[meta-freescale] Two images in one

[Keskinarkaus, Teemu]

Hi,

On older Yocto project for x86 based HW I have two images in one. Basically the normal image and second is backup system in case the normal system for whatever reason won't boot etc..Boot loader does the selection which image to start loading.

That project used hdddirect - image  so all the work was done for that.  Now I have iMX6 based HW and it uses sdcard - image and recipes and tasks are different I haven't been able to figure out how to do the similar thing on that.

So I have two, mostly, independent image recipes. One for normal and for backup system. The normal image recipe then adds the backup system image after main image and copies the kernel to the FAT partition along the normal image kernel. Basically just add one more partition to normal system image and add backup system rootfs there.

Problem now is that since the tasks etc.. are so different with sdcard - image compared to hdddirect that I haven't found a way (task to modify that is) how to add those partition etc.. tasks for adding the backup system.

Has anyone else done similar thing for sdcard - image and/or have any suggestion how to do that?

If someone knows if there is support in Yocto already that would be good to know. I'm using Yocto 2.1.

Also, if you think this should be on yocto - mailing list do tell. The sdcard - image creation is in meta-fsl-arm - layer so that's why I thought this mailing list would be better suited for it.

-TeemuK


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