Kubuntu installation guide

Configurare noua (How To)

Situatie

1. System Requirements

Minimum Requirements

Component Minimum
CPU Dual-core 64-bit
RAM 4 GB
Storage 25 GB
USB 8 GB installation media
GPU Integrated graphics supported

Recommended Requirements

Component Recommended
CPU Quad-core or better
RAM 8–16 GB
Storage SSD with 50+ GB free
GPU Modern Intel/AMD/NVIDIA

2. Downloading Kubuntu

Download the latest LTS release from:

Kubuntu Downloads

Recommended Version

Use the latest LTS (Long-Term Support) release unless you specifically need bleeding-edge packages.

Advantages of LTS:

  • More stable
  • Longer support cycle
  • Better driver compatibility
  • Recommended for workstations and beginners

3. Creating a Bootable USB

Windows Tools

Recommended:

Linux Tools

You can use:

  • dd
  • KDE ISO Image Writer
  • GNOME Disks
  • Ventoy

Using Rufus (Windows)

  1. Insert USB drive
  2. Open Rufus
  3. Select Kubuntu ISO
  4. Partition scheme:
    • UEFI systems → GPT
    • Legacy BIOS → MBR
  5. Click Start

4. BIOS/UEFI Configuration

Before installation:

Enter BIOS/UEFI

Common keys:

  • F2
  • DEL
  • F12
  • ESC

Recommended Settings

Enable:

  • UEFI boot mode
  • AHCI for SATA

Disable:

  • Fast Boot (temporarily)
  • Secure Boot (optional but helpful for NVIDIA)

Boot Priority

Set USB drive as first boot device.

5. Installing Kubuntu

Boot Into Live Environment

Select:

“Try or Install Kubuntu”

You can:

  • Test hardware first
  • Verify Wi-Fi/networking
  • Check display scaling

Start Installer

Double-click:

Install Kubuntu

Language & Keyboard

Choose:

  • Language
  • Keyboard layout
  • Time zone

Installation Type

Option A — Erase Disk

Best for dedicated Linux systems.

Option B — Dual Boot

Installs alongside Windows.

Option C — Manual Partitioning

Recommended for advanced users.

Recommended Partition Layout

Mount Point Size Filesystem
EFI 512 MB FAT32
/ 40–60 GB ext4
/home Remaining space ext4
swap 4–16 GB swap

User Configuration

Create:

  • Username
  • Password
  • Hostname

Recommended:

  • Enable automatic login only on trusted personal machines
  • Use strong passwords

Installation Process

The installer:

  • Copies system files
  • Installs bootloader
  • Detects operating systems
  • Configures locales

Typical installation time:

  • SSD: 10–20 minutes
  • HDD: 20–40 minutes

6. First Boot Configuration

After reboot:

Verify:

  • Internet connection
  • Display resolution
  • Audio
  • Bluetooth
  • Touchpad/keyboard

7. Updating the System

Open terminal (Ctrl + Alt + T):

sudo apt update
sudo apt full-upgrade -y

Then reboot:

sudo reboot

8. Open Driver Manager

Navigate:

System Settings → Driver Manager

NVIDIA Drivers

Recommended:

  • Proprietary NVIDIA drivers

Install via GUI or terminal:

sudo ubuntu-drivers autoinstall

Reboot afterward.

AMD Drivers

Modern AMD GPUs work well with open-source Mesa drivers already included.

Optional Mesa update:

sudo add-apt-repository ppa:kisak/kisak-mesa
sudo apt update
sudo apt upgrade

9. Essential Applications

Package Management

Kubuntu includes:

  • Discover GUI store
  • APT package manager

Recommended Software

Browsers

  • Firefox
  • Google Chrome
  • Brave

Communication

  • Discord
  • Telegram Desktop

Productivity

  • LibreOffice
  • OnlyOffice

Media

  • VLC media player
  • OBS Studio

Development

  • Visual Studio Code
  • Docker
  • Git

Install Common Packages

sudo apt install \
git curl wget htop neofetch \
build-essential vlc flatpak \
timeshift gufw

10. KDE Plasma Customization

System Settings

Main customization hub:

System Settings

Themes

Customize:

  • Global themes
  • Icons
  • Cursors
  • Fonts
  • Window decorations

Popular themes:

  • Breeze
  • Sweet
  • Fluent
  • Nordic

Widgets

Right-click desktop → Add Widgets

Useful widgets:

  • System monitor
  • Weather
  • Clipboard manager
  • Network speed monitor

Panels

You can:

  • Move taskbar
  • Add docks
  • Create macOS-style layouts
  • Add multiple panels

KDE Store

Install themes and widgets from:

KDE Store

11. Developer Environment Setup

Install Build Tools

sudo apt install build-essential cmake gcc g++

Git Configuration

git config --global user.name "Your Name"
git config --global user.email "you@example.com"

Install VS Code

Visual Studio Code Linux Download

Or:

sudo snap install code --classic

Install Docker

Docker Official Docs

Basic install:

sudo apt install docker.io
sudo systemctl enable docker
sudo systemctl start docker

Add user to docker group:

sudo usermod -aG docker $USER

Install Node.js

Recommended using NodeSource:

curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -
sudo apt install nodejs

12. Gaming Setup

Install Steam

sudo apt install steam

Or:

Steam Official Site

Proton Compatibility

Enable:

  • Steam Play
  • Proton Experimental

This allows many Windows games to run on Linux.

Lutris

Useful for:

  • Battle.net
  • Epic Games
  • Wine management

Lutris

13. Security Hardening

Enable Firewall

sudo ufw enable

Check status:

sudo ufw status

Install Fail2Ban

sudo apt install fail2ban

Automatic Security Updates

sudo apt install unattended-upgrades
sudo dpkg-reconfigure unattended-upgrades

14. Backup Strategy

Timeshift

Excellent for:

  • System snapshots
  • Recovery after failed updates

Launch:

sudo timeshift-gtk

User File Backups

Recommended:

  • External SSD/HDD
  • NAS
  • Cloud storage

15. Performance Optimization

Reduce Swappiness

Check current value:

cat /proc/sys/vm/swappiness

Temporarily set:

sudo sysctl vm.swappiness=10

Permanent setting:

sudo nano /etc/sysctl.conf

Add:

vm.swappiness=10

Enable TRIM for SSDs

sudo systemctl enable fstrim.timer

Verify:

systemctl status fstrim.timer

Monitor Resources

Useful tools:

  • htop
  • KDE System Monitor
  • iotop
  • nvtop

16. Troubleshooting

Broken Packages

sudo apt --fix-broken install

Dependency Issues

sudo dpkg --configure -a

Bootloader Repair

Install Boot Repair:

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt update
sudo apt install boot-repair

Launch:

boot-repair

Network Restart

sudo systemctl restart NetworkManager

17. Useful Commands

System Information

neofetch

Disk Usage

df -h

Memory Usage

free -h

Running Processes

htop

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