[OLPC Engineering] [Techteam] New F14-arm build os21

Sridhar Dhanapalan sridhar at laptop.org.au
Mon Dec 19 22:34:31 EST 2011

On 20 December 2011 05:34, Martin Langhoff <martin at laptop.org> wrote:
> On Mon, Dec 19, 2011 at 12:05 PM, Martin Langhoff <martin at laptop.org> wrote:
>>> Ctrl+Alt+Erase doesn't work on XO-1.5s.
>> You are going to build your own OS image, right? We can give you a
>> quick recipe to re-enable it.
> Here you go. Can be used to monumentally shoot yourself in the foot,
> so pull trigger with care:
> http://wiki.laptop.org/go/OS_Builder/Edit_a_config_file
> { I know one day Reuben will want to kill me for having published this
> recipe in the wiki. And he'll be justified. At least we live in
> different cities. }

Cool - thanks.

>>> This feature is used by teachers in the field, and by us in testing.
>>> Its removal is a regression for us.
>> Can you explain the use by teachers in the field? Use during testing
>> and debugging is fine, but we all work for our end users :-)
> I am still very interested in your teacher use case here...

It's a recognition that no software is bug-free, and that users
(especially children) will always find a way to make a system
difficult to use. For example, children often load activities without
closing previous ones. We can educate them to not do this, but it
still happens on occasion.

The 'solution' is to quickly restart Sugar with a Ctrl+Alt+Erase. It
solves most problems, and it's faster than rebooting.


Sridhar Dhanapalan
Engineering Manager
One Laptop per Child Australia

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