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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724 thoughts on “Chromium OS”

  1. Hi! I am looking to see if it would be possible to bake in some sort of Radeon support for the old brazos E-series APU still supported in Catalyst or the open-source drivers. And a suggestion for some, have you guys tried using your android phones/phablet’s USB network tethering functions? might be a quick fix to get some of you online with the OS to try out.

  2. Just out of curiosity is there going to be a build with Nvidia drivers? nouveau which is supposed to be substitute for Nvidia drives is not wotking on any of my 3 machines. I had managed to run only a x86 20140525 build on integrated on one of the PC’s but that got pushed out. So no luck. on top of that I spent a couple of days trying to build an image myself, but that got me nowhere…
    So I am curious to know if that is in the pipeline?

      1. I managed to make my own image of ChromiumOS. Tried it on my Nvidia GPU’s. Played around with xorg.conf and both images mine and yours crash Xorg with an error like this:

        [drm] KMS not enabled
        No devices detected.

        Fatal server error:
        no screens found

        After googling around the info I have found says that this option should be enabled in kernel. The same goes for Nouveau website where they mention Nouveau DRM. So need to investigate it furtherer.

        1. BTW.

          I went trough the log again and found another fault

          /dev/fb0 no such file or directory

          couple of lines before it seems that the module manages to load but stopes when it calles the frame buffer, this causes Xorg to go through different probe method which results leads to an error in post above.

      1. I’m able to get to the console, but I’d like to get into the GUI. Is there a way to that using VirtualBox? The console doesn’t really help me at the moment.

          1. I cant get to console on vdi.. Then i did download img version, but i cant write to usb. Win32 Disk imager doesnt write it, (it say did it but usb is empty)

  3. Hi, I have installed the latest build 64bit image of Chromium OS on my Acer Vivobook S200E directly on the HD. From what I can see, everything is working like a charm, touch and everything. One thing I have noticed that is not working though is the Google drive files showing in the Files app. The build this is at the time of writing, version 41.0.2230.0 (wednesday 26 nov 2014). Is this someone that’s going to be fixed any time soon with any future updates? hope so. Thanks for the awesome builds. Very stable. So much faster than Windows when Chrome on windows 8.1 especially, is really really bogged down and takes ages for it to be responsive.

      1. I’ve upgraded to the full Chrome OS (pixel build) on it now. Everything works completely flawlessly.

        I’m now trying to get Chrome OS up and running onto my iMac. Chromium is installed, but the only thing in the way is the ATI Radoon graphics. Are you going to create a 64bit version of the multi driver image? And will I be able to upgrade that to the official chrome OS? Really want to achieve this have chrome is running on my mac along with OS X, and my other OS’. Seems that the only thing in the way is those graphics.

          1. Can confirm that Chromium OS works out of the box on 2012 Mac Mini i7 due to it having just the intergrated Intel HD 4000 graphics. Would work out of the box on my iMac if it wasn’t for the ATI Radoon graphics card, though I’m not sure what the intergrated graphics will be like if I manage to disable the card in Chromium and also I use an External secondary monitor.

  4. Thanks for all the hard work making available for everyone. I have downloaded the OS for x86. Its running fine from the USB. I want to install it on hard drive. The links you have given are fine but difficult to do. Is there any easy way or guide to make it?

    It also say that, installation will clean wipe the hard drive. Is that true only for installation partition or irrespective of partition, it will completely delete the whole hard drive?
    Thanks again.

    1. Pravin – it will completely wipe the entire hard drive and partition/format the hard drive into about 12 partitions for different uses.

      It sounds like you know the command to install it. If you don’t want to lose anything on the hard drive, don’t install it. If you’re ok with it reformatting that computer completely, then go ahead.

  5. hi arnold
    im using Camd64OS-20141201010102.img on my lenovo T430
    when im trying to enable mp3/mp4 by using library form unstable google-chrome (im grab that library from my fedora) , only mp3 file can be played, mp4 file cant playing only black screen i get
    im dig some log and found this line :] Error decoding stream
    im disabled Hardware acceleration video encode by add this (–disable-accelerated-video-decode) in /etc/chrome_dev.conf
    and now mp4 video was working
    i think this some problem with vaapi, my vainfo :
    ibva info: VA-API version 0.35.1
    libva info: va_getDriverName() returns 0
    libva info: Trying to open /usr/lib64/va/drivers/
    libva info: Found init function __vaDriverInit_0_35
    libva info: va_openDriver() returns 0
    vainfo: VA-API version: 0.35 (libva 1.3.1)
    vainfo: Driver version: Intel i965 driver for Intel(R) Ivybridge Mobile – 1.3.2
    vainfo: Supported profile and entrypoints
    VAProfileMPEG2Simple : VAEntrypointVLD
    VAProfileMPEG2Simple : VAEntrypointEncSlice
    VAProfileMPEG2Main : VAEntrypointVLD
    VAProfileMPEG2Main : VAEntrypointEncSlice
    VAProfileH264ConstrainedBaseline: VAEntrypointVLD
    VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
    VAProfileH264Main : VAEntrypointVLD
    VAProfileH264Main : VAEntrypointEncSlice
    VAProfileH264High : VAEntrypointVLD
    VAProfileH264High : VAEntrypointEncSlice
    VAProfileVC1Simple : VAEntrypointVLD
    VAProfileVC1Main : VAEntrypointVLD
    VAProfileVC1Advanced : VAEntrypointVLD
    VAProfileNone : VAEntrypointVideoProc
    VAProfileJPEGBaseline : VAEntrypointVLD

  6. Another newbie to Chromium, sorry. Downloaded Dec 2, 2014 build, installed to USB with Win32 Disk Imager. Doesn’t boot on the two machines I’ve tried, an HP dc5700 with a Core 2 Duo and a Dell Vostro with an i3. What sort of hardware should boot this successfully? or have I corrupted the image along the way somewhere, and should try again?

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