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Watchdog for ARM systems

April 26, 2020 by Igor Drobot Leave a Comment

Watchdog is responsible for monitoring tiny systems like raspberry PI, BeagleBone or any other system.
The main functionality of the watchdog is to check, if the system is still responding, lets say, to keep-alive messages.
Let’s assume, the system is stuck in a kernel panic, this will be automatically restarted by watchdog after reaching a grace time period. So a manual rebooting by unplugging the DC adapter is not required at all.

[Read more…]

Filed Under: Bash, Linux, Monitoring, Programming Tagged With: bash, Linux, Monitoring, Python, watchdog

Upgrade opensuse 15.0 to 15.1

July 17, 2019 by Igor Drobot 4 Comments

openSUSE Leap

openSUSE Leap 15.1 is available at the end of May 2019, and the upgrade process is simple.
Note, that it is always a good idea to:
– look into the upgrade release notes to make sure, you don’t run in any deprecations with your currently running software
– run a backup or a snapshot of the system, which will going to be upgraded.

[Read more…]

Filed Under: Linux Tagged With: Linux, openSUSE, security

Orange PI zero

December 9, 2018 by Igor Drobot 2 Comments

A new generation of mini pc, is the slogan of the of the manufacturer of the Orange PI zero board.
Indeed, its only the half of the size of a normal Raspberry PI board and the half of the weight.
Solid performance for that size and price – 7,60$.

I think its a really good choice for inexpensive portable linux system.
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Filed Under: Linux Tagged With: ARM, Linux, Orange PI, UART

Build RPM package

December 3, 2018 by Igor Drobot 1 Comment

RPM logo

To speed up some work processes with a single RPM package will bring more flexibility than deployment of single files/directories across different systems. Also a possibility to upgrade the installations without tracking of file versions over different systems.

This example will describe how to package a example script into a RPM package.
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Filed Under: Linux Tagged With: Automation, Linux, RPM

Cubietruck

November 28, 2018 by Igor Drobot Leave a Comment

cubietruck

Actually my Cubietruck is exactly four years old and still performing great.
Board production is still alive and buyable fo 69€.

This post is just a review of a great product, use cases, modifications and recommendations.
[Read more…]

Filed Under: Debian, DIY, Kernel, Linux Tagged With: ARM, Cubieboard, Cubieboard 3, Cubietruck, DIY, Linux, WIFI

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