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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

1762 questions
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How can nodemon be made to work with WSL 2?

Ever since updating from WSL 1 to WSL 2 with the Windows 10 April 2020 update (and thereafter updating Ubuntu 18 to Ubuntu 20), I have not been able to get nodemon to hot reload when there are file changes in the project's directory. When I make any…
Raj
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Authenticating 'focal.tar.gz' against 'focal.tar.gz.gpg' fails

When trying to perform a do-release-upgrade to upgrade from Ubuntu 18.04 to 20.04 I am getting the below error Checking for a new Ubuntu release Get:1 Upgrade tool signature [1,554 B] …
Hiren
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How to install python3-pip on ubuntu 20.04

I installed Ubuntu 20.04 on a PC. I then tried to get started and install pip for python3. However nothing seemed to work. This is what I have tried so far: sudo apt install python3-pip This is the error I get: Reading package lists...…
Biochem
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PHPMyAdmin: ERROR 1819 (HY000) - Password does not satisfy the current policy requirements

Firstly, please do not link me to any of these posts as I have already read them in their entirety and nothing helped: mysql cannot grant privilege to user, getting error: ERROR 1819 (HY000): Your password does not satisfy the current policy…
jacc_01
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3 answers

Running poetry fails with /usr/bin/env: ‘python’: No such file or directory

I just installed poetry with the following install script curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3 However, when I execute poetry it fails with the following error $ poetry /usr/bin/env:…
arshbot
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I just installed Ubuntu 20.04 LTS whats the default password?

This is a Raspberry pi 3 b+ running Ubuntu 20.04 LTS 32bit (I downloaded from here) and the screen says: Ubuntu 20.04 ubuntu tty1 ubuntu login: And I cant fine the username password. Also I am new to my Raspberry pi and linex.
Derek
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4 answers

#2006 - MySQL server has gone away on db import

So I have a new computer and I'm trying to set everything up for some projects. When I try to import some databases I'm getting this message after the import fails in phpmyadmin: Missing expression. (near "ON" at position 25) SET FOREIGN_KEY_CHECKS…
dee_tc
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6 answers

unable to install g++ and build-essentials in ubuntu 20.04

even after cleaning with apt-get clean it says there are broken packages. sudo dpkg -l | grep ^..r as mentioned in [1] returns nothing. $ sudo apt-get install build-essential Reading package lists... Done Building dependency tree Reading…
vanangamudi
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GPG invalid signature error while running apt update inside arm32v7/ubuntu:20.04 docker

I am trying to upgrade from ubuntu16 to ubuntu20 and for that I need to change image arm32v7/ubuntu:16.04 to arm32v7/ubuntu:20.04 in all our Dockerfiles [update required libraries after that], But while working on this task I found that there's some…
Vinay Verma
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How do I install lubicu66 on Ubuntu 20.04?

I am trying to install Ezra-project on Ubuntu 20.04. When I run the install it fails and says: dpkg: dependency problems prevent configuration of ezra-project: ezra-project depends on libicu66; however: Package libicu66 is not installed. I tried…
nicolejane33
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How to Install Homebrew on Windows WSL Ubuntu, and fix "zsh: brew command not found" error

Installation was a series of 5 simple steps: first, install homebrew itself from command in the home page: /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)" After that, following instructions in this…
Somjit
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Is it normal that the Angular-CLI is much slower in wsl2 than the default powershell?

In my recent projects I was working with Angular and the Angular-CLI and I noticed that basic CLI commands like ng g c, ng serve, ng build etc. take much more time in the wsl2 terminal (using ubuntu 20.04) than on the default powershell. Any…
Cowas
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fast-math cause undefined reference to `__pow_finite'

on ubuntu 20.04, when I use clang-8 or clang-9 (clang version 9.0.1-12) to compile a simple code containing reference to libm, it will fail with error "undefined reference to __pow_finite" #include int main() { double x=1, y=1; x =…
Wang
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7 answers

Package 'pgadmin4' has no installation candidate, for Ubuntu 20.04

After Upgrading to Ubuntu-20.04 I am unable to install pgadmin4. Also, any other version of pgadmin is not working. It is showing below error: Package pgadmin4 is not available, but is referred to by another package. This may mean that the package…
Shubham Soni
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1 answer

python-is-python-2 package... something new?

I have upgraded to Ubuntu 20.04 LTS from Ubuntu 20.04 (dev branch) and I have noticed that sudo apt install python installs python-is-python-2 instead of python2 (from Ubuntu 18.04) or python-minimal (from Ubuntu 20.04 dev). Is this something new?…
Aaron John Sabu
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