Re: Rapios Wic Image

[Jonas Reindl <jonas.reindl@kilobaser.com>]

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On 3/10/22 09:04, Henning Schild wrote:
> Hey Jonas,
>
> Am Wed, 9 Mar 2022 19:57:02 +0100
> schrieb Jonas Reindl<jonas.reindl@kilobaser.com>:
>
>> Hey everyone,
>>
>> I'm currently trying to build a raspios image as "wic-img" and get a
>> python import error.
>>
>> kas-version: 3.0.2
>>
>> isar-version: 0.8
> You might in fact want to try "next" instead. Isar master and releases
> are often slow to move, maybe your issue is fixed already.

First of all thanks for the help.

Upgrading to next didn't had a direct impact on the install. The 
suggestion from Jan Kiszka with

WIC_IMAGER_INSTALL += "python3-distutils"

helped to get the wic imager to start. But now I'm stuck with the problem, that wic is looking for the kernel in /boot/vmlinux.
Raspios installs the kernel with kernel.img. So I assumend I would need to set
IMAGE_BOOT_FILES = " \
      /kernel.img;vmlinuz \
      "

to remap the kernel. This still ends in the error message:

ERROR: kernel /build/tmp/work/raspios-bullseye-armhf/myimage-image-base-rpi-arm-wic-img/1.0-r0/rootfs/boot/vmlinux not found

Would you have any ideas to get that working.

>   
>> I'm using kas-container to build the images with multiconfig for that.
>>
>> ```
>>
>>       MACHINE ?= "rpi-arm"
>>       DISTRO ?= "raspios-bullseye"
>>
>>       IMAGE_FSTYPES = "wic-img"
>>
>> ```
>>
>> Error:
>>
>> Exception: bb.process.ExecutionError: Execution of
>> '/build/tmp/work/raspios-bullseye-armhf/my-image-base-rpi-arm-wic-img/1.0-r0/temp/run.generate_wic_image.285'
>> failed with exit code 1:
>> Traceback (most recent call last):
>>     File "/work/layers/isar/scripts/wic", line 27, in <module>
>>       from distutils import spawn
>> ImportError: cannot import name 'spawn' from 'distutils'
>> (/usr/lib/python3.9/distutils/__init__.py)
>> WARNING: exit code 1 from a shell command.
>>
>> If I enter the build environment with the kas shell and execute
>> python3 I'm able to import spawn. I also rebuild the docker container
>> to explicitly include python3-distutils. Maybe I misunderstood
>> something, but I don't know how I should further debug that.
> In fact wic is not executed in that container, but in a chroot in there.
>
> I think we currently lack a wic raspi example in isar itself, maybe
> there is something broken indeed. But it is possible and wic will be
> much better than "rpi-sdimg" which is currently questioned a lot and
> also might be broken at the moment.
>
> https://github.com/siemens/jailhouse-images

I tried to follow the wic configuration as good as possible from the jailhouse-image, but jailhouse uses native debian, which will install

the kernel differently as raspios does. Changing to debian native is not possible for me as I need that image to be able to boot on different raspberries.


>
> has rpi4 with wic in it
>
> regards,
> Henning
>   
>> In case needed I can provide the fullstack trace and the sh script
>> which tried to generate the wic.
>>
>> Best regards,
>>
>> Jonas
>>
>>
>>
BR,

Jonas

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