[meta-freescale] Improving SD-Card images

[Jens Rehsack]

Am 20.07.2014 um 13:13 schrieb maciej.borzecki at open-rnd.pl:

> > Dnia 19 lipiec 2014 o 16:50 Jens Rehsack <rehsack at gmail.com> napisał(a): 
> > 
> > 
> > Hi, 
> > 
> > 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.
>  
> Effectively your list in terms of wic translates to a couple of *.wks files that cover most common
> partition layouts and source plugins for boot image and recovery partition contents.
>  
> wic shares a lot of similarity to mic and *.wks is basically kickstart, so it should be pretty familiar to anyone
> with prior mic/anaconda experience

Hi Maciej,

looks cool - but how do I define an image (call it foo) shall contain foo-rootfs, foo-recoveryfs, foo-tmp and foo-data.
And beside I can enumerate some partitions, how can I get yocto to build rootfs+recoveryfs after my will (or at least what I'm able to express).

Cheers
-- 
Jens Rehsack
rehsack at gmail.com