downgrade firmware

[Esteban Bordón]

I'm checking /boot/ folder and bootfw.zip is not present.  Laptops brought
this broken version (q3b10) from factory.


 Esteban Bordón
Investigación y Desarrollo - Plan Ceibal



2011/10/5 Martin Langhoff <martin.langhoff at gmail.com>

> If the laptops have a "newer" (but broken) OFW in /boot/bootfw.zip,
> then you can downgrade it, but in the next boot it will be re-upgraded
> to the version in /boot/bootfw.zip
>
> If that is actually the problem you are seeing, then,
>
>  - You can try to delete or replace /boot/bootfw.zip in your same
> script to have /boot/bootfw.zip in sync with what you are flashing.
>
>  - You can re-spin the "older but correct" OFW you have with a newer
> version string
>
> cheers,
>
>
> m
>
>
> On Tue, Oct 4, 2011 at 2:18 PM, Esteban Bordón
> <ebordon at plan.ceibal.edu.uy> wrote:
> > Hi all,
> >
> > We have several laptops with a firmware version that doesn't work and we
> > want to downgrade to a previous signed firmware. I think that we could
> make
> > a fs.zip containing olpc.fth script whith the lines to do the downgrade.
> >
> > I did a basic script, but when XO boots I get the message
> >
> > restarting to enable SPI FLASH writing Try again after system restarts
> >
> > After restart, the laptop shows the same message again.
> >
> > Somebody knows how to solve this?
> >
> > Thanks,
> > Esteban.
> >
> > _______________________________________________
> > Devel mailing list
> > Devel at lists.laptop.org
> > http://lists.laptop.org/listinfo/devel
> >
> >
>
>
>
> --
>  martin.langhoff at gmail.com
>  martin at laptop.org -- Software Architect - OLPC
>  - ask interesting questions
>  - don't get distracted with shiny stuff  - working code first
>  - http://wiki.laptop.org/go/User:Martinlanghoff
>
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