How to Install Linux and Set Up Partitions

How to Install Linux and Set Up Partitions


Installing Linux for the first time may seem intimidating, but it is simpler than you think. 


Step 1 : Choose a Linux Distribution

Popular beginner-friendly choices : 

  • Ubuntu – Most recommended for first-time users

  • Linux Mint – Familiar Windows-like interface

  • Fedora – Modern and developer-focused

Download the ISO file from the official website of your chosen distribution.


Step 2 : Create a Bootable USB Drive

You’ll need :

  • A USB flash drive (at least 4GB)

  • ISO image of the Linux distro

  • Tool like Rufus (Windows), balenaEtcher (cross-platform), or UNetbootin

Steps (using Rufus) :

  1. Insert USB drive.

  2. Select the Linux ISO file.

  3. Use “GPT” for UEFI systems, “MBR” for legacy BIOS.

  4. Start writing.



Step 3 : Prepare Your System (BIOS/UEFI Settings)

Before booting into Linux installer :

  • Enter BIOS/UEFI (usually by pressing Del, F2, or F12 during startup)

  • Disable Secure Boot (for some Linux distros)

  • Enable USB boot

  • If dual-booting: Shrink Windows partition using Disk Management.



Step 4 : Boot into Linux Live Environment

  1. Insert the USB and reboot.

  2. Enter boot menu (e.g., press F12) and choose the USB drive.

  3. Select "Try Ubuntu" or equivalent to enter live mode.

You can test the OS before committing to installation.



Step 5 : Begin Installation and Configure Partitions

Click on “Install” in the live desktop and follow these key steps :


Partitioning Options :

1. Erase Disk and Install Linux :
⚠️ This deletes all data. Use only if you are not dual-booting.

2. Install Alongside Existing OS (Dual Boot) :
Linux automatically resizes partitions. Recommended for beginners.

3. Manual Partitioning (“Something Else”) :
Advanced users can create partitions manually. 

Typical setup : 

Mount Point File System Size Suggestion Purpose
/ ext4 20–30 GB Root (OS and software)
/home ext4 Remainder User files and personal data
swap swap 2–4 GB (or equal to RAM) Virtual memory support

/home as a separate partition makes future reinstallations easier.


Step 6 : Choose Time Zone, Keyboard, and User Info

  • Set your region and time zone.

  • Choose your keyboard layout.

  • Create a username and strong password.



Step 7: Install and Reboot

  • Wait for the installation to complete (typically 10–20 minutes).

  • Remove the USB drive when prompted.

  • Reboot into your new Linux system.



Conclusion

Installing Linux is easier than ever and opens the door to a world of powerful open-source software. 

Whether you are setting it up as a main OS or trying it alongside Windows, a proper understanding of partitioning and setup can ensure a smooth Linux experience.


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