Hello Srini,
I think what you are looking for is the fitimage, it will allow you to bundle
the kernel and devicetree together in a single file and it also allows you add
a signature.
This process is well integrated in yocto, from what I remember activating the
fitimage is relatively easy:
- in your machine.conf
- declare KERNEL_CLASSES += "kernel-fitimage" and KERNEL_IMAGETYPE =
"fitimage"
- in your u-boot defconfig (configs/yourboard_defconfig
- enable CONFIG_FIT=y
- in your config include/configs/your_board.h change the script to boot your
fitimage
I hope this helps,
Regards,
Mathieu
> -----Message d'origine-----
> De : yocto-boun...@yoctoproject.org <yocto-boun...@yoctoproject.org>
> De la part de Srinivasan, Raja
> Envoyé : August 8, 2018 2:51 PM
> À : yocto@yoctoproject.org
> Objet : [yocto] uBoot, kernel and device tree files
>
> All
>
>
>
> We are using rocko.on variscite var-som-mx6.
>
> In order to increase the security of our system (during a system upgrade), we
> are looking to merge uImage (kernel image) and the device tree file into 1
> file. Currently these are 2 different files and are worried that a file copy
> operation might get aborted.
>
> My research so far indicates mkuboot can be used to merge these. but
> having trouble making this work.
>
> Need some ideas.
>
>
>
> Any pointers appreciated. srini
>
>
>
>
>
>
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