Chrome OS USB!

Many of you have been asking if it is possible to upgrade to Chrome OS on a USB drive without having to install it to a HDD/SSD in your computer.

The method described, although very common for certain Linux users is experimental and will NOT always work.

You will need:

1: A USB drive with your chosen Chromium OS install on it.

  • For this I HIGHLY recommend an 8GB or higher USB drive just to be on the safe side.
2: A live GRUB CD.
  • Any partition manager that supports STATE partitions should work.

Step 1:

Boot from your chosen Live CD partition manager.

Step 2:

Expand the STATE partition following the method of your chosen partition manager.

Step 3:

Boot your Chromium OS USB drive.

Step 4:

Follow the upgrade steps of running the script. 


Step 5:

Reboot once done and hope for the best!


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    1. As far as I know, there aren't any windows programs able to do this. You need a Linux based OS like Ubuntu but would be easier to use grub

    2. Thanks for the reply. I have managed to do it using a virtual box Ubuntu. Unfortunately the process of update failed, as nothing has changed after reboot.

  2. Hey, can you give more instructions? I have a linux VM but dont know how to expand the STATE partition.

    1. I used Ubuntu VM. Open Gparted, and expand the STATE partition (only one on the USB device). Make sure to connect the USB device to your VM.


About Me

Not much to say other than an IT Systems Analyst and Google Systems and Service vulnerability Analyst.

Previously a Windows 8/8.1 Developer and also Skype for Windows 8 Developer.

Also used to work as an Apple Systems Specialist, (the people who actually do the work, not the morons in store.)