Multiple Questions from a SysAdmin

[Bryan Berry]

Hey guys,

I have multiple questions that maybe quite noobish. I have had them for
a while and been looking for answers in the wiki, w/out success. 

1. How can I cryptographically sign my own custom NAND image? We will
need to do custom images for our pilot. For example, we need to include
the Nepali activities we have built, Gcompris, and SocialCalc, that are
not part of the standard build. The 6th graders at our pilot schools
will require a different image than the 2nd graders.

I have looked at the wiki page on building custom images and it looks
fairly difficult. http://wiki.laptop.org/go/Building_custom_images

Is there a way to cheat hard labor by using nandwrite or nanddump to
simply copy customized image from an existing XO to a blank USB key?

Also, have no clue how to crypto sign the custom image

2. Does Avahi work together w/ Telepathy (local mesh) and EJabber
(multiple meshes) for the presence service? If so, how?

I would appreciate if someone could point me to a good resource to learn
more about how avahi works. I have only found a little bit of info about
it on the web. Or does it simply handle network interface configuration?

3. What aspects of the mesh does Jabber enable that aren't there by
default?

4. When I turn on an XO it always shows Mesh Networks 1, 6, and 11 even
if there are no other XO's around. Why is this? I have always presumed
that Network 1 was the XO's own instance of the mesh in case it didn't
see a school server. But what about the other two?


Thanks in advance for your help. I very much appreciate it.


-- 
Bryan W. Berry
Systems Engineer
OLE Nepal, http://www.olenepal.org