Re: [OLPC-AU] Determining developer lock status

2011-03-10 Thread Sridhar Dhanapalan 
On 11 March 2011 06:02, Richard Smith  wrote:
>> I'm still awaiting feedback from the school (getting information out
>> of remote schools is often hard). I'm trying to ascertain whether
>> their CL1As are developer locked.
>
> According to the production info on your SKU (SKU 67) all your CL1As
> where shipped unlocked.

Thanks everyone. I've just confirmed with the school that they have
SKU 67, and that they are not developer locked.

*sigh of relief*

Sridhar
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Re: [OLPC-AU] Determining developer lock status

2011-03-10 Thread James Cameron 
On Thu, Mar 10, 2011 at 06:13:04PM +1100, Sridhar Dhanapalan wrote:
> I was out there a year ago to assist in the initial deployment, but at
> the time I was quite green and so didn't know what to look for. I do
> remember that we used NANDblaster clone an installation from one of
> our own CL1 XO-1s to the school's CL1As (turning each on while holding
> the four game keys). Would that be an indication that they are not
> locked?

Yes.

The only NANDblaster function that will work to a secure laptop is
nb-secure [1].  nb-clone (which is what you did) requires an non-secure
target laptop set.  Otherwise the security system would be bypassed.

On using the four game keys ...  This works for both secure and
non-secure systems. If the system is secure, the sender must be sending
a signed image; otherwise the receiver will stop before writing to it
NAND, saying "Placement spec bad signature!". [2]

1.
http://wiki.laptop.org/go/Nandblaster_for_XO-1#NANDblasting_a_Signed_NAND_Image_File

2.
http://wiki.laptop.org/go/Nandblaster_for_XO-1#..._with_Game_Buttons

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James Cameron
http://quozl.linux.org.au/
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Re: [OLPC-AU] Determining developer lock status

2011-03-10 Thread Richard Smith 
> I'm still awaiting feedback from the school (getting information out
> of remote schools is often hard). I'm trying to ascertain whether
> their CL1As are developer locked.

According to the production info on your SKU (SKU 67) all your CL1As
where shipped unlocked.

-- 
Richard A. Smith
One Laptop per Child
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Re: Determining developer lock status

2011-03-10 Thread Daniel Drake 
On 10 March 2011 04:06, Sridhar Dhanapalan  wrote:
> We find this to be a bit hit-and-miss - sometimes the prompt shows and
> sometimes it doesn't.

This can happen on some laptop models if you press esc too early. Wait
for the sound, then press it.

Daniel
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Re: [OLPC-AU] Determining developer lock status

2011-03-10 Thread Jerry Vonau 
On Thu, 2011-03-10 at 15:22 +1100, James Cameron wrote:
> On Thu, Mar 10, 2011 at 03:06:10PM +1100, Sridhar Dhanapalan wrote:
> > We find this to be a bit hit-and-miss - sometimes the prompt shows and
> > sometimes it doesn't. I normally turn on the XO while either holding
> > down the Esc key or tapping it repeatedly. Is there something more
> > reliable? I am trying to get a remote (non-technical) teacher to do
> > this, so it needs to be easy.
> 
> See http://wiki.laptop.org/go/Ok for my standard answer.
> 
> > I forgot to mention another thing - this is for XO-1.1s (XO-1s with an
> > XO-1.5 style trackpad).
> 
> We don't use the term XO-1.1, sorry.  Please don't introduce it.
> 
> The expert method (holding down the escape key while turning on the
> laptop) works fine for me when I test with this type of laptop, on
> Q2E45.  The expert method won't work in some cases though because it
> conflicts with the data stream between the firmware and the keyboard
> during the critical discovery phase.
> 

I like to hold down the check key when booting, then when prompted to
release, hit the escape key. I just do that out of habit now, like to
watch the scrolling text of the boot sequence. 

> With Q2E45, a USB keyboard can also be used to obtain the Ok prompt,
> but it takes an extra moment after the startup sound begins.
> 
> You might also attempt to boot from USB.  If it does not boot an
> unsigned image, then it is probably secure.
> 
> You might also check the manufacturing tags using the Terminal activity,
> but you did ask for simplest, and you didn't say anything initially
> about your hit-and-miss experience.
> 

>From a terminal 'ls /ofw/mfg-data' look for 'ww' for unlocked boxes, if
missing or 'wp' is present, then it's locked.

