[Sugar-devel] Read-only access to thumb drive forbidden by Rainbow?

[Walter Bender]

You can isolate Rainbow by disabling it and seeing if the problem goes away.

sudo rm /etc/olpc-security

will disable Rainbow

sudo touch /etc/olpc-security

will reenable it.

-walter

On Fri, Aug 28, 2009 at 10:19 PM, Jim Simmons<nicestep at gmail.com> wrote:
> As I have mentioned in this list before, I am trying to make View
> Slides able to get pictures that may or may not be in the Journal and
> add them to a slide presentation.  Under .82 objects in thumb drives
> can be listed using the Data Store API, which was fine.  In .84 you
> cannot do that any more, but I was led to believe that if I just
> wanted to READ these files that Python IO would work.  So I use this
> code:
>
>        valid_endings = ('.jpg',  '.jpeg', '.JPEG',  '.JPG', '.gif',
> '.GIF', '.tiff', '.TIFF', '.png', '.PNG')
>        for dirname,  dirnames,  filenames in os.walk('/media'):
>            for filename in filenames:
>                if filename.endswith(valid_endings):
>                    iter = self.ls_right.append()
>                    jobject_wrapper = JobjectWrapper()
>
> jobject_wrapper.set_file_path(os.path.join(dirname,  filename))
>                    self.ls_right.set(iter,  COLUMN_IMAGE,  filename)
>                    self.ls_right.set(iter,  COLUMN_PATH,  jobject_wrapper)
>
> Now this code runs just fine on the Sugar test environment of Fedora
> 11 (.84) and Fedora 10 (.82).  However, if I try running the same code
> on my XO, currently running .82, the Activity does not even finish
> coming up.  Using the Log Activity does not give me any useful
> messages.  I can only suspect that Rainbow is the culprit here,
> although I'm not getting any actual messages that say that.  It's just
> a guess on my part.
>
> In the code above the jobject_wrapper is a class I created so that my
> table column could hold an object that would return a file path,
> either by getting it from a wrapped journal object or from a path
> supplied by the code above.  Works fine in my test environment, but
> bails out on my XO.
>
> Does anyone have any ideas?  Thanks,
>
> James Simmons
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>



-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org