[Sugar-devel] Reflashing

2011-12-12 Thread Alan Jhonn Aguiar Schwyn


Hello,
When you reflash an XO, how the process run?
It skip a bad sectors? Or only copy all in all?
Regards!
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Re: [Sugar-devel] Reflashing

2011-12-12 Thread John Watlington

The reflashing process on all XO laptops automatically handles bad sectors.

On an XO-1, these are identified as red blocks on the screen when reflashing
and are automatically skipped.

On an XO-1.5 and XO-1.75, the bad sectors are identified and mapped out of
use by the controller in the SD/MMC card or device, and are never actually
reported to the user.

Regards,
wad

On Dec 12, 2011, at 8:02 AM, Alan Jhonn Aguiar Schwyn wrote:

 
 Hello,
 
 When you reflash an XO, how the process run?
 
 It skip a bad sectors? Or only copy all in all?
 
 Regards!
 
 Alan
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[Sugar-devel] Reflashing XO1.5 with newer OS

2010-09-29 Thread Harpreet Sareen
 Hi,

I reflashed my XO 1 today with the latest OS 852.img but on startup, it
shows the Invalid System Date message with  :(  smiley. Even before the
update, it used to show the message and the rest things are functioning
fine.


Invalid System Date
OLPC C2, 256 MiB memory installed S/N CSN74901B4F


How to rectfiy the problem?

Regards
Harpreet


On Sat, Sep 25, 2010 at 2:39 PM, Andrea Mangiatordi 
andrea.mangiato...@gmail.com wrote:

 Il 25/09/10 09.51, Harpreet Sareen ha scritto:

 Hi Andrea,

 So finally I am finished with my tests and have resumed the work for the
 activity.


 Hi Harpreet,
 I am glad to know you are working on the activity :)


 Actually, I have two XO’s. One of them is refurbished XO 1.0 and the
 other is the newer XO 1.5. I need to reflash the new XO 1.5 with the new
 OS but have been facing some problem. I downloaded the latest OS206.zd
 from http://build.laptop.org/10.1.1/. I put up both the files in the top
 level of a USB stick. Although, the image was found by the laptop, I am
 getting this message on startup. Below is the description of the
 problem, if you could suggest something?


 I have no experience with the XO 1.5, but:
 as the error messages is related to block sizes, I would first check the
 integrity of the image (using md5sum). If you have already done it and you
 are still experiencing problems, I would try inserting the usb stick when
 the machine is off and then booting it while pressing the four game
 controller keys on the right of the screen all together. This worked and
 allowed to bypass some problems on the XO 1.


 The second XO will allow me to create a mesh network between the two XO’s.


 Nice. You can also use SOAS on the devices in order to get exactly the same
 environment. You don't actually need to use a mesh network: the XOs
 automatically talk to each other when they are connected to the same
 access point. This structure:

 XO -- AP -- XO

 is the same as

 XO -mesh- XO

 and requires less efforts, both from you and from the cpus.


 I was collecting some material (Common objects, Holiday, Class,
 Workplace etc.) yesterday for the activity’s interface and have been
 playing around with the XO's to get familiar with their functioning. In
 due  course, the work would be concluded.


 Great. But let me know: have you contacted the uruguayan developers? I know
 they have a demo written in python. I know you prefer working with C#, but
 you should better ask them if there is something you can do to integrate
 their job, instead of replicating it.


 And, how's it going in Greece?


 I am going home today. Actually, I am writing this email from Athen's
 airport. The conference was not so good, the major advantage in coming here
 was the weight of the publications they produce. But I was assigned to a
 session where my work was totally unrelated to the other presented papers. I
 still enjoyed my stay in Corfu, which is a terrific place to go on holiday.

 Ciao!

 Andrea

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