Jerry  


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Re: [OLPC-AU] Determining developer lock status

2011-03-09 Thread Sridhar Dhanapalan 
On 10 March 2011 15:22, James Cameron  wrote:
> On Thu, Mar 10, 2011 at 03:06:10PM +1100, Sridhar Dhanapalan wrote:
>> I forgot to mention another thing - this is for XO-1.1s (XO-1s with an
>> XO-1.5 style trackpad).
>
> We don't use the term XO-1.1, sorry.  Please don't introduce it.

Noted.

I'm still awaiting feedback from the school (getting information out
of remote schools is often hard). I'm trying to ascertain whether
their CL1As are developer locked. We want to install our own build,
along with deployment keys and firmware, via USB through an olpc.fth
script.

I was out there a year ago to assist in the initial deployment, but at
the time I was quite green and so didn't know what to look for. I do
remember that we used NANDblaster clone an installation from one of
our own CL1 XO-1s to the school's CL1As (turning each on while holding
the four game keys). Would that be an indication that they are not
locked?

Thanks,
Sridhar
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Re: [OLPC-AU] Determining developer lock status

2011-03-09 Thread James Cameron 
On Thu, Mar 10, 2011 at 03:06:10PM +1100, Sridhar Dhanapalan wrote:
> We find this to be a bit hit-and-miss - sometimes the prompt shows and
> sometimes it doesn't. I normally turn on the XO while either holding
> down the Esc key or tapping it repeatedly. Is there something more
> reliable? I am trying to get a remote (non-technical) teacher to do
> this, so it needs to be easy.

See http://wiki.laptop.org/go/Ok for my standard answer.

> I forgot to mention another thing - this is for XO-1.1s (XO-1s with an
> XO-1.5 style trackpad).

We don't use the term XO-1.1, sorry.  Please don't introduce it.

The expert method (holding down the escape key while turning on the
laptop) works fine for me when I test with this type of laptop, on
Q2E45.  The expert method won't work in some cases though because it
conflicts with the data stream between the firmware and the keyboard
during the critical discovery phase.

With Q2E45, a USB keyboard can also be used to obtain the Ok prompt,
but it takes an extra moment after the startup sound begins.

You might also attempt to boot from USB.  If it does not boot an
unsigned image, then it is probably secure.

You might also check the manufacturing tags using the Terminal activity,
but you did ask for simplest, and you didn't say anything initially
about your hit-and-miss experience.

-- 
James Cameron
http://quozl.linux.org.au/
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Re: Determining developer lock status

2011-03-09 Thread Sridhar Dhanapalan 
On 10 March 2011 14:49, Chris Ball  wrote:
> Hi,
>
> On Wed, Mar 09 2011, Sridhar Dhanapalan wrote:
>> What's the simplest way for a novice to tell if their XO is developer locked?
>
> Push escape while the startup sound is playing.  If you get an ok prompt,
> your XO is not developer locked.  If you don't, it is.

We find this to be a bit hit-and-miss - sometimes the prompt shows and
sometimes it doesn't. I normally turn on the XO while either holding
down the Esc key or tapping it repeatedly. Is there something more
reliable? I am trying to get a remote (non-technical) teacher to do
this, so it needs to be easy.

I forgot to mention another thing - this is for XO-1.1s (XO-1s with an
XO-1.5 style trackpad).
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Re: Determining developer lock status

2011-03-09 Thread Chris Ball 
Hi,

On Wed, Mar 09 2011, Sridhar Dhanapalan wrote:
> What's the simplest way for a novice to tell if their XO is developer locked?

Push escape while the startup sound is playing.  If you get an ok prompt,
your XO is not developer locked.  If you don't, it is.

-- 
Chris Ball  
One Laptop Per Child
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Determining developer lock status

2011-03-09 Thread Sridhar Dhanapalan 
What's the simplest way for a novice to tell if their XO is developer locked?

Thanks
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