the device you inserted does not contain Chrome OS

[rongrong ju]

Chromebook Model (Example: Chromebook Pixel, HP Chromebook 11, etc.): 
Acer Chromebook 11   CB3-111   

Issue description: 

Hi  I  have build  chromiumOS  (--board=x86-generic) and  burn it to kingston udisk which can be used to  boot frome usb on  normal notebook 
but when I  try boot from usb on CB3-111 ,error message show on screen   : the device you inserted does not contain Chrome OS

[rongrong ju]

[Mike Frysinger]

is the device in dev mode ?  you can't boot custom images unless you put it into dev mode first.

-mike

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[Richard Barnette]

Looking at the second screen shot you posted, It looks like you
booted in recovery mode. Recovery mode requires a Google-signed
recovery image, even in dev mode.

It looks like your system _is_ properly set up to boot from USB in
dev mode. The proper procedure to do that should be this:
* Power off
* Insert your USB stick
* Power on normally (just push the power button)
* At the dev mode screen, type ctrl+U

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--jrb

[rongrong ju]

Thanks for your repley  

1  But  after follow your advice  :

    after I press ctrl+U 

    screen will flick to black and  go  back   to OS verificatin is OFF  screen  

2 my device  model  is  GNAWTY  C2Q E55-A58 

is this device can not fit for board=x86-generic configration ? 

[Mike Frysinger]

you really should use amd64-generic.  the x86-generic build is for old 32bit systems.

-mike

[rongrong ju]

I  cannot build  amd64-generic image due to chinese net, and  according to  developguide , board configure is not  important .

issue  still on  

[Mike Frysinger]

sorry, i don't understand that ... if you were able to download & build x86-generic, why not amd64-generic ?  it's the same source tree.

i don't know what portion of the guide you're referencing ... the board does matter.  x86-generic is 32bit and amd64-generic is 64bit.  if you're building for an actual board (which you are as you said "gnawty"), then you should use that instead.  that'll include the settings/firmware/etc... specifically for that device.

-mike