How to Dual-Boot ChromeOS with Linux and Windows? [With Easy Commands]

Dual-booting ChromeOS with Linux or Windows is one of the most powerful ways to unlock your PC’s full potential. Instead of relying on a single operating system, you can switch between environments based on your needs. ChromeOS offers a fast, lightweight, and secure experience, while Linux provides flexibility and control, and Windows ensures compatibility with mainstream applications and games.

Let’s learn how to prepare your system, install ChromeOS using the Brunch framework, and configure your system to boot into multiple operating systems safely. 

About ChromeOS

ChromeOS is an operating system developed by Google. It is based on Gentoo Linux and built on top of the open-source ChromiumOS project. Unlike ChromiumOS, ChromeOS includes proprietary Google services such as Google Chrome, Google Play Store, and built-in Android app support.

ChromeOS is known for its speed, simplicity, and cloud-first design. It is optimized for web-based tasks and offers seamless integration with Google services. While it is not ideal for gaming due to limited key mapping and GPU support, it excels in productivity and lightweight usage.

The key tool that makes ChromeOS installation possible on non-Chromebook devices is Brunch. This framework allows ChromeOS to run on standard PCs, even if they are not officially supported. Brunch acts as a compatibility layer, enabling features like booting, hardware support, and updates.

Requirements Before Start

General System Requirements

Before starting, ensure your system meets the following conditions. Your computer should be a 64-bit x86 system with UEFI boot support. Some legacy BIOS systems may work with patches, but UEFI is strongly recommended.

You must have administrator or root access to install and modify system files. ChromeOS installation requires at least 16 GB of free storage, though allocating more space improves performance.

Intel CPUs are widely supported, especially from newer generations. Older processors, such as Intel Core 2 Duo, are not supported. AMD Ryzen and Stoney Ridge processors have limited support. NVIDIA GPUs are generally not supported by ChromeOS, so they may not function properly.

Virtual machines and ARM-based systems are not supported for this setup.

Requirements for Linux Users

You must have a Linux distribution with the GRUB2 bootloader. Install required tools using the terminal.

Run the following commands to prepare your system:

For Arch-based systems, use:

These commands install the tools needed for extraction, partitioning, and installation.

Requirements for Windows Users

You need administrator access and must disable BitLocker. Install a Linux environment using Windows Subsystem for Linux.

Run this command in PowerShell:

wsl –install

Then open WSL and install the required tools:

sudo apt update && sudo apt -y install pv cgpt tar unzip

If errors occur, run:

Downloads

Download a compatible ChromeOS image based on your CPU type and generation. Choose between Stable, Beta, Dev, or Canary builds depending on your needs.

Also, download the Brunch framework, which enables ChromeOS to run on your PC. Place all downloaded files in a single folder for easier access later.

How to Dual-Boot ChromeOS with Linux and Windows?

To set up a multi-boot system, you need to install each OS in separate partitions. The recommended order is Windows first, Linux second, and ChromeOS last.

Windows overwrites bootloaders, so installing it first prevents issues. Linux installs GRUB, which manages multiple operating systems. ChromeOS is added last and integrated into the GRUB menu.

Once complete, you will see a boot menu at startup where you can select your desired OS.

How to Dual-Boot ChromeOS with Linux?

To dual-boot ChromeOS with Linux, install required packages, create a partition, extract ChromeOS and Brunch files, run the installation script, and update GRUB to include ChromeOS in the boot menu.

Step 1: Gain Root Access and Update System

Open Terminal using Ctrl Alt T and run:

sudo su

Then update your system:

sudo apt update && sudo apt upgrade

This ensures all packages are current.

Step 2: Create Working Directory

Navigate to Documents and create a folder:

Move your downloaded files into this folder.

Step 3: Extract Files

Extract Brunch:

tar zxvf brunch_filename.tar.gz

Extract ChromeOS image:

unzip chromeos_filename.bin.zip

Replace filenames with actual file names.

Step 4: Prepare Partition Using GParted

Open GParted and create or format a partition to ext4. Allocate at least 16 GB. Note the partition name, such as /dev/sda4.

Step 5: Create Mount Point

Create a mount directory:

mkdir -p ~/tmpmount

Mount the partition:

sudo mount /dev/sdX ~/tmpmount

Note: Replace sdX with your actual partition name.

Step 6: Run Installation Script

Run the ChromeOS installer:

sudo bash chromeos-install.sh -src chromeos_filename.bin -dst ~/tmpmount/chromeos.img -s 16000

Replace filename and size accordingly. Type yes when prompted.

Step 7: Configure GRUB

Copy the generated GRUB entry. Then run:

Paste the copied entry, save using Ctrl X, then Y, then Enter.

Update GRUB:

Step 8: Secure Boot Handling

Disable Secure Boot in BIOS or import key:

Step 9: Reboot and Test

Restart your system and verify ChromeOS appears in the boot menu.

How to Dual-Boot ChromeOS with Windows 11 or 10?

To dual-boot ChromeOS with Windows, install WSL, prepare the environment, extract files, run the installer script, and configure a boot manager like Grub2Win.

Step 1: Enable WSL

Open PowerShell and run:

wsl –install

Restart your PC and launch WSL.

Step 2: Install Required Packages

Run:

sudo apt update && sudo apt -y install pv cgpt tar unzip

Step 3: Navigate to Downloads

Access your Downloads folder:

cd /mnt/c/Users/YourUsername/Downloads

Step 4: Extract Files

Extract Brunch:

tar zxvf brunch_filename.tar.gz

Extract ChromeOS image:

unzip chromeos_filename.bin.zip

Step 5: Create Installation Directory

Create a folder for ChromeOS:

mkdir /mnt/c/Users/YourUsername/brunch

Step 6: Run Installer Script

Execute installation:

sudo bash chromeos-install.sh -src chromeos_filename.bin -dst /mnt/c/Users/YourUsername/brunch/chromeos.img -s 16000

Step 7: Install Boot Manager

Install Grub2Win and open it. Add a new boot entry and paste the GRUB configuration generated earlier.

Step 8: Disable Secure Boot

Turn off Secure Boot from BIOS to avoid partition locking issues.

Step 9: Restart and Verify

Reboot your PC and confirm that both Windows and ChromeOS appear in the boot menu.

Troubleshoot

If ChromeOS does not appear in the boot menu, modify GRUB settings.

Open configuration:

sudo gedit /etc/default/grub

Change:

Save and update GRUB:

Reboot to check if the menu appears.

Faqs

Can ChromeOS run on any PC?

No, compatibility depends on your hardware, especially CPU and GPU support.

Is Brunch safe to use?

Yes, it is widely used, but it is still an unofficial method, so proceed carefully.

Can I triple-boot ChromeOS, Linux, and Windows?

Yes, by installing each OS on separate partitions and managing them with a bootloader.

Why is ChromeOS not detecting my GPU?

ChromeOS has limited support for certain GPUs, especially NVIDIA.

Do I need Linux knowledge for this setup?

Basic knowledge helps, especially for troubleshooting and terminal commands.

Summary

Dual-booting ChromeOS with Linux and Windows gives you a flexible and powerful computing environment. ChromeOS delivers speed and simplicity, Linux provides control and customization, and Windows ensures compatibility with essential applications.

By following the steps I have mentioned above in this guide, you can safely install and configure all three operating systems on a single machine. 

Once set up, you will be able to switch between operating systems easily, making your PC more versatile than ever.