I got the error related to the Invalid package information. the essential package 'ubuntu-minimal' could not be located while upgrading Ubuntu 16.04 to the next version.
This blog post describes how to fix such an error on the Digital Ocean droplet.
Continue readingSome time ago, I wondered how to perform a stress test on my Raspberry Pi and see stats in real-time on the graphs. Most popular results in Google contained bash script with plain text output. Some of the scripts did not work because of a missed package for Raspberry. Thankfully for my friend, I found a tool named s-tui.
This blog post describes how easily perform a stress test on Raspberry Pi 4 with s-tui. By default, it works as a monitor. To run a stress test in s-tui, we need to install the stress package. In that case, it will show us graphs with CPU load and CPU temperature under the stress test.
Let’s get started.
Continue readingThis is a small cheat sheets for RabbitMQ. More detailed explanations and detailes examples can be found in the official tutorial and documentation. Links can be found at the bottom of this blog post.
Continue readingThis post describes some slice and maps features which may be opaue.
Continue readingThis post is a small cheatsheet for Methods and Interfaces in Go. Here I provide main features and describe what methods, interfaces, pointer receiver and value receiver are.
There are no detailed explanations or tricky examples about how to use them. For such content please see other resources.
At the end of the page, there is a small list of useful links to read
Continue readingThis post describes how to restore the admin’s user password for Grafana installed with sqlite.
For other SQL databases, connection to DB will look differently but SQL query may be used the same.
Continue reading