How to add a new partition to Stm32mp257 Yocto

[bugman]

I need a partition as a backup partition for the root file system.

How can I add a new partition in stm32mp2?

[Christophe Guibout]

Hello @bugman,

You need to add a partition into the flashlayout : feel free to look into this wiki page.

In Yocto, if you use a static flashlayout, I would recommand the add this in your machine:

ENABLE_FLASHLAYOUT_DEFAULT = "1"
FLASHLAYOUT_DEFAULT_src="<path of your flashlayout>.tsv"

Your flashlayout will be automatically deployed on build.

BR,

Christophe

[bugman]

Is this method the same as modifying on the generated tsv? I am wondering if there is a quick way to define new partitions in Yocto, such as rootfs, userfs, etc。

[Christophe Guibout]

Hello @bugman,

These recipes are there to cook the content of the partitions, not to add a new partition.

BR,

Christophe

[bugman]

Thank you very much for your patient reply.

Perhaps my initial statement was not correct.

My goal is to create a new partition with my own custom content, so I tried to create recipes but encountered many problems. I wonder if my direction is incorrect?