[Server-devel] Regarding my OLPC XS Wishlist

[Tony Anderson]

Hi,

I hope we can keep Abhisek in the loop as he has detailed information on 
the XS version deployed in Nepal. The procedure there is to build XS and 
release it as an img. The image is loaded to a usb drive 
(mkusbinstall.sh). This key is used to install all of the deployed 
school servers.  I have attached the instructions for installing NEXS 
from the olenepal redmine (slightly edited).

I am very internet-challenged (at this campground I arrived on Thursday 
and used the internet for about two hours and then it died - now on 
Sunday evening it is working intermittently!), so I think some of my 
previous comments have not been received. So please be patient if you 
have read this before:

I think the separation of the server into two components XS and XC is 
very valuable. The XC build should provide a working schoolserver which 
can be accessed via the LAN from an XO using ssh. With the XS-Au fix for 
the 'race' condition in kickstart, it should be possible to do this 
install 'headless' on a server which supports booting from the usb drive 
when present (and bootable).

XC provides the content for the /library partition. However, with Daniel 
Drake's usbmount scripts XC could be used to install any optional 
packages such as Dan's Guardian, Moodle (forgive me, Martin), Fedora 
Commons, Fez, mediawiki, and so on.

The netsetup.sh script should be used to configure the WAN network and 
should not be needed when the school server is not connected to an 
external network (the LAN network is configured the same in every school 
as 172.18.0.1). The LAN should be configured for the baseboard (RJ45) 
port and the WAN for a secondary port (e.g. usb-ethernet).

Essentially this is the procedure used in Nepal with considerable 
success over the past two years (success measured by the schoolserver 
very rarely being a problem requiring service (UPS failures seem far 
more frequent).

Tony

P.S. 
http://wiki.laptop.org/go/OLE_Nepal:Procedure_to_build_NEXS_from_OLPC_XS 
gives a description of the build procedure used for XS-0.4. It provides 
details on the installation of the extra packages as of that time. 
Abhishek Singh can provide more recent details.

On 06/03/2011 04:21 PM, Sridhar Dhanapalan wrote:
> On 4 June 2011 00:00, Aleksey Lim<alsroot at activitycentral.org>  wrote:
>> On Fri, Jun 03, 2011 at 09:40:48AM -0400, Martin Langhoff wrote:
>>> On Fri, Jun 3, 2011 at 7:49 AM, Sridhar Dhanapalan
>>> <sridhar at laptop.org.au>  wrote:
>>>> On 3 June 2011 21:31, Aleksey Lim<alsroot at activitycentral.org>  wrote:
>>>>> btw, did someone try to use cloning paradigm for setting up new school
>>>>> servers instead of using regular install way? Just clonning the system
>>>>> will lest avoid many issues by design.
>>>> Do you mean creating an image of a server installation and applying it
>>>> to other machines?
>>>>
>>>> We've done that with the XS-AU (using clonezilla), and I'm pretty sure
>>>> it works with an OLPC XS.
>>> Note that without a script that cleans up config&  state, you're bound
>>> to have some fun problems with the resulting systems.
>> Do you mean particular script, which one?
> You'll need to clean up:
>
>      /etc/udev/rules.d/70-persistent-net.rules (delete the lines that
> refer to all the eth devices)
>      /etc/sysconfig/network-scripts/ifcfg-eth* (remove the HWADDR line)
>      ssh keys (/etc/ssh/ssh_host_*)
>      postgresql server.crt
>
> Info: http://dev.laptop.org.au/issues/422
>
> Sridhar
>

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