Finally some light for those who care about Debian on the Raspberry Pi

Finally, some light at the end of the tunnel!

As I have said in this blog and elsewhere, after putting quite a bit of work into generating the Debian Raspberry Pi images between late 2018 and 2023, I had to recognize I don’t have the time and energy to properly care for it.

I even registered a GSoC project for it. I mentored Kurva Prashanth, who did good work on the vmdb2 scripts we use for the image generation — but in the end, was unable to push them to be built in Debian infrastructure. Maybe a different approach was needed! While I adopted the images as they were conceived by Michael Stapelberg, sometimes it’s easier to start from scratch and build a fresh approach.

So, I’m not yet pointing at a stable, proven release, but to a good promise. And I hope I’m not being pushy by making this public: in the #debian-raspberrypi channel, waldi has shared the images he has created with the Debian Cloud Team’s infrastructure.

So, right now, the images built so far support Raspberry Pi families 4 and 5 (notably, not the 500 computer I have, due to a missing Device Tree, but I’ll try to help figure that bit out… Anyway, p400/500/500+ systems are not that usual). Work is underway to get the 3B+ to boot (some hackery is needed, as it only understands MBR partition schemes, so creating a hybrid image seems to be needed).

Sadly, I don’t think the effort will be extended to cover older, 32-bit-only systems (RPi 0, 1 and 2).

Anyway, as this effort stabilizes, I will phase out my (stale!) work on raspi.debian.net, and will redirect it to point at the new images.

Comments

Andrea Pappacoda tachi@d.o 2026-01-26 17:39:14 GMT+1

Are there any particular caveats compared to using the regular Raspberry Pi OS?

Are they documented anywhere?

Gunnar Wolf gwolf.blog@gwolf.org 2026-01-26 11:02:29 GMT-6

Well, the Raspberry Pi OS includes quite a bit of software that’s not packaged in Debian for various reasons — some of it because it’s non-free demo-ware, some of it because it’s RPiOS-specific configuration, some of it… I don’t care, I like running Debian wherever possible 😉

Andrea Pappacoda tachi@d.o 2026-01-26 18:20:24 GMT+1

Thanks for the reply! Yeah, sorry, I should’ve been more specific. I also just care about the Debian part. But: are there any hardware issues or unsupported stuff, like booting from an SSD (which I’m currently doing)?

Gunnar Wolf gwolf.blog@gwolf.org 2026-01-26 12:16:29 GMT-6

That’s… beyond my knowledge 😉 Although I can tell you that:

• Raspberry Pi OS has hardware support as soon as their new boards hit the market. The ability to even boot a board can take over a year for the mainline Linux kernel (at least, it has, both in the cases of the 4 and the 5 families).

• Also, sometimes some bits of hardware are not discovered by the Linux kernels even if the general family boots because they are not declared in the right place of the Device Tree (i.e. the wireless network interface in the 02W is in a different address than in the 3B+, or the 500 does not fully boot while the 5B now does). Usually it is a matter of “just” declaring stuff in the right place, but it’s not a skill many of us have.

• Also, many RPi “hats” ship with their own Device Tree overlays, and they cannot always be loaded on top of mainline kernels.

Andrea Pappacoda tachi@d.o 2026-01-26 19:31:55 GMT+1

That’s… beyond my knowledge 😉 Although I can tell you that:

Raspberry Pi OS has hardware support as soon as their new boards hit the market. The ability to even boot a board can take over a year for the mainline Linux kernel (at least, it has, both in the cases of the 4 and the 5 families).

Yeah, unfortunately I’m aware of that… I’ve also been trying to boot OpenBSD on my rpi5 out of curiosity, but been blocked by my somewhat unusual setup involving an NVMe SSD as the boot drive :/

Also, sometimes some bits of hardware are not discovered by the Linux kernels even if the general family boots because they are not declared in the right place of the Device Tree (i.e. the wireless network interface in the 02W is in a different address than in the 3B+, or the 500 does not fully boot while the 5B now does). Usually it is a matter of “just” declaring stuff in the right place, but it’s not a skill many of us have.

At some point in my life I had started reading a bit about device trees and stuff, but got distracted by other stuff before I could develop any familiarity with it. So I don’t have the skills either :)

Also, many RPi “hats” ship with their own Device Tree overlays, and they cannot always be loaded on top of mainline kernels.

I’m definitely not happy to hear this!

Guess I’ll have to try, and maybe report back once some page for these new builds materializes.