Entering developer mode on samsung arm chromebook

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Kurt Roeckx

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May 15, 2013, 1:46:50 PM5/15/13
to chromiu...@chromium.org
Hi,

According to http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook to enter developer mode I need to do:
- press ESC, refresh, power
- press control-D
- press control-D again

What I see:
- I get a black screen
- I get a screen saying:
  To turn OS verification OFF, press ENTER.
  Your system will be rebooted and local data will be cleared.

  To go back, press ESC.
- nothing happens when pressing control-D again

Pressing escape I get:
  Chrome OS is missing or damaged.
  Please insert a recovery USB stick or SD card.
  (note: the blue USB port will NOT work for recovery)


Are the instructions just wrong, and should I instead press enter (turn OS verification OFF)?


Kurt

Simon Arscott

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May 15, 2013, 1:50:29 PM5/15/13
to Kurt Roeckx, Chromium OS dev
On Wed, May 15, 2013 at 10:46 AM, Kurt Roeckx <q...@ping.be> wrote:
Hi,

According to http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook to enter developer mode I need to do:
- press ESC, refresh, power
- press control-D
- press control-D again

You actually need to press ENTER here.
 

What I see:
- I get a black screen
- I get a screen saying:
  To turn OS verification OFF, press ENTER.
  Your system will be rebooted and local data will be cleared.

  To go back, press ESC.
- nothing happens when pressing control-D again

You seem to have jumped a screen. I suspect it is due to pressing CTL+D again. You should see a screen that says "OS verification is off, press SPACE to enable)". 30s at this screen or pressing CTL+D should get you past it.
 

Pressing escape I get:
  Chrome OS is missing or damaged.
  Please insert a recovery USB stick or SD card.
  (note: the blue USB port will NOT work for recovery)


Are the instructions just wrong, and should I instead press enter (turn OS verification OFF)?


Kurt


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Kurt Roeckx

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May 15, 2013, 2:06:50 PM5/15/13
to chromiu...@chromium.org, Kurt Roeckx
On Wednesday, May 15, 2013 7:50:29 PM UTC+2, Simon Arscott wrote:
On Wed, May 15, 2013 at 10:46 AM, Kurt Roeckx <q...@ping.be> wrote:
Hi,

According to http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook to enter developer mode I need to do:
- press ESC, refresh, power
- press control-D
- press control-D again

You actually need to press ENTER here.

So I need to disable OS verification?

What I see:
- I get a black screen
- I get a screen saying:
  To turn OS verification OFF, press ENTER.
  Your system will be rebooted and local data will be cleared.

  To go back, press ESC.
- nothing happens when pressing control-D again

You seem to have jumped a screen. I suspect it is due to pressing CTL+D again. You should see a screen that says "OS verification is off, press SPACE to enable)". 30s at this screen or pressing CTL+D should get you past it.

OS verification is still ON, I don't need to enable it.

I'm also pretty sure that I get the screen about turning it OFF after just pressing control-D (once).

When I insert and SD card, I get different behaviour when I press the ESC button at the screen to turn it OFF.  It then says: "The device you inserted does not contain Chrome OS."  But since it actually doesn't, that would be normal.

Do I need to put Chrome OS on that SD card to be able to enter developer mode?


Kurt

Mike Frysinger

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May 15, 2013, 2:07:52 PM5/15/13
to Kurt Roeckx, chromium-os-dev
On Wed, May 15, 2013 at 2:06 PM, Kurt Roeckx <q...@ping.be> wrote:
> On Wednesday, May 15, 2013 7:50:29 PM UTC+2, Simon Arscott wrote:
>> On Wed, May 15, 2013 at 10:46 AM, Kurt Roeckx <q...@ping.be> wrote:
>>> According to
>>> http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook
>>> to enter developer mode I need to do:
>>> - press ESC, refresh, power
>>> - press control-D
>>> - press control-D again
>>
>> You actually need to press ENTER here.
>
> So I need to disable OS verification?

that is what dev mode does for you
-mike

Simon Arscott

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May 15, 2013, 2:10:44 PM5/15/13
to Kurt Roeckx, Chromium OS dev
On Wed, May 15, 2013 at 11:06 AM, Kurt Roeckx <q...@ping.be> wrote:
On Wednesday, May 15, 2013 7:50:29 PM UTC+2, Simon Arscott wrote:
On Wed, May 15, 2013 at 10:46 AM, Kurt Roeckx <q...@ping.be> wrote:
Hi,

According to http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook to enter developer mode I need to do:
- press ESC, refresh, power
- press control-D
- press control-D again

You actually need to press ENTER here.

