Packt Publishing has just announced a great sale this month, all ebooks and videos for 5 USD $.
Their book and video catalogue consists of a wide range of topics, from Arduino to Unity, from webdesign to C++.
Have you got learning things on your new year resolutions? It`s time to start with that!
When updating Windows 10 to a major upgrade, you might end up with an aborted update.
To fix this, run DOS (cmd.exe) or powershell as administrator and run the following commands to repair your current Windows installation
sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
This installation guide describes how to install Linux Kernel 5.4.0 on Ubuntu Linux. This works with the latest version of Ubuntu Linux and most Ubuntu-based distributions including Kubuntu and Mint.
The included kernel files have been compiled using the generic Ubuntu configuration. A low latency version is also available in the directory of the linked files.
This post is an update of “Ubuntu Linux kernel 5.3 installation guide“
Which version do you need? The same as the current installed OS
In the terminal run:
uname -a
Quick selection guide:
The files can be found at kernel.ubuntu.com/~kernel-ppa/mainline/v5.4/
sudo update-grubThis short guide explains how to install Python version 3.8.0 on a Raspberry Pi running Raspbian.
This post is an update to How to install Python 3.7 on Raspberry Pi
First install the dependencies needed to build
sudo apt-get update
sudo apt-get install -y build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev
Compile (takes a while!)
wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tar.xz
tar xf Python-3.8.0.tar.xz
cd Python-3.8.0
./configure --prefix=/usr/local/opt/python-3.8.0
make -j 4
Install
sudo make altinstall
And remove the files
cd ..
sudo rm -r Python-3.8.0
rm Python-3.8.0.tar.xz
. ~/.bashrc
Make Python 3.8 the default version, make aliases
sudo update-alternatives --config python
And verify:
python -V
In my previous post (2014) HP Pavilion s7000 series slimline pc upgrade – i`ve updated an HP S7000 series slimline pc with a intel celeron 1037 motherboard. Now roughly 5 years later the machine is back for some smaller changes. Since the current value is getting lower and lower, I`m only making changes to make the system better for as little money as possible.
The price of SSDs has gone very low, eSATA is dead, the original WiFi card medieval (54 mbit/s) and the harddisk loud.
First step is replacing the 3.5 inch harddisk with a 2.5 inch SATA connected SSD and mounting a 3.5 to double 2.5 inch frame.
Another possibility is a 3.5 inch hybrid disk.
Second step is changing the 200 W flex ATX cpu by a PicoPSU. This reduces both noise and power consumption. Since the 1037U CPU has a TDP of 17 W I aim for a 80-100 W PSU.
The choice of 3 PicoPSU`s is possible:
Third step is changing the wifi card to an up-to-date wifi card. The housing has space for one PCI Express card, either a videocard (GPU) or this networkcard. The additional benefit of a brand new network card is the bluetooth 4 (or 5) support.