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Hello I have Ubuntu 20.04 and I installed grub-customizer this 2 commands First:- sudo add-apt-repository ppa:danielrichter2007/grub-customizer and Second:- sudo apt install grub-customizer and after installing, it works perfectly but everytime when I type this command to do update via terminal the command sudo apt update gives this output :-

Ign:8 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu focal InRelease
Err:9 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu focal Release
  404  Not Found [IP: 91.189.95.85 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

I don't know what and why is this but want to solve it. Thankyou.

Piyush Mhatre
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1 Answers1

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I installed grub customizer from the instruction on the authors site here. https://launchpad.net/grub-customizer From that page it reads

How to install:

  • Ubuntu 19.10 or newer: Just run sudo apt install grub-customizer - exists in repository
N0rbert
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David DE
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