Re: [Server-devel] [XSCE] Re: [UKids] Raspberri Pi/clone(s) most ruggedizable for OLPC fieldwork?

2016-04-02 Thread Tim Moody 
For xsce I'd start with f22.  You can look at the rpi images on 
xsce.org/downloads


Sent from my Samsung Galaxy smartphone.

 Original message 
From: Alex Perez  Date: 
4/2/2016  2:12 PM  (GMT-05:00) To: Adam Holt  
Cc: server-devel , 
xsce-de...@googlegroups.com Subject: [XSCE] Re: [UKids] Raspberri 
Pi/clone(s) most ruggedizable for OLPC fieldwork? 


> On Feb 6, 2016, at 1:10 PM, Adam Holt  wrote:
>
> Will the $15 http://pine64.com  (which just raised $1.7M) 
> become genuinely productizable for truly hassle-free field use with 128GB 
> MicroSD cards by late 2016?  On the bright side, it accommodates 128GB 
> maximum, which is exactly what we need on the high end in 2016.

Looping back on this...

My PINE64 arrived in the mail today. Mine is the 2GB RAM variant, with gigabit 
ethernet, but no bluetooth or Wi-Fi (which is an add-in module)

 I actually have a couple of 200GB microSD cards that I just acquired, and I’ll 
be putting it through its paces. The SanDisk SDSDQUAN-200G-G4A retails for 
$249, but the actual street prices are $80 (on Amazon)

I suspect it will work fine in the PINE64. Does anyone here have any 
recommendations for putting XSCE through its paces, or otherwise stress-testing 
the install, besides normal benchmarking of static HTTP page load performance.

Regards,
Alex Perez

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[Server-devel] Alas, I'm giving up on Access Point function for XO1.5

2016-04-02 Thread George Hunt 
The recent SD cards are so cheap, and wikipedia in various languages is
such a good replacement for the encyclopedia I devoured as a kid, I spent a
few weeks on this project.

The results were mixed, but just not good enough. The XO1.5 can act as a
gateway for a few minutes, or  a few hours (with apparently random delays
to the point of failure). But eventually, the libertas thinfirm driver, or
firmware, gets to be unresponsive, and only a reboot will correct the
situation.

*History*
The libertas AP function was developed by OLPC in the 2010 timeframe (and
used successfully by openfirmware for flashing many XO at a time). I'm not
clear whether "thinfirm" firmware was generated by marvel, or modfied by
outside consultant, cozybit under nondisclosure agreement., This firmware
may have removed some function, but added AP capability. The driver was
modified, in order to add the sdio interface (the OLPC motherboard uses
SDIO interface rather than the pre-existing usb driver interface). The
thinfirm driver (with USB interface) has been upstreamed, and accepted into
the kernel.  But the SDIO interface modifications to the driver have not.
More recently discovered sdio code has not been tried (2) -- or maybe it's
the same in a different package.

Olpc documentation of the AP function existed, and I tried to follow the
instructions (1)(4)(7)

Jerry Vonau found a patch for sdio interface to thinfirm, which was the one
I tested (5). If I were to continue, I'd probably try the patch at (2)
since it's more recent.

There are references to setting the libertas_tf driver into debug mode,
which I did not pursue, since I'd need to learn a lot more about wireless
protocols, to make use of the debugging information.(6) But that's probably
what I would need to do if I continued.


*Random observation:*
   if a wifi client is connected to an XO1.5 acting as AP, and both the
client and the server are set to ping one another, the client ping delays
are constant. but the server delays are bi-modal, either 5ms or 230ms.

   1. http://wiki.laptop.org/go/Thinfirm_1.5
   2. http://www.sleepyrobot.com/?p=160 --
   3.
   
http://dev.laptop.org/git/users/derosier/wireless-testing/tree/drivers/net/wireless/libertas_tf
   4. http://wiki.laptop.org/go/Libertas_Thinfirmware_HOWTO
   5. http://www.spinics.net/lists/linux-wireless/msg55208.html
   6.
   
http://labs.isee.biz/index.php/How_to_setup_Marvell_88w8686_SDIO_wifi#How_to_debug_the_libertas_driver
   7. http://wiki.laptop.org/go/XO_as_AP
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Re: [Server-devel] [UKids] Raspberri Pi/clone(s) most ruggedizable for OLPC fieldwork?

2016-04-02 Thread Adam Holt 
Awesome we can start banging on this long-awaited HW!.

Who can recommend the best/emerging/viable Fedora 22 vs. 23 vs. 24 options
to Alex?


On Sat, Apr 2, 2016 at 2:12 PM, Alex Perez  wrote:

>
> On Feb 6, 2016, at 1:10 PM, Adam Holt  wrote:
>
>
>- Will the $15 http://pine64.com (which just raised $1.7M) become
>genuinely productizable for truly hassle-free field use with 128GB MicroSD
>cards by late 2016?  On the bright side, it accommodates 128GB maximum,
>which is exactly what we need on the high end in 2016.
>
>
> Looping back on this...
>
> My PINE64 arrived in the mail today. Mine is the 2GB RAM variant, with
> gigabit ethernet, but no bluetooth or Wi-Fi (which is an add-in module)
>
>  I actually have a couple of 200GB microSD cards that I just acquired, and
> I’ll be putting it through its paces. The SanDisk SDSDQUAN-200G-G4A retails
> for $249, but the actual street prices are $80 (on Amazon)
>
> I suspect it will work fine in the PINE64. Does anyone here have any
> recommendations for putting XSCE through its paces, or otherwise
> stress-testing the install, besides normal benchmarking of static HTTP page
> load performance.
>
> Regards,
> Alex Perez
>
> --
> Unsung Heroes of OLPC, interviewed live @ http://unleashkids.org !
>
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Re: [Server-devel] [UKids] Raspberri Pi/clone(s) most ruggedizable for OLPC fieldwork?

2016-04-02 Thread Alex Perez 

> On Feb 6, 2016, at 1:10 PM, Adam Holt  wrote:
> 
> Will the $15 http://pine64.com  (which just raised $1.7M) 
> become genuinely productizable for truly hassle-free field use with 128GB 
> MicroSD cards by late 2016?  On the bright side, it accommodates 128GB 
> maximum, which is exactly what we need on the high end in 2016.

Looping back on this...

My PINE64 arrived in the mail today. Mine is the 2GB RAM variant, with gigabit 
ethernet, but no bluetooth or Wi-Fi (which is an add-in module)

 I actually have a couple of 200GB microSD cards that I just acquired, and I’ll 
be putting it through its paces. The SanDisk SDSDQUAN-200G-G4A retails for 
$249, but the actual street prices are $80 (on Amazon)

I suspect it will work fine in the PINE64. Does anyone here have any 
recommendations for putting XSCE through its paces, or otherwise stress-testing 
the install, besides normal benchmarking of static HTTP page load performance.

Regards,
Alex Perez

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