Detailed installation instructions from Windows - sebanc/brunch Wiki

Hello! Dear, Dearer, Dearest ladies and gentleman of curious world who want to try Chrome OS on their laptop running UEFI or BIOS Legacy 64 bit (X64) .It definitely runs a lot faster than windows even with low RAM.

NOTE:- Dual booting is not natively supported with BIOS/MBR devices. If you want to try Chrome OS via full disk install, then view For BIOS/MBR Devices

Find whether your PC supports UEFI or MBR/BIOS

So let's start


Download these files first

File 1. Linux Mint ISO file Select Cinnamon

File 2. Go to This Website and click on the three line button at top left corner and select table now find your recommended image and download it.


you can also find more useful information on Main Page

File 3. go to Releases and download the latest release.

File 4(Optional). Download and install Grub2Win If you want to dual boot with windows.

File 5(Only for BIOS/MBR devices) Download and extract mbr_support.tar.gz in your Chrome OS folder.(You can find it on homepage)

Screenshot from 2021-06-12 19-59-13

For UEFI devices.


  1. create a new folder "Chrome OS" and extract file no 3 there.

  2. extract file no. 2 in the same folder and rename it as recovery.bin.

  3. Now, folder Chrome OS should contain these files.

Screenshot from 2021-06-02 17-42-49

  1. create live USB of Linux mint. guide here

  2. after USB Device is created, copy "Chrome OS" folder in your it.

  3. Insert USB and restart your PC.

  4. Press your boot hot key list here

  5. Select your usb drive name.

  6. Take a hammer and press the enter key 🤣😂 Joke here

Ok jokes aside lets continue

  1. Make sure you are connected to internet. press Ctrl+Alt+t

  2. Paste the following code in terminal

sudo apt update

sudo apt install gparted pv cgpt figlet -y

  1. Open Gparted from menu.

  2. Select the drive in which you store your data [If you are having a single** c** drive then select it ]

  3. Now, Right click on it and select RESIZE/MOVE OPTION

  4. In the box labeled with Free space following (mib) type internal storage you want in chrome os in mb + 11264

GB to MB Converter

For example, I want 32 GB internal storage, I will type 44032 in Free space following (mib) box

NOTE:- now eat almonds and remember this number 🧠 Just Kidding, Write it somewhere.

  1. Click on Resize/Move button

  2. Now right click on the new unallocated space and select New option.

  3. Now in the file system box select ext4 and click on the add button.

  4. Click on the green tick button (Apply all operations)

Screenshot from 2021-06-02 18-40-10

  1. Select the newly created partition and right click.

  2. Click on information and copy its path. Let us say, the path is APPLE.

Screenshot from 2021-06-02 18-40-26

  1. Open terminal once again and run the following commands

mkdir -p ~/tmpmount

sudo mount APPLE ~/tmpmount

You can exit terminal.

  1. open files app and go to the file system folder

  2. select cdrom folder

  3. Here you will find Chrome OS folder

  4. right click on an empty area and select open in terminal

  5. then the most important step come here

type the command

sudo bash -src recovery.bin -dst ~/tmpmount/chromeos.img

DO NOT press Enter

  1. Now fetch the number from step15. use calculator and divide the number by 1024. This is your size. if it is in point then take the value without point for ex 20.6 ~ 20 50.1 ~ 50 61.7 ~ 61

  2. now give size to your chromeos.img by typing -s and size in gb

for ex -s 19 -s 49 -s 60

at the end your command should look like this

sudo bash -src recovery.bin -dst ~/tmpmount/chromeos.img -s 60

  1. this time seriously take an hammer and kill the ENTER button

  2. after completion you will get an message telling ChromeOS disk image created.

NOTE:- If you got "Not enough space" error, then just reduce the size by 1 and try again.

  1. Copy the text which appears after disk image creation (all the lines between stars).

  2. Create a new text file in Chrome OS folder and paste them.

Now It's time to say goodbye to linux. Restart your PC and log in to Windows.

Setup Grub2Win

  1. Install and open grub2win.

  2. It may asks you about EFI. Select YES only if you have UEFI.

  3. Follow the steps

  4. After it is opened click manage boot menu

Screenshot 2021-06-03 111750

  1. Add a new entry.

Screenshot 2021-06-03 111938

  1. Now, select custom code and enter the name"Chrome OS".

  2. Click on "edit custom code"

Screenshot 2021-06-03 112233

  1. Go to Chrome OS folder and open the text file we have saved from linux and copy the code.

  2. Come back to the notepad opened by grub2win and paste the code.

This one is my example Screenshot 2021-06-03 112432

  1. Save the file and exit notepad.

  2. Click "Apply" and "OK"

Note:- Never press cancel or exit by cross button after exiting notepad. If you do, changes will not be saved.

  1. Now, Restart your PC. You should see Grub2win.

  2. Select Chrome OS (with keyboard)(mouse doesn't work)

  3. Get some Pepsi and show your swag with chrome os.

2021_05_31 2_26 PM Office Lens.jpg

For BIOS/MBR devices

  1. Follow guide mentioned above upto step 11 in "Procedure" section of "For UEFI".

  2. Extract mbr_support.tar.gz in Chrome OS folder (overwriting files when requested).

  3. right click on an empty area and select open in terminal

  4. Enter this command

sudo bash -src recovery.bin -dst chromeos.img

  1. Done. Simply restart your pc and wait. Chrome OS will be ready to use.

Thanks, With love ❤️ Team brunch #HappyChromeOSjourney