So I need to disable OS verification?

No, the steps here are:

Press ESC+POWR+REFRESH
Press CTRL+D
Press ENTER

 

What I see:
- I get a black screen
- I get a screen saying:
  To turn OS verification OFF, press ENTER.
  Your system will be rebooted and local data will be cleared.

  To go back, press ESC.
- nothing happens when pressing control-D again

You seem to have jumped a screen. I suspect it is due to pressing CTL+D again. You should see a screen that says "OS verification is off, press SPACE to enable)". 30s at this screen or pressing CTL+D should get you past it.

OS verification is still ON, I don't need to enable it.

I'm also pretty sure that I get the screen about turning it OFF after just pressing control-D (once).

At that screen, you need to press ENTER.
 

When I insert and SD card, I get different behaviour when I press the ESC button at the screen to turn it OFF. 

If you press the ESC key, then verification (i.e. normal mode) is still on. To get to dev mode you have to turn off OS verificatino.
 
It then says: "The device you inserted does not contain Chrome OS."  But since it actually doesn't, that would be normal.

Do I need to put Chrome OS on that SD card to be able to enter developer mode?


Kurt

Kurt Roeckx

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May 15, 2013, 2:21:48 PM5/15/13
to chromiu...@chromium.org, Kurt Roeckx
On Wednesday, May 15, 2013 8:10:44 PM UTC+2, Simon Arscott wrote:
On Wed, May 15, 2013 at 11:06 AM, Kurt Roeckx <q...@ping.be> wrote:
On Wednesday, May 15, 2013 7:50:29 PM UTC+2, Simon Arscott wrote:
On Wed, May 15, 2013 at 10:46 AM, Kurt Roeckx <q...@ping.be> wrote:
Hi,

According to http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-arm-chromebook to enter developer mode I need to do:
- press ESC, refresh, power
- press control-D
- press control-D again

You actually need to press ENTER here.

So I need to disable OS verification?

No, the steps here are:

Press ESC+POWR+REFRESH
Press CTRL+D
Press ENTER

So the steps are:
- ESC+Refresh+power
- control-D
- Enter, which will result in you getting the screen that you need to press space to turn OS verification back ON.
- control-D

Can someone update the documentation?

Luigi Semenzato

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May 15, 2013, 2:24:48 PM5/15/13
to Kurt Roeckx, Chromium OS dev
The documentation says:

To enter Dev-mode you first invoke Recovery, and at the Recovery
screen press Ctrl-D (there's no prompt - you have to know to do it).
It will ask you to confirm, then reboot into dev-mode.

Note: "It will ask you to confirm". That's the ENTER part.

I agree that the reader of this document doesn't necessarily know that
"Developer Mode" == "Disable OS verification". But maybe they should.

Mike Frysinger

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May 15, 2013, 2:44:40 PM5/15/13
to Luigi Semenzato, Kurt Roeckx, Chromium OS dev
it can be turned back on later (verified w/dev mode), but yes, we should probably clarify in every device-specific page
-mike

Simon Janes

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Aug 13, 2013, 5:02:31 PM8/13/13
to chromiu...@chromium.org, Kurt Roeckx
i bought a Samsung arm chromebook off ebay and it has this message when i switch it on. Im not very techy and im looking for a way to turn off dev mode do you no how I can do this because im stuck on chrome 23

Daniel Erat

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Aug 13, 2013, 5:44:50 PM8/13/13
to Simon Janes, Chromium OS dev
The onscreen instructions when you turn the device on should explain how to exit developer mode.

If you get a message telling you that Chrome OS is missing or damaged, the following page explains how to use a USB drive to restore the operating system on the device: https://support.google.com/chromeos/answer/1080595?hl=en

This is a development mailing list. If you have more questions, please search on https://support.google.com/chromeos/?hl=en and use the forums at http://www.google.com/intl/en/chrome/devices/forum.html.
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