Mender blog

Showing posts tagged: engineering x

Using LVM to reduce dual rootfs footprint

26th Feb 2021

In this post we're going to explore using LVM to reduce the space needed by a dual rootfs setup. In a typical dual rootfs setup, the device needs to have two times the space needed by the rootfs partition, in order to have an inactive partition to stream a new update into. But in a typical patch update, not that much will have changed from what's already on the active partition. Perhaps a few libr...

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A quick dive into k3s and the Mender Update Module for Kubernetes

28th May 2020

All of you know about Kubernetes, the open-source container-orchestration system for automating application deployment, scaling, and management. Over time, it is becoming the de-facto standard to automate the deployment, scaling, and operations of container-based workloads in the cloud. The Cloud-Native Computing Foundation (CNCF) is responsible for the certification of the Kubernetes distribution...

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Over-the-air (OTA) software updates in embedded MCU based applications

27th May 2020

Many MCU based embedded systems are used in a variety of IoT applications which are typically deployed in the field on a large scale. These devices coupled with the rapid software development cycle, cause many systems to require support for over-the-air (OTA) updates. In this process, an OTA update replaces the software and firmware on the microcontroller (MCU) of the embedded system with a new so...

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Raspberry Pi support for robust system level updates

27th Apr 2020

The boards with binary distros are very popular in the development of IoT projects, such as Raspberry Pi. Depending on product goals, a large share of devices in early phases of product planning and prototyping could be based on Linux of one form or another due to their prevalence of low-cost with ready-made Linux distributions and their relatively quick access and setup. However, when it comes...

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Growing fresh veggies with Rpi and Mender

31st Mar 2020

Some time ago my wife and I decided to teach our kids how to grow plants. We both have experience as we were raised in small towns where it was common to own a piece of land where you could plant home-grown fresh veggies.

The upbringing of our kids is very different compared to ours, and we realized we never showed our kids how to grow our own veggies. We wanted them to learn and to understand t...

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