[meta-freescale] Improving SD-Card images

[Jens Rehsack]

Am 21.07.2014 um 16:50 schrieb Otavio Salvador <otavio at ossystems.com.br>:

> Hello,
> 
> 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 ...

But beside of unifying image creation - which is of course a great step
for both, anyone who can give me a hint where to look for 2 independent
filesystems being created in one target (foo-image)?.

Thanks in advance.

Cheers
-- 
Jens Rehsack
rehsack at gmail.com