Ubuntu - Environment
Ubuntu - Setting Up Your Environment
Section titled “Ubuntu - Setting Up Your Environment”Before installing Ubuntu, it’s crucial to ensure your hardware meets the requirements and to download the correct installation media.
System Requirements (for modern Ubuntu LTS, e.g., 22.04/24.04)
Section titled “System Requirements (for modern Ubuntu LTS, e.g., 22.04/24.04)”While Ubuntu can run on older hardware, for a comfortable experience with the default desktop, ensure your system meets these recommendations:
| Component | Recommended Specification |
|---|---|
| Processor | 2 GHz dual-core processor or better |
| Memory (RAM) | 4 GB RAM or more |
| Disk Space | 25 GB of free hard drive space (more is better for applications and data, consider 50GB+ for a primary OS) |
| Display | Screen resolution of 1024x768 or higher |
| Other requirements | A DVD drive or USB port for the installer media. Internet access is helpful for downloading updates and third-party software during installation. |
Downloading Ubuntu
Section titled “Downloading Ubuntu”Step 1: Visit the official Ubuntu download page: https://ubuntu.com/download/desktop
Step 2: Choose an Ubuntu Version. You’ll typically see options for the latest LTS (Long-Term Support) version and the newest interim release. For most users, especially beginners and those prioritizing stability, the LTS version is recommended. LTS releases are supported with security and maintenance updates for five years.
Step 3: Download the ISO image. Click the download button for your chosen version. This will download a .iso file, which is an image of the installation DVD.
Tip: You can verify the integrity of your downloaded ISO file using checksums (MD5 or SHA256) provided on the Ubuntu website to ensure it wasn’t corrupted during download.
Creating Bootable Media
Section titled “Creating Bootable Media”Once you have the ISO file, you need to create bootable media (either a USB drive or a DVD):
- USB Drive (Recommended): Use a tool like BalenaEtcher (cross-platform), Rufus (Windows), or Startup Disk Creator (if you’re already on Ubuntu) to write the ISO image to a USB drive (minimum 4GB, 8GB+ recommended). This process will erase all data on the USB drive.
- DVD: If your computer has a DVD burner, you can burn the ISO image to a blank DVD using built-in OS tools or third-party burning software.
Installing Ubuntu
Section titled “Installing Ubuntu”The following steps outline a typical Ubuntu Desktop installation. The installer interface (Ubiquity or its newer Flutter-based replacement) is user-friendly.
Step 1: Boot from the installation media. Insert your bootable USB drive or DVD and restart your computer. You may need to enter your computer’s BIOS/UEFI settings (usually by pressing F2, F10, F12, DEL, or ESC during startup) to change the boot order to prioritize the USB/DVD drive.
Step 2: Welcome screen. Once booted from the media, you’ll see a welcome screen. You’ll have two main options: ‘Try Ubuntu’ (to run a live session from the USB/DVD without installing) or ‘Install Ubuntu’. Choose ‘Install Ubuntu’ to proceed.
Step 3: Keyboard layout. Select your preferred keyboard layout and click ‘Continue’.
Step 4: Updates and other software. You’ll be presented with options:
- Installation type: ‘Normal installation’ (includes web browser, utilities, office software, games, and media players) or ‘Minimal installation’ (web browser and basic utilities). For most users, ‘Normal installation’ is fine.
- Other options:
- ‘Download updates while installing Ubuntu’: Saves time post-installation. Requires an internet connection.
- ‘Install third-party software for graphics and Wi-Fi hardware, and additional media formats’: Recommended for broader hardware compatibility and media playback. This may include proprietary drivers or codecs.
Make your selections and click ‘Continue’.
Step 5: Installation type (Disk Partitioning). This is a critical step.
- Erase disk and install Ubuntu: This is the simplest option for beginners if Ubuntu will be the only OS on the disk. It will wipe the entire selected hard drive. Warning: This will delete all existing data on the drive.
- Install Ubuntu alongside [Other OS]: If another OS (like Windows) is detected, this option may appear, allowing you to dual-boot. The installer will attempt to resize the existing partition.
- Something else: For advanced users who want to create or modify partitions manually (e.g., separate /home partition, LVM, encryption). Not recommended for beginners without research.
If you choose ‘Erase disk and install Ubuntu’, confirm the disk and click ‘Install Now’. You’ll be asked to confirm writing changes to the disk; click ‘Continue’.
Advanced Options (often under ‘Advanced features…’ on the ‘Erase disk’ screen):
- Use LVM (Logical Volume Management): Offers flexibility in managing partitions later (e.g., resizing, snapshots). More for advanced users.
- Encrypt the new Ubuntu installation for security (Full Disk Encryption): Encrypts your entire Ubuntu system. You’ll set a security key/password during this step. This adds security but can have a minor performance impact.
Step 6: Where are you? Select your geographical location by clicking on the map or typing your city. This sets your time zone. Click ‘Continue’.
Step 7: Who are you? Create your user account:
- Your name: Your full name.
- Your computer’s name: A hostname for your computer on the network (e.g.,
my-ubuntu-pc). - Pick a username: Your login name (lowercase, no spaces).
- Choose a password: Create a strong password.
- Confirm your password.
- Option to ‘Log in automatically’ or ‘Require my password to log in’. Requiring a password is more secure.
Fill in the details and click ‘Continue’.
Step 8: Installation progress. Ubuntu will now install on your system. This may take some time. A slideshow will display features of Ubuntu.
Step 9: Installation complete. Once finished, you’ll see a message ‘Installation Complete’. Click ‘Restart Now’. Remove the installation media (USB/DVD) when prompted.
Step 10: First boot. Your computer will restart into your new Ubuntu installation. Log in with the username and password you created.
The Ubuntu Desktop Environment (GNOME)
Section titled “The Ubuntu Desktop Environment (GNOME)”Modern Ubuntu uses the GNOME desktop environment by default. Here’s a quick overview:
- Activities Overview: Press the Super (Windows) key or click ‘Activities’ in the top-left corner. This shows open windows, workspaces, and a search bar to find applications, files, and settings.
- Dash (or Dock): A bar on the left side (by default) showing favorite and running applications.
- Top Bar: Contains ‘Activities’, the current application’s menu (sometimes), date/time, and system indicators (network, volume, battery, settings menu) on the right.
- Application Menu: For many applications, the menu (File, Edit, View, etc.) is integrated into the application’s window or the top bar when the application is focused.
- System Tray / Indicators Area: Located in the top-right corner, providing access to system settings, network connections, volume control, calendar, and session options (logout, shutdown).
You now have a fully functional Ubuntu system! Explore the applications and settings to familiarize yourself.