4.1 Installing Ubuntu


There are many distributions available for GNU/Linux. We concentrate on Ubuntu, a derivative of Debian. Ubuntu has a focus on ease of setup and is widely deployed. It often replaces Windows, or is installed beside Windows (dual boot), or within Windows using the Windows Subsystem for Linux (WSL). It can also be installed on virtual machines locally or in the cloud. Canonical’s Ubuntu Installation Tutorial provides simple instructions. It’s good to start with the latest Ubuntu LTS (Long Term Supported) version and become familiar with the installation process by trying it out once or twice—it doesn’t hurt to practise!

Once you have Ubuntu installed you might like to install wajig to simplify the administration of a Ubuntu system. Wajig is available from the PyPI software repository. Installation of wajig will usually take less than 5 minutes and provides the command wajig. Start up a Terminal and follow these steps:

sudo apt --yes update; sudo apt --yes upgrade
sudo apt --yes install wajig
wajig update; wajig upgrade 
wajig install python3-pip
pip install wajig
wajig --version

If the wajig command is not found you may need to log out and log back in for the system to refresh the PATH to include ~/.local/bin (where pip installs commands). You could do the following, but it is not usually required:

echo 'PATH=~/.local/bin:$PATH' >> ~/.bashrc

If you will access the Ubuntu server in the cloud or even on your local network, then a remote desktop connection can be established using x2go as an alternative to a command line ssh connection. X2Go usually requires the mate desktop and the x2go server to be installed on the remote. This might take about 15 minutes:

wajig install ubuntu-mate-desktop x2goserver

For any questions asked during the install select the default option (e.g., gdm3 display manager).

In general, you may also like to install emacs, most, snapd, pwgen and brave:

wajig install emacs most snapd pwgen
sudo snap install brave

Some other useful initial setup includes setting the timezone if required:

sudo timedatectl set-timezone Australia/Canberra

To keep the system automatically updated add a regular task to the system crontab.

sudo crontab -e

Then add the following line to update the system automatically at 3am every day. Be sure to change kt to your own username, or even the whole path to another existent location.

0 3 * * * (wajig update; wajig distupgrade --yes) > /home/kt/cronlog/cronlog_`date +\%Y\%m\%d`.log 2>&1

Be sure to create the required sub-directory for the log files in your home directory:

mkdir ~/cronlog

Now, you probably want to add some users (see wajig’s adduser) or perhaps install a web server (see Section 95.1 for Apache or Section 95.3 for Caddy). Perhaps this is to be a Solid server in which case see Chapter 80.

Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0