Re: wic plugins, any documentation?

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 07.01.25 16:57, Ulrich Teichert wrote:
> Hi,
> 
> I'm trying to write a wic plugin to generate a bootable partition for a Xilinix zynqmp
> board. I've managed building the necessary infrastructure (bootgen) and have the
> contents available for the python script. As far as I can tell all gets assembled correctly,
> but it doesn't show up in the FAT partition (mounted as /boot on the target).
> 

Hmm, I created images for zynqmp before but didn't need that back then:

https://github.com/siemens/jailhouse-images/blob/master/wic/ultra96.wks

What does your plugin have to do differently?

> Is there a documentation available for wic plugins which I've missed? If not, would it
> be a mistake for my plugin to derive from the RootfsPlugin? In which way the plugin
> controls where the content ends up in the target partition?

We are taking wic from upstream OE, and I'm not aware of any generated
doc from what wic has inline. But you could browse it, e.g. here:

https://github.com/ilbers/isar/blob/master/scripts/lib/wic/pluginbase.py

Jan

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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