NixOS on raspberry pi zero w

marmolak · January 16, 2024, 1:47pm

Hello. Thank you for this great topic.
So I decided to try build my own image for rpi zero w.
I basically used provided flake and try to compile on aws aarch64 machine.

However, without luck.
System is 23.11 and this issue (unable to unpack archive) seems to be weird.

What I missed? NixOS on aws is just some random selected comunity ami so maybe should I start to dig here?

error: builder for '/nix/store/vy12b7lmf3y548whsjfv3m81vlm8g2zz-libpng-apng-armv6l-unknown-linux-gnueabihf-1.6.40.drv' failed with exit code 1;
       last 3 log lines:
       > unpacking sources
       > unpacking source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz
       > do not know how to unpack source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz
       For full logs, run 'nix log /nix/store/vy12b7lmf3y548whsjfv3m81vlm8g2zz-libpng-apng-armv6l-unknown-linux-gnueabihf-1.6.40.drv'.
error: 1 dependencies of derivation '/nix/store/2q5j823rwvrr8431y8dyg9i2w3cdrbsr-freetype-armv6l-unknown-linux-gnueