nandblaster: can't open fs.plc for reading

[Emiliano Pastorino]

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
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