install raspbian bullseye or bookworm

[oupala]

Is it possible to install raspbian bullseye or bookworm with raspbian-ua-netinst?

If yes, how ?

[diederikdehaas]

Normally one can do that by specifying release=bullseye f.e., but last time I tried that, the system wouldn't boot as there was no kernel installed. And that's because the 4.9 kernel which is used in all releases hasn't been added to bullseye and I presume neither to bookworm.
You could possibly workaround that in a postinstall script by adding Buster sources and install the kernel from Buster, but I haven't tried/verified myself whether that would actually work.

[oupala]

So there is currently no way to install the current debian stable bullseye on a raspberry pi using raspbian-ua-netinst?

[diederikdehaas]

Not without the aforementioned workaround.

[oupala]

And who is in charge of adding this kernel to bullseye?

raspberrypi os is already based on bullseye so there is some kernel adapted to bullseye.

[diederikdehaas]

That would be plugwash, but IIRC he won't do it as the 4.9 kernel gives problems with Bullseye's software (I don't know specifics).
A while ago I started a rewrite/restructuring of the installer which should pave the way to install pure Debian, but there hasn't been much progress lately.

[oupala]

Ok, thanks for the information.

Is there a way that we can help you with this new installer to install pure debian?

[diederikdehaas]

Not now. But it would be helpful when I push the first stage of the rewrite (new structure, no new functionality) to Github, that people test it whether I didn't break anything. But I can understand when there's little interest for it as it only supports installing old releases.

[oupala]

I'd be please to help once it'll be time to do so.

Please do not hesitate to ping me. I have a spare raspberry pi dedicated for testing.

[chris18890]

@oupala Might be worth you checking out the @FooDeas fork of this project, as bullseye support was added in FooDeas/raspberrypi-ua-netinst#228