Chromium OS

Chromium OS is an open-source project that aims to build an operating system that provides a fast, simple, and more secure computing experience for people who spend most of their time on the web.

All downloads are located at This will be updated daily where builds compile succcessfully..

Build Instructions for USB

  • Linux
    1. Use p7zip to extract the IMG file from the downloaded file.
    2. At the shell, run the following (where sdX is your USB stick and ChromeOS.img is the path to the IMG file you extracted):
      dd if=ChromeOS.img of=/dev/sdX bs=4M/
    3. Boot from USB stick
  • Windows
    1. Use 7zip to extract IMG file from the downloaded file.
    2. Use Win32 Image Writer, then select the IMG file and select the USB device from the menu.
    3. Click on “Write”.
    4. Boot from USB stick

All builds based on x86 and ARM generic board.

If you want to install to your hard drive, follow the instructions here and here. Heed the warnings noted in the links! When prompted for a password for the chronos user, use ‘password’ (without the quotes!).

Once installed, you can update from the Dev Server noted here.

Tested on Dell Studio 1555 with Intel 5100 AGN Wireless. Oh and VirtualBox of course. If you need instructions on how to use VirtualBox, go here and RTFM..

Thanks to The Chromium Projects


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1,328 thoughts on “Chromium OS”

  1. Hello Arnold

    Thx for a great work you are doing with chromium OS

    How would I ask you about adding extra hardware support? We are trying to use build on the HP 255 G4 laptops, but WiFi does not work (Broadcom 802.11b/g/n Wireless LAN ) system shows “WiFi is turned off”

        1. Just check latest special build again, I can logon on the second console and run lspci, it shows driver loaded for RTL8723be, but nothing on the main console other then same ‘map pfn…’ messages after chromium logo screen

  2. Is there a mp3 encoder available for Chromium OS?
    There’s one called MPD for Gentoo, but I don’t know if it works on this.
    By the way, nice job, actually I’m writing this using your OS.

  3. Hey there, using the Aug 10th special build, on my Samsung n150

    For some reason chromium shows wifi off, yet it shows wlan0. Tried insmoding and attempting but failing to do a dmesg | less to go through the output to see the issue. Wifi is enabled in the bios > always on.

    I’ve noticed zd1211 is no longer supported? (Not that I could get that to work anyway)

    Any ideas would be awesome.


  4. I’m trying to run Chromium OS using the vdi file, it freezes after I select the first option in grub.

    VIrtualBox settings:

    I/O APIC
    Hardware clock UTC
    1 GB RAM
    Nested paging
    128MB video memory

    Any ideas, greetings.

  5. Hi, I’ve noticed the daily build image size has increased by 200MB when extracted, I used to have a script to pull out the root partition IMG to update, but the offsets have changed. Is there any reason for this ? The special builds are still the same size and work fine. Seems to have happened around 31st July.

  6. Hello,

    My Linksys AE1200 is not working, is there any way around to fix this? Already tried a lot of builds, none worked. In Ubuntu I got the drivers working via ndiswrapper. Could you try including the drivers in the next build?

    Thanks in advance,
    Joël van Daalen

  7. I tried to boot Chromium OS on a kind of odd machine and got a kernel-level error message that my CPU type was not supported. I was using the latest x86 build; system is a custom-modified WYSE Cx0 thin client (!) — VIA Eden CPU 1GHz, VX855 chipset. Currently it has a 2gb stick of RAM and an 80gb 1.8″ Toshiba hard drive shoehorned inside.

    Some info about the Cx0 series, here (not my site!) –>

    Is there anything you can do to help?

    …er, I’ll try to watch this post for replies, but I’d prefer email if you can do that. Mine is in the proper field of the comment form :)

      1. …sorry, I’m not very good with compiling lingo. Are you saying that the VIA Eden series CPUs are unsupported by ChromiumOS?

  8. Hi Arnold,

    Firstly thanks for the great work you’re doing here.

    I’ve installed directly onto an old HP NC6320, at boot up it fails with atkbd serio1: probe failed as well as the same message for serio2, serio3 and serio4. Booting from USB appears to work fine?

    I assume this is something to do with the laptops internal HDD? Any advice?



  9. Ignore my last comment, ran through the installation again and it worked OK. Seems I hadn’t specified the source and destinations properly.

    Thanks again for the brilliant work

  10. Starting a new comment thread because I’m tired of waiting, and because (incremental) progress has been made.

    For your next daily or weekly build, can you compile in the driver at the link below? (Not a special build, please, they do something screwy to the video out — I get garble rather than text with either of the Aug10 models.) It should make my WYSE client work with ChromiumOS. Not 100% on that — but it’s my hunch.

    Right now it’s *almost* able to boot, but the UI process keeps getting an abort signal (ABRT) from Places Unknown and therefore it never finishes booting. I’m pretty sure that folding in the proper chipset driver will fix that… let’s find out :)

    So close it hurts.

    Linky —

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