soasXO builds for USB?

[Yioryos Asprobounitis]

Thank you.
However I was referring to the http://download.sugarlabs.org/soas/snapshots/2/ builds specifically where you have only tree.tar.lzma versions. Trying these with the instructions mentioned bellow failed miserably (tried soas01xo and soas02xo). Expanding their content in an ext3 formatted stick also failed boot.
I could try the newer soas04xo.tree.tar.lzma but pls specify 
a) Is this a device images? If yes what size?
b) If not device images but indeed trees, are devices build with their content know to boot the XO-1?. If yes do they need anything "special"?
Thanks


--- On Sun, 11/1/09, Martin Dengler <martin at martindengler.com> wrote:

> From: Martin Dengler <martin at martindengler.com>
> Subject: Re: soasXO builds for USB?
> To: "Yioryos Asprobounitis" <mavrothal at yahoo.com>
> Cc: fedora-olpc-list at redhat.com
> Date: Sunday, November 1, 2009, 3:37 PM
> On Sun, Nov 01, 2009 at 10:30:15AM
> -0800, Yioryos Asprobounitis wrote:
> > Could someone post some instruction here or at the
> download page on
> > howto run the new soasXO builds from a USB stick
> (assuming this is
> > feasible)?
> 
> From http://cgit.sugarlabs.org/soas/mainline/tree/README.txt
> :
> 
> Instructions for experts:
> ------------
> either:
>   copy-nand u:\soas??xo.img
> or: (2g or larger removable)
>   cat soas??xo.4gremovable.tar.lzma | lzma -dc - | tar
> xf - -O > /dev/sdX
> or: (4g or larger removable)
>   cat soas??xo.2gremovable.tar.lzma | lzma -dc - | tar
> xf - -O > /dev/sdX
> 
> 
> Quick Start for normal people:
> -------------
> 
> Create a removable drive with Sugar for use on your XO.
> 
> You need to have an unlocked XO first.  See
> instructions here for
> unlocking:
> 
> http://wiki.laptop.org/go/Activation_and_Developer_Keys#Disable_the_security_system
> 
> 1) Download the right sized-image: 2g if you have a 2g
> removable
> drive, 4g if you have a 4 or larger gigabyte removable
> drive.
> 
> 2) "burn" it onto your removable media (USB stick / SD
> card).
> 
> **** THIS WILL ERASE EVERYTHING ON YOUR REMOVABLE DRIVE
> ****
> 
> Either:
> 
>  cat soasxo??.4gremovable.tar.lzma | lzma -dc - | tar xf -
> -O > /dev/sdX
> 
> or:
> 
>  cat soasxo??.2gremovable.tar.lzma | lzma -dc - | tar xf -
> -O > /dev/sdX
> 
> Replace the "??" with the right filename, and replace the
> "/dev/sdX"
> with the name of your removable device (the _whole device_,
> NOT a
> partition like /dev/sda1)
> 
> 3) When this is done, eject the device and be sure all data
> were
>    written:
> 
>  eject /dev/sdX ; sync ; sync
> 
> 4) Plug the stick/card into your XO-1 and power it on.
> 
> 
> Improvements to these instructions are very welcome.
> 
> > thx
> 
> Martin
>