max" and "crit" temperature?

running sensors -j -u i get, among other things, { "coretemp-isa-0001":{ "Adapter": "ISA adapter", "Core 0":{ "temp2_input": ...
0 votes
1 answer
37 views

do-release-upgrade with a local apt repo

I have Ubuntu 20.04 systems at my workplace, and I want to do an do-relelase-upgrade but it will only use my local apt repo. I'm currently debating on upgrading 22.04 or jumping straight to 24.04. ...
56 votes
8 answers
313k views

WSL 2 Won't Run Ubuntu - Error 0x80370102

Today, I decided to upgrade from WSL 1 to WSL 2. On WSL 1, I had no issues getting both Kali Linux or Ubuntu to function on WSL 1. When upgrading to WSL 2, both Kali and Ubuntu failed to upgrade to ...
19 votes
12 answers
30k views

20.04 on external monitor (2560x1600) extremely slow

Fresh install on a Thinkpad W530 with Ubuntu 20.04. The installation had no problem, but after rebooting, everything is extremely slow. When I unplug the monitor (DisplayPort) and use the internal ...
0 votes
1 answer
291 views

Nvidia drivers: Errors were encountered while processing: libglx-mesa0:i386 [duplicate]

I am trying to install nvidia driver 460 on my Ubuntu 20.04 laptop, but I am getting the error below. Could anybody help me with troubleshooting it? I purged the drivers and tried different versions ...
0 votes
0 answers
14 views

Two instances of Netatalk after upgrade Ubuntu Server 18.04 to 20.04

I have Two instance after upgrade /usr/sbin/netatalk and /usr/local/sbin/netatalk For now second one is working after restoring from backup library /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2 but ...
-1 votes
1 answer
50 views

Ubuntu 22 and 23 gray colors are turned white

I was using ubuntu 23.10 and after a simple Ubuntu update, the colors for gray tones was broken and now all gray tones looks like white as you can see in this screen shot from https://imagecolorpicker....
0 votes
0 answers
22 views

Authentication Issues on Distribution Upgrade with Local Ubuntu Mirror Server

I have set up an Ubuntu local mirror server for the Focal(20.04) distribution using apt-mirror. Below are the configurations in /etc/apt/mirror.list: deb http://archive.ubuntu.com/ubuntu focal main ...
0 votes
1 answer
4k views

Can't shutdown ubuntu 20.04

Everything was working fine, but suddenly i can't shutdown my ubuntu system. I've tried manually and from terminal but there is no difference. I also tried to change the grub file : sudo gedit etc/...
1 vote
1 answer
4k views

controlling gpio on Ubuntu 20.04 64 bit arm Raspberry Pi

I wrote a program in C which uses the gpio pins on a Raspberry Pi. When I wrote the program, it ran fine on Ubuntu 18.04 armhf (32 bit). Now, however, on my Raspberry pi 4, running Ubuntu 20.04 arm64, ...
1 vote
0 answers
424 views

How to see and manage the connected devices on your Ubuntu hotspot?

I would like to check how many devices including mine are connected to the active hotspot, and perhaps manage the devices by kicking out unwanted devices that might be connected to my hotspot. I was ...
0 votes
1 answer
560 views

sudo apt-get upgrade "encouters error while processing" in basically everything [duplicate]

04.1 as a dual boot with GRUB. I was installing openFOAM and then I tried to upgrade packages using the usual sudo apt-get upgrade but I keep getting errors for standard packages. This is the output ...
0 votes
2 answers
80 views

Unable to grow vm disk using Cloud-init's growpart and resizefs

I have Ubuntu 20.04 virtual machine server with Cloud-init installed. I am trying to get the vm's disk to be automatically expanded with Cloud-init. The vm host is ESXi and data source is None as I ...
2 votes
3 answers
15k views

How to find out CUDA cores and information on command line for NVIDIA GPU

Simply put, I want to find out on the command line the CUDA compute capability as well as number and types of CUDA cores in NVIDIA my graphics card on Ubuntu 20.04. Any suggestions? I tried nvidia-smi ...
0 votes
0 answers
33 views

FIPS kernel panics with "Failed to reset DRBG" during boot

System panics during FIPS integrity check at boot. This is on new hardware, after a clean install of Ubuntu desktop 20.04.6. I've tried both the 'fips' and 'fips-updates' options, both after clean ...
8 votes
3 answers
13k views

The application Passwords and Keys has closed unexpectedly

About the installation: Ubuntu 20.04 — Clean installation with these options: Minimal installation Custom partitions Download updates while installing Install third-party software Wayland session I'...
-1 votes
1 answer
27 views

Unable to pair and bond 30 sensors with Ubuntu Server 20.04.6 LTS

We are developing a solution wherein we are trying to obtain data from between 30-35 sensors over BLE which will be paired and bonded with our device. The details of our devices(hardware wise) are as ...
1 vote
0 answers
116 views

Cannot Upgrade from 20.04 to 22.04 LTS

I am new to ubuntu, just wanted to upgrade dedicated server from 20.04 to 22.04. On first run of "do-release-upgrade" all seemed to go fine without errors, but after restart version still ...
11 votes
7 answers
29k views

WSL2 - VSCode's shell command `code` no longer working in Linux terminal

I am very new to Linux and WSL overall. I was able to use code . to open my current directory in VSCode, but after deleting something that I do not remember it just doesn't work anymore. I put in the ...
0 votes
1 answer
12k views

Installing real time patch for Ubuntu 20.04

I am trying to install Real time patch on ubuntu 20.04 I followed many steps and for each trial it took about 4 hours to complete. Unfortunately none of these trials worked (in the links below). I ...
0 votes
1 answer
4k views

Ubuntu 20.04 HP Pavilion installation problem

I've been trying to install Ubuntu on my computer for a long time. I have an HP Pavilion 15-cb005nt device with Windows 10 64-bit installed. I tried to install Ubuntu 18.04 and 19.10 on the same ...
0 votes
0 answers
269 views

Ubuntu 20.04 crashed and fails to boot "failed to start v4l2-relay daemon"

As above, the laptop froze and then rebooted but now this message flashes up for a split second and I'm left with a blinking cursor. I've tried searching for fixes but very little results even mention ...
-1 votes
0 answers
18 views

Can't register Ubuntu Server

I am trying to register my Ubuntu subscription, but it fails. $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.6 LTS Release: 20.04 Codename: ...
-1 votes
0 answers
15 views

Automatically shutdown after installing ubuntu on redmi book 15 pro

I have installed ubuntu 20 on on my Redmi book 15pro, but I dont know why its getting automatically shutdown everytime. Please help me.
3 votes
1 answer
6k views

Unable to install "Screenlets" in Ubuntu 20.04 LTS

What I did to try to install screenlets: sudo add-apt-repository ppa:screenlets/ppa sudo apt update sudo apt install screenlets screenlets-pack-all The Output: Reading package lists... Done ...
1 vote
1 answer
6k views

Ubuntu 20.04 KVM, netplan with bonding, vlan and bridges

I am preparing migration of an UBUNTU 16.04.7 server with 5 NIC's to 20.04. My testing server has 4 NIC's: 2 onboard and 2 as Intel Pro NIC. Configured in 00-installer-config.yaml. The first NIC is ...
-1 votes
0 answers
20 views

Issue with Sony WH-1000XM4 Bluetooth headphones on Ubuntu 20.04

I'm having a problem connecting my Sony WH-1000XM4 headphones to Ubuntu 20.04. When listening to music, it experiences brief interruptions every 5-7 seconds, which is quite annoying. I've noticed that ...
4 votes
2 answers
366 views

Problem with WSL-Ubuntu-20.04 on Windows: "Cannot connect to the Docker daemon" and "System has not been booted with systemd as init system (PID 1)."

I work on WSL on Windows. I downloaded Ubuntu 20.04 from the Microsoft Store. After running, I ran these commands: sudo apt update sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-...

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