How To Install mender-client on Debian 11
Introduction
In this tutorial we learn how to install mender-client
on Debian 11.
What is mender-client
mender-client is:
Mender: over-the-air updater for embedded Linux devices
Mender is an open source over-the-air (OTA) software updater for embedded Linux devices. Mender comprises a client running at the embedded device, as well as a server that manages deployments across many devices.
Embedded product teams often end up creating homegrown updaters at the last minute due to the need to fix bugs in field-deployed devices. However, the most important requirement for an embedded update process is robustness, for example loss of power at any time should not brick a device. This creates a challenge given the time constraints to develop and maintain a homegrown updater.
Mender aims to address this challenge with a robust and easy to use updater for embedded Linux devices, which is open source and available to anyone.
Robustness is ensured with atomic image-based deployments using a dual A/B rootfs partition layout. This makes it always possible to roll back to a working state, even when losing power at any time during the update process.
Ease of use is addressed with an intuitive UI, comprehensive documentation (https://docs.mender.io/), a meta layer for the Yocto Project (https://github.com/mendersoftware/meta-mender) for easy integration into existing environments, and high quality software (see the test coverage badge).
This repository contains the Mender client updater, which can be run in standalone mode (manually triggered through its command line interface) or managed mode (connected to the Mender server).
Mender not only provides the client-side updater, but also the backend and UI for managing deployments as open source. The Mender server is designed as a microservices architecture and comprises several repositories.
To start using Mender, we recommend that you begin with the Getting started section in the Mender documentation (https://docs.mender.io/).
In order to support rollback, the Mender client depends on integration with U-Boot and the partition layout. It is therefore most easily built as part of your Yocto Project image by using the meta layer for the Yocto Project (https://github.com/mendersoftware/meta-mender).
There are three methods to install mender-client
on Debian 11. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install mender-client Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install mender-client
using apt-get
by running the following command:
sudo apt-get -y install mender-client
Install mender-client Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install mender-client
using apt
by running the following command:
sudo apt -y install mender-client
Install mender-client 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 mender-client
using aptitude
by running the following command:
sudo aptitude -y install mender-client
How To Uninstall mender-client on Debian 11
To uninstall only the mender-client
package we can use the following command:
sudo apt-get remove mender-client
Uninstall mender-client And Its Dependencies
To uninstall mender-client
and its dependencies that are no longer needed by Debian 11, we can use the command below:
sudo apt-get -y autoremove mender-client
Remove mender-client Configurations and Data
To remove mender-client
configuration and data from Debian 11 we can use the following command:
sudo apt-get -y purge mender-client
Remove mender-client configuration, data, and all of its dependencies
We can use the following command to remove mender-client
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge mender-client
Dependencies
mender-client have the following dependencies:
References
Summary
In this tutorial we learn how to install mender-client
package on Debian 11 using different package management tools: apt
, apt-get
and aptitude
.