Firefly ROC-RK3566-PC: Another credit card-sized Linux PC with a Rockchip RK3566 processor

Rockchip’s RK3566 processor is a new 1.8 GHz ARM Cortex-A55 chip with Mali-G52 graphics and support for features including playback of 4K/60Hz video in H.264, H.265, and VP9 codecs. The first single-board computers (SBCs) powered by the chip are expected to ship in the coming months. Last week Pine64 revealed that a Raspberry Pi-sized SBC called the Quartz64 Model B was on the way. Now Firefly has introduced a similarly-sized RK3566 SBC called the ROC-RK3566-PC.

Let's Try Debian Unstable

You may have been familiar with the name Debian Unstable also known as Sid and may want to try it. As an Ubuntu user, this curiosity is nothing weird, as every release of Ubuntu itself is created from it, and many persons around you may talk about it pretty often. The secret is, there is no image file to download for it, so you cannot install it as an operating system. This is why I make this simple guide to invite you to try Debian Unstable on your computer. Let's go! [...] You must have a computer with Debian Stable installed. For example, you may install Debian in a virtual machine as it counts as one computer. At the time I write this, Stable is Debian 10. Next time, Stable will be Debian 11. If you do not have one yet, download Debian 10, and install it to your computer. Please be aware that doing this will require you large data transfer and also time. As an example,in an expe riment it requires ~2GB download, ~4GB storage, and no less than 4 hours to finish. [...] Finally, post-upgrade may introduce you to multiple packages need to be removed. This can be known by running simply $ sudo apt-get install without argument. It may say "some packages need to be removed by command line apt-get autoremove.

today's howtos

• HOWTO Make Mozilla Firefox Blazing Fast On Linux

  The Firefox web browser is, by default, much, much slower than it can be on Linux. There is, luckily, several ways to make it a whole lot faster by changing one or more configuration options that are not so easy to find or understand. Newly released Firefox 88 made it easier, though you can make older Firefox versions and Firefox LTS versions faster with some trickery. Here's the options you have and the performance they provide.

• How to Install Guider Linux Performance Analyzer on Ubuntu 20.04

  Monitoring the real-time state and behavior of the system and each of its components is crucial for any system administrator. Guider is an open-source performance analyzing tool for Linux operating systems. It is designed to measure the use of system resources, analyze it and improve the performance of the operating system. In this tutorial, I will show you how to install and use Guider on Ubuntu 20.04.

• How to Uninstall Chromium and Get Rid of It From Your Computer

  Chromium is the open-source web browser project used by Google to create Google Chrome. It has an interface and functionality similar to Chrome, allowing you to navigate the Internet and take advantage of privacy features. You can set it up on any operating system, including Windows and Mac. It’s also possible to install Chromium on Linux.

• How to Write a Shell Script in Ubuntu 20.04 LTS

  A shell script is a Linux-based script in which commands are written, and when a user executes the script, all those commands that are in the script are executed one after another. Think of it this way: You have a task you need to do that requires a certain number of commands to be written by the user, so it’s difficult to write and then execute those commands one at a time, that’s where the shell script comes in. To accomplish this task, simply write all of these commands into a single script and save that script file somewhere. Then, when the user needs to do a particular task, all they have to do is run the saved script and the task is done without having to write all the commands again one by one. The shell is an interpreter of the commands that the user writes.

• How to display GUI dialogs in bash script using Zenity

  We all know that Linux bash scripts are a real strength of Linux. Often we want to display a graphical user interface (GUI) in our scripts to make interaction with users easier. GUI makes any script more user-friendly and beautiful. For GTK in shell scripts, there are many options and tools available in Linux. In this article, we will show you how to use Zenity to display GUI dialogs in Bash scripts. Zenity is an open-source application for displaying simple GUI in shell scripts. It makes scripts more user-friendly by displaying GTK+ dialogs. Zenity is a handy command-line tool for modern shell scripting. Zenity is easy to use and a cross-platform application.

• Steven Pritchard: Dealing with old ssh implementations

  Over the last several releases, Fedora has removed support for old, broken crypto algorithms. Unfortunately, this makes it harder to deal with old devices or servers that can't easily be upgraded. For example, I have a switch that I can't connect to with the ssh on Fedora.