Intro-00

Learning Outcome

At the end of this lesson, you will be able to:

• load Debian Linux with no GUI on a computer

Lesson

• watch the video, Debian 12 "Net Install" Installation Walkthrough

  • see the video below ↓

• why Linux and Debian?

  • all computer scientists use Linux

  • Debian is the base of almost all Linux distributions: https://upload.wikimedia.org/wikipedia/commons/1/1b/Linux_Distribution_Timeline.svg 

Activity

• we will NOT use the graphical install, just choose to install

  • we do not need a mouse!

• options

  • install

  • English

    • Canada

    • American English keyboard

  • choose a wireless network

  • name your computer: Room-212-XX

  • Domain name: keep blank

  • root password: 

    • pick your own, but do not leave blank

    • ENSURE you remember it!

  • Full name of user:

    • ex: Mr Coxall

    • ex: mr-coxall

    • set password

      • ENSURE you remember it!

  • Time zone: Eastern

  • Guided - use the entire disk

  • pick the hard drive, not the USB!

  • All files in one partition

  • Finish partitioning and write changes to the disk

    • <Yes>

  • Canada: for package manager

    • deb.debian.org 

    • no proxy needed

  • select <No> for tracking packages downloaded

  • we will deselect everything so that we will have no desktop

    • also remove: standard system utilities

    • we will even deselect "SSH server"

      • we will load it ourselves (this one does not always work!)

    • we want a truly light build

  • then reboot!

Daily Assignment

• load Debian 12 with only terminal access on the provided computer

• then do the following "post-install" setup (sometimes you will need to  use "sudo" permissions)
  # add sudo access to a user
  # NOTE: you will need to be the root user to do this
  apt install sudo
  usermod -aG sudo username

-> switch out of root account!
    -> but why does it matter!

# update and upgrade the system
sudo apt update && upgrade -y

# install SSH server
sudo apt install openssh-server -y
sudo systemctl start ssh
sudo systemctl status ssh

# so it does not turn off when the lid is closed
sudo nano /etc/systemd/logind.conf
# uncomment and change to ...
HandleLidSwitch=ignore

# change the wifi settings
sudo nano /etc/network/interfaces
  address 172.22.52.XXX
  netmask 255.255.255.0
  gateway 172.22.52.1
  dns-nameservers 8.8.8.8 8.8.4.4

# to change terminal font size
#  select "Terminus ... 16x32"
sudo dpkg-reconfigure console-setup

Extra

• SSH into your new server from another computer!
  # check IP address
  hostname -I