Re: [ptxdist] Generate UBIFS Images

[Alexander Dahl <post@lespocky.de>]

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Hello Alex,

On Wed, Jan 20, 2021 at 11:56:55PM +0100, Alex Vazquez wrote:
> I have some questions about generating UBIFS images.
> First, I am using ptxdist-2018.05. For this version, I use Generate
> UBIFS Images (NO new version).

I would recommend to use the new approach, that should also work with
ptxdist-2018.05 already.

> - For the latest versions of ptxdist, it is possible to indicate
> arguments to generate the *.ubifs?

It is. Recent ptxdist versions use 'genimage' [1] to create those
images. If the default genimage config files are not sufficient for
you, you can just put your own config to your BSP.

For example: in a BSP for an at91sam9g20 based board with the ptxdist
platform named "foo", I put two files to
'configs/platform-foo/config/images':

- ubi.config  
- ubifs.config

You find the files distributed with ptxdist also in 'config/images',
e.g. in /usr/local/lib/ptxdist-2021.01.0/config/images or in the
ptxdist source git tree. You can start with those files and adapt them
to your needs. (For ubi/ubifs you actually should pick those as a
start, because there are several placeholders for flash memory
parameters to be substituted in there).

There's some documentation on image packages, I found this:

https://www.ptxdist.org/doc/ref_make_variables.html#image-packages

Not sure if someone should write some more explanation on that?
genimage itself is documented at [1] however.

Greets
Alex

[1] https://github.com/pengutronix/genimage/

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