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Questions tagged [ubuntu-20.04]

Ubuntu 20.04 (Also codenamed Focal Fossa) is a Long Term Support (LTS) release of the Ubuntu operating system. QUESTIONS MUST BE PROGRAMMING RELATED.

The OS would be supported until 2025 by Canonical, it's manufacturer company.

Compared to the previous LTS version, the following notable changes happened:

  • Kernel upgrade from 4.15 to 5.4 .
  • ExFat is now supported.
  • No more 32 bit support.
  • Minor gnome upgrade (3.28 to 3.36)
  • System theme changed to Yaru, has three flavors: Light, Dark and Standard.
  • Notifications can now be muted in the Settings.
  • Dock can now be removed by the Extensions App.
  • New compression algorithms decrease installation time.
  • Booting better optimized, boots faster.
  • Wireguard is now supported, backported to kernel 5.4 .
  • More Snap App is supported.
  • Default is now Python3, although Python2 is still installable.
  • X11 fractional scaling.
  • Default Php version is now 7.4 (from 7.3).

References

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pip3 package installation fails with *ReadTimeoutError* regardless of default-timeout setting

The problem On a fresh and minimal Ubuntu 20.04 installation with ufw inactive: pip3 fails with HTTPSConnectionPool timeout. pip3 fails to install or update any package in a freshly installed OS. pip3 fails with the same error when installing local…
Zippy242
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Run docker gitlab with apache on ubuntu

I am trying to start gitlab running on Ubuntu 20.04.1 LTS. I have already an apache server running. sudo docker run --detach \ --hostname hostname.de \ --publish 443:443 --publish 80:80 --publish 22:22 \ --name gitlab \ --restart always \ --volume…
webGuy
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I use Geany 1.36 on ubuntu 20.04, but I do not find the debugger pluging, How can I debug?

I am coding using python3 and I have been trying to start debugging in Geany v 1.36, but it seems that the debugger pluging is not available for Ubuntu 20.04. I have installed the plugins sudo apt-get install geany-plugins I have restarted Geany,…
David S
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Why is there No more Kubernetes for Latest version of Ubuntu

I am trying to install Kubernetes on Ubuntu 20.04 but the latest release is for Ubuntu 16.04. I am following the official tutorial by kubernetes https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/ Is it discontinued for Ubuntu?
Waqar Afridi
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Allow access from outside localhost - Angular

I'm use ng serve --host 0.0.0.0 --disable-host-check but when in I try to run my angular app using the url: "http://server_static_ip:port" from another host it doesn't work. It went on timeout and the browser said: "ERR_CONNECTION_TIMED_OUT" How…
pippo
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'apt-get clean' returns error in Ubuntu 20.04 LST with WSL2

apt-get clean returns errors E: Could not open lock file /var/cache/apt/archives/lock - open (13: Permission denied) E: Unable to lock directory /var/cache/apt/archives/ E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission…
Kapilan P S
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Swift on Ubuntu 20.04- Need to add a path every time

I am simply trying to install swift on linux I have downloaded the files from swift.org, extracted .tar files and used export command to include the path after that when I use swift --version it correctly shows the version 5.3.3 but when I close the…
Umair Abbasi
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Tmux 3.0a how to past command line under Ubuntu 20.0.4

I tried to copy and paste command line in tmux3.0a, under Ubuntu 20.0.04. First, i highlight the text, but somehow the highlight disappear right away. Then a list show up, from which there is a "copy" for me to choose. Say i copy the directory like…
Johnson
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Command docker start -a do nothing, "Ubuntu 20.04.02 LTS"

i'm trying to run the start command in docker after creating a container. for example : $ docker create busybox echo hi there it gives me the id of that container like 4e59d0fe8584bb4dcaf44dbce100253b6767bf51546edc27f29f39f52ed57957 and when i try…
Elfeqy
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Why curl package in R is not connecting to the internet?

EDIT: Despite having confirmed that this error is ISP-related. I still do not understand why system curl works fine. (error in curl (R) occurs in any site) EDIT: Currently after a ISP visit. It works fine with cable, but wifi functioning is limited…
Ferroao
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How to fix ld: cannot find kernel.bin: No such file or directory

I'm trying to run an implementation of an operating system and I get this error when I run make on the terminal, I use ubuntu 20.04. This is the makefile: C_SOURCES = $(wildcard kernel/*.c drivers/*.c cpu/*.c libc/*.c) HEADERS = $(wildcard…
stealth22
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Call to 'pkg-config --libs-only-l Qt5Core Qt5Network Qt5Widgets returned exit status 1

Environment Information: OS: Ubuntu 20.04 Node JS version: v9.6.1 npm version: 5.6.0 Qt - >Qt 5.9.9 (Custom Installation with including the options below) Qt 5.9.9 -> Desktop gcc 64-bit Qt 5.9.9 -> Qt Network Authorization Qt 5.9.9 -> Qt Script…
Rando Shtishi
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cannot login into Rstudio server (open source) in Ubuntu 20.04

I installed Rstudio server in ubuntu server 20.04 LTS. The login page appears, but i am not able to login. I checked /etc/pam.d/other and /etc/pam.d/rstudio looks alright. Installed java as well. sudo restudio-server status ● rstudio-server.service…
sveer
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USER1: Initializing port 0 EAL: Error - exiting with code: 1 Cause: Cannot setup TX queue; port=0, err=Invalid argument (fastcapa)

i am trying to run fastcapa (metron project) on VM(ubuntu20.04) with dpdk and librdkafka installed and built. but when i run this commande i got this error: cmnd: sudo ./fastca …
refka ben marzouk
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docker isn't able to add local files to container

I have a directory structure that looks like this: ./7.3/web/Dockerfile ./etc/php/* So I'm in the . directory and do sudo docker build -t test 7.3/web and it builds the container but stops at ADD etc/php /usr/local/etc/php, giving me the following…
neubert
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