[Server-devel] XS on XO Setup as Contingency for Main Power Outage

Walter Bender walter.bender at gmail.com
Wed Dec 15 20:23:12 EST 2010


On Wed, Dec 15, 2010 at 8:11 PM, John Watlington <wad at laptop.org> wrote:
>
> On Dec 15, 2010, at 7:09 PM, Anna wrote:
>
>> Sorry this is so long, but I thought I'd post this in case someone else needed something similar.  Also, any suggestions to make this more efficient are more than welcome.
>>
>> How I set up an "emergency use" XS on an XO-1
>>
>> Since I run a public XS on a big old Dell in my house, I needed a solid contingency plan should the power go out.  While I have my XS on a UPS, it's small and cheap and only keeps it up about half an hour.  I do have a power inverter that we hook up to a car battery, which keeps the DSL modem, and thus our internet, up for many hours so we can use our netbooks.  Charging an XO shouldn't add that much more drain.  So to keep my users happy and chatting while I surf the web in the dark, I set up the XS on an XO-1.  This will also be useful in the summer should my A/C unit go out when it's 100 degrees and I don't want my regular equipment to overheat.
>>
>> I followed the instructions here to set up an 8 GB SD card:  http://wiki.laptop.org/go/XS-on-XO
>> It takes forever for the first boot, of course, while moodle initializes.
>
> I would recommend that you use a class 6 or class 10 full size SD card for this purpose.
> One of the Sandisk Extreme III cards, for example.   The extra cost is worth it for the server.
> There is a huge difference in card performance, especially for small file writes, and
> the new larger sized (8+GB) microSD cards tend to be especially bad.
>
> Great write-up, by the way.

Agreed. This should be put on the wiki somewhere.

-walter

>
> Thanks!
> wad
>
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-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org


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