How To Install shim-unsigned on Debian 12
Introduction
In this tutorial we learn how to install shim-unsigned on Debian 12.
What is shim-unsigned
shim-unsigned is:
This package provides a minimalist boot loader which allows verifying signatures of other UEFI binaries against either the Secure Boot DB/DBX or against a built-in signature database. Its purpose is to allow a small, infrequently-changing binary to be signed by the UEFI CA, while allowing an OS distributor to revision their main bootloader independently of the CA.
There are three methods to install shim-unsigned on Debian 12. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install shim-unsigned Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install shim-unsigned using apt-get by running the following command:
sudo apt-get -y install shim-unsigned
Install shim-unsigned Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install shim-unsigned using apt by running the following command:
sudo apt -y install shim-unsigned
Install shim-unsigned 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install shim-unsigned using aptitude by running the following command:
sudo aptitude -y install shim-unsigned
How To Uninstall shim-unsigned on Debian 12
To uninstall only the shim-unsigned package we can use the following command:
sudo apt-get remove shim-unsigned
Uninstall shim-unsigned And Its Dependencies
To uninstall shim-unsigned and its dependencies that are no longer needed by Debian 12, we can use the command below:
sudo apt-get -y autoremove shim-unsigned
Remove shim-unsigned Configurations and Data
To remove shim-unsigned configuration and data from Debian 12 we can use the following command:
sudo apt-get -y purge shim-unsigned
Remove shim-unsigned configuration, data, and all of its dependencies
We can use the following command to remove shim-unsigned configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge shim-unsigned
Dependencies
shim-unsigned have the following dependencies:
References
Summary
In this tutorial we learn how to install shim-unsigned package on Debian 12 using different package management tools: apt, apt-get and aptitude.
