Re: Serial adapter

2011-11-03 Thread James Cameron
G'day Alan,

Thanks for your question.

You can find this adapter from Plan Ceibal, or from the OLPC
Association, contact mar...@laptop.org.  The same adapter works with
XO-1, XO-1.5 and XO-1.75.

I've not tested an alternative, but
http://wiki.laptop.org/go/Serial_adapters does provide the
specifications and pinout.

On Thu, Nov 03, 2011 at 08:35:37PM +, Alan Jhonn Aguiar Schwyn wrote:
> 
> Hello,
> 
> I'm from Uruguay...
> 
> Where can I find this adapter?
> 
> http://wiki.laptop.org/images/2/27/Serial_adapter_3.png
> 
> Only I find similars in e-Bay...
> 
> Which another adapter works with XO 1.0, 1.5 and 1.75 ??
> With free shipping to Uruguay :-)
> 
> Regards
> 
> Alan

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Re: 11.3.0 -> SD Card?

2011-11-03 Thread Kevin Gordon
If Mikus is around to help, his technique, utilizing symbolic links, yet
keeping the base install O/S on the internal is quite elegant.  It can
easily utilize swap too.

Cheers,

KG

On Thu, Nov 3, 2011 at 4:35 PM, Martin Langhoff
wrote:

> On Thu, Nov 3, 2011 at 3:41 PM, Carlos Nazareno 
> wrote:
> > Congratulations on the release guys!
>
> Thanks!
>
> > Q: is there a way to install 11.3.0 on an SD card for the XO-1 like
> > with alternate OSes on XOs instead of using the local flash storage?
>
>  - grab the tar.gz
>  - format your SD card as ext4
>  - untar to the root of the SD card
>
> no warranties expressed or implied. Might need additional minor
> tweaking to actually work. Probably gets profoundly borked in
> suspend/resume(!).
>
> If you trust the SD card FTL, pre-partition it to have a swap
> partition as well. Once up and running, configure linux to use it.
> With the limited RAM on XO-1, it's a great
>
> Moving some parts of the OS out might be saner, as Gonzalo suggests.
> Perhaps /usr, /home/, /var...  and that swap I mentioned.
>
> cheers,
>
>
> m
> --
>  martin.langh...@gmail.com
>  mar...@laptop.org -- Software Architect - OLPC
>  - ask interesting questions
>  - don't get distracted with shiny stuff  - working code first
>  - http://wiki.laptop.org/go/User:Martinlanghoff
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Re: 11.3.0 -> SD Card?

2011-11-03 Thread Martin Langhoff
On Thu, Nov 3, 2011 at 3:41 PM, Carlos Nazareno  wrote:
> Congratulations on the release guys!

Thanks!

> Q: is there a way to install 11.3.0 on an SD card for the XO-1 like
> with alternate OSes on XOs instead of using the local flash storage?

 - grab the tar.gz
 - format your SD card as ext4
 - untar to the root of the SD card

no warranties expressed or implied. Might need additional minor
tweaking to actually work. Probably gets profoundly borked in
suspend/resume(!).

If you trust the SD card FTL, pre-partition it to have a swap
partition as well. Once up and running, configure linux to use it.
With the limited RAM on XO-1, it's a great

Moving some parts of the OS out might be saner, as Gonzalo suggests.
Perhaps /usr, /home/, /var...  and that swap I mentioned.

cheers,


m
-- 
 martin.langh...@gmail.com
 mar...@laptop.org -- Software Architect - OLPC
 - ask interesting questions
 - don't get distracted with shiny stuff  - working code first
 - http://wiki.laptop.org/go/User:Martinlanghoff
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Serial adapter

2011-11-03 Thread Alan Jhonn Aguiar Schwyn


Hello,
I'm from Uruguay...
Where can I find this adapter?
http://wiki.laptop.org/images/2/27/Serial_adapter_3.png
Only I find similars in e-Bay...
Which another adapter works with XO 1.0, 1.5 and 1.75 ??With free shipping to 
Uruguay :-)
Regards
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Re: 11.3.0 -> SD Card?

2011-11-03 Thread Carlos Nazareno
On 11/4/11, Gonzalo Odiard  wrote:
> Why not install the image in the local flash and use the SD to save the
> content?
>
> Gonzalo

Well, doesn't also work when users install a number of activities and
applications if they switch to Gnome :-/

(like JDK which is now very large... Processing which can be taught to
older kids is about 80MB when unpacked (minus JRE))

Another reason is that if too many sectors on local flash become bad,
the ability to run from SD is a big plus - as we all know flash
storage has a read-write lifespan and web-centric behavior these days
tends to be cache-heavy on read-writes (browser cache, streaming
video, audio, etc)

As an aside, I'd like to give kudos again to you guys who keep making
this happen -- the advantage of the XO over something like Android is
that you can actually use it to build apps to run on itself (beyond
Javascript), and nowadays, I think it's what separates "devices" from
"computers" given that devices these days have insane amounts of
horsepower (and apps still manage to run like crap).

I think most average developers these days don't know how to optimize
stuff for performance (or even care for that matter) and have gotten
lazy from Moore's law. It's become more relevant today than ever now
that computing has started shifting more to mobile space and it's
becoming the norm, and lazy reliance on Moore's law is a vicious cycle
which has a horrific effect on the environment & sustainable computing
(e-waste, power crisis).

Regards,

-Naz


-- 
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11.3.0 -> SD Card?

2011-11-03 Thread Carlos Nazareno
Congratulations on the release guys!

Q: is there a way to install 11.3.0 on an SD card for the XO-1 like
with alternate OSes on XOs instead of using the local flash storage?

Unfortunately, what's left over from the 1GB is barely enough anymore
once people putting a lot of content on their machines like video.
With the price of SD cards being relatively more affordable in SE
Asia, it's an ideal solution.

Regards,

-Naz

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Re: New XO-1 testing firmware q2f04rd

2011-11-03 Thread Mikus Grinbergs
Running XO-1 (os883) with q2f04rd.  Appears to work well -- same 
behavior as with q2e48.

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New XO-1 testing firmware q2f04rd

2011-11-03 Thread Richard A. Smith
Thanks to some great work by Paul Fox the previous problems with q2f04rc 
should now be fixed.


Give this new version a try and see if it holds up:

http://dev.laptop.org/~rsmith/q2f04rd.rom

Thanks.

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One Laptop per Child
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