How To Install grub2 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install grub2 on Ubuntu 20.04.
What is grub2
grub2 is:
This is a dummy transitional package to handle GRUB 2 upgrades. It can be safely removed.
Package: grub2 Architecture: amd64 Version: 2.04-1ubuntu26 Multi-Arch: foreign Priority: extra Section: universe/admin Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: GRUB Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 16 Depends: grub-pc (= 2.04-1ubuntu26), grub-common (= 2.04-1ubuntu26) Filename: pool/universe/g/grub2/grub2_2.04-1ubuntu26_amd64.deb Size: 2572 MD5sum: 9376d089bc75c25ad924d8d7ca96ac5f SHA1: 900006b66069149c87557792a4919a5a00d6f7e4 SHA256: 11a62c311c0316e27c41194e7037deed15da0e5a88e0a45c2c8e074364cb8baa Homepage: https://www.gnu.org/software/grub/ Description-en: GRand Unified Bootloader, version 2 (dummy package) This is a dummy transitional package to handle GRUB 2 upgrades. It can be safely removed.
There are three methods to install grub2 on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install grub2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install grub2 using apt-get by running the following command:
sudo apt-get -y install grub2
Install grub2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install grub2 using apt by running the following command:
sudo apt -y install grub2
Install grub2 Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install grub2 using aptitude by running the following command:
sudo aptitude -y install grub2
How To Uninstall grub2 on Ubuntu 20.04
To uninstall only the grub2 package we can use the following command:
sudo apt-get remove grub2
Uninstall grub2 And Its Dependencies
To uninstall grub2 and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove grub2
Remove grub2 Configurations and Data
To remove grub2 configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge grub2
Remove grub2 configuration, data, and all of its dependencies
We can use the following command to remove grub2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge grub2
References
Summary
In this tutorial we learn how to install grub2 package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
