olpc.fth

[Jerry Vonau]

On Thu, 2011-02-03 at 17:02 -0600, Jerry Vonau wrote:
> On Thu, 2011-02-03 at 15:52 -0600, Jerry Vonau wrote:
> > On Thu, 2011-02-03 at 15:37 -0600, Jerry Vonau wrote:
> > > On Thu, 2011-02-03 at 16:21 -0500, Martin Langhoff wrote:
> > > > On Thu, Feb 3, 2011 at 4:16 PM, Jerry Vonau <jvonau at shaw.ca> wrote:
> > > > > Just a quick question is it possible to run commands that are available
> > > > > at OFW prompt inside the olpc.fth file? I'm looking at trying to run
> > > > > add-tag-from-file from within olpc.fth.
> > > > 
> > > > I used to think you could, but according to Reuben and Mitch... you
> > > > can't. By the time boot.fth gets executed, OFW has put the memory back
> > > > in readonly mode.
> > > > 
> > > > So the add-tag game should be done with a proper keyjector.
> > > > 
> > > > Impractical but safer.
> > > > 
> > > 
> > > Then the trick for olpc.fth would be to store the info and reboot to
> > > flash the info in, like how bootfw.zip is handled.
> > > 
> > > just thinking out loud,
> > 
> > Just found this gem:
> > 
> > http://dev.laptop.org/pub/firmware/scripts/newkatag.fth
> > 
> > looks to be do-able,
> > 
> > Jerry
> 
> Rough proof of concept attached.
> 

ok the buffer is too small, the key gets truncated, but this looks to be
viable. Anybody got a quick fix?

Jerry