How To Install sicherboot on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
3 minutes • 438 words
Introduction
In this tutorial we learn how to install sicherboot on Ubuntu.
What is sicherboot
sicherboot is:
sicher*boot manages kernels and systemd-boot on a secure boot machine. It installs kernels and systemd-boot, generates signing keys to enroll in the machine, and signs the kernels and the bootloader with it.
Keys are generated in /etc/sicherboot/keys, readable only to root. The private keys are unencrypted in the default configuration, but that can be changed, see /etc/sicherboot/sicherboot.conf after installing.
This package diverts the /etc/kernel/postinst.d/dracut file and replace it with its own file that calls the diverted one before running sicherboot, as dracut does not support any form of hooks. dpkg is not entirely happy with that and asks you if you want to replace a “deleted” dracut conffile - answer yes.
There are three methods to install sicherboot on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install sicherboot Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install sicherboot using apt-get by running the following command:
sudo apt-get -y install sicherboot
Install sicherboot Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install sicherboot using apt by running the following command:
sudo apt -y install sicherboot
Install sicherboot 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 sicherboot using aptitude by running the following command:
sudo aptitude -y install sicherboot
How To Uninstall sicherboot on Ubuntu
To uninstall only the sicherboot package we can use the following command:
sudo apt-get remove sicherboot
Uninstall sicherboot And Its Dependencies
To uninstall sicherboot and its dependencies that are no longer needed by Ubuntu, we can use the command below:
sudo apt-get -y autoremove sicherboot
Remove sicherboot Configurations and Data
To remove sicherboot configuration and data from Ubuntu we can use the following command:
sudo apt-get -y purge sicherboot
Remove sicherboot configuration, data, and all of its dependencies
We can use the following command to remove sicherboot configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge sicherboot
Dependencies
sicherboot have the following dependencies:
References
Summary
In this tutorial we learn how to install sicherboot package on Ubuntu using different package management tools: apt, apt-get and aptitude.