[meta-freescale] Improving SD-Card images

[Maciek Borzecki]

On pon, 2014-07-21 at 11:50 -0300, Otavio Salvador wrote:
> On Sun, Jul 20, 2014 at 8:13 AM, maciej.borzecki at open-rnd.pl
> <maciej.borzecki at open-rnd.pl> wrote:
> >> Dnia 19 lipiec 2014 o 16:50 Jens Rehsack <rehsack at gmail.com> napisał(a):
> >> the options of meta-fsl-arm/classes/image_types_fsl.bbclass to generate
> >> sdcards are somehow limited :)
> >>
> >> For the final release we'd like to have following partitions:
> >> 1) boot (ext2, fat?)
> >> 2) prod-root (squashfs)
> >> 3) recovery-root (squashfs)
> >> 4) volatile (ext[34]?)
> >> 5) changes (unionfs over 2)
> >>
> >> Looks as if image_types_fsl.bbclass would need rework to support >2
> >> partition, but that's just coding.
> >
> > Have you considered wic? I've posted a patch that adds building of SD card
> > image for BBB:
> > http://article.gmane.org/gmane.linux.embedded.yocto.meta-ti/4171 also
> > meta-ti have already dumped their
> > sdimg bbclass in favor of wic. Not saying that meta-fsl should do the same,
> > just pointing out that there may
> > be some room for unification.
> ...
>
> This is the long-term goal for sure.
>
> I have worked with Tom in extending 'wic' to have the plugin system
> you used to enable BBB to generate the image. I also want to try to
> leverage the U-Boot support backend so we can avoid a lot of
> custom-made recipes and duplication.
>
> I wasn't aware of your patch (thanks), I will look at it next week ...

Otavio, did you get a chance to look at the patch for BBB? The latest
version is right here:
http://article.gmane.org/gmane.linux.embedded.yocto.meta-ti/4185

Within the next week or so, I hope to be able to work for some time on
one of the iMX6 boards (wandboard or nitrogen). If time permits, I'll
post a patch with image definition that would match the current SD card
images.


--
Maciej Borzęcki
Senior Software Developer at Open-RnD Sp. z o.o., Poland
www.open-rnd.pl
mobile: +48 889 117 365, fax: +48 42 657 9079

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