nandblaster: can't open fs.plc for reading

[Erik Garrison]

Emiliano,

Great to hear that it works for you!  Thanks for the valuable testing.

To avoid future confusion about this filetype I have updated
git://dev.laptop.org/users/erik/image-digestor so that it refers to a
'placement control file' and produces <image file basename>.plc as
output.  This should make things slightly clearer semantically.

Please git-pull.

Erik

On Wed, Dec 17, 2008 at 04:28:54PM -0200, Emiliano Pastorino wrote:
> It worked. I'll continue with my tests.
> 
> Thanks again, Erik!
> 
> On Wed, Dec 17, 2008 at 2:50 PM, Emiliano Pastorino <
> epastorino at plan.ceibal.edu.uy> wrote:
> 
> > Thanks, Erik!
> > I'll try it right now
> >
> >
> > On Wed, Dec 17, 2008 at 2:46 PM, Erik Garrison <erik at laptop.org> wrote:
> >
> >> Hi Emiliano!
> >>
> >> On Wed, Dec 17, 2008 at 02:22:37PM -0200, Emiliano Pastorino wrote:
> >> > Hi everyone!
> >> >
> >> > We're doing some tests with firmware q2e24 but we're having trouble when
> >> > trying to serve an unsigned build.
> >> > As it says at http://wiki.laptop.org/go/Multicast_NAND_FLASH_Update ,
> >> we
> >> > need an fs.plc file, but we don't know
> >> > how to generate it.
> >> >
> >>
> >> Judging by the description on the afformentioned page, the fs.plc file
> >> has the format described at
> >> http://wiki.laptop.org/go/OFW_NAND_FLASH_Updater
> >>
> >> It is basically a script used by OFW during the update process to build
> >> any partitions on the NAND and to validate the eblocks.  The bulk of the
> >> script is a bunch of sha256 digests for each 128KiB piece (erase-block,
> >> or eblock) of the image you're flashing.  You can see such scripts by
> >> unzipping an fs.zip from one of our signed builds and examining the file
> >> data.img.
> >>
> >> > Any tips?
> >>
> >> Ironically I just built a simple script to generate such files because
> >> it will help us in getting your custom images ready for secure reflash.
> >> Instructions regarding that process will be forthcoming this afternoon.
> >> In the meantime I suspect you can resolve the NANDBlaster issue by using
> >> the script.
> >>
> >> You can obtain the script from:
> >>
> >>  git-clone git://dev.laptop.org/users/erik/image-digestor
> >>
> >> Run it as follows against the image file you are trying to NANDBlast:
> >>
> >>  image-digestor.sh <image_file_name>
> >>
> >> After a minute or so it will produce a file called
> >> <image_file_name>.ofw_update_script.  Rename this file fs.plc, put it on
> >> the USB alongside fs.img, and start the NANDBlaster again by following
> >> the instructions on the Multicast NAND Updater page.
> >>
> >> Hopefully that resolves the issue.  Please indicate if you encounter
> >> more problems.
> >>
> >> Best,
> >> Erik
> >>
> >
> >
> >
> > --
> > Emiliano Pastorino
> > LATU - Plan Ceibal
> > Av. Italia 6201 CP: 11500, Montevideo, Uruguay
> > Tel: (598 2) 601 3724 int.: 469
> >
> 
> 
> 
> -- 
> Emiliano Pastorino
> LATU - Plan Ceibal
> Av. Italia 6201 CP: 11500, Montevideo, Uruguay
> Tel: (598 2) 601 3724 int.: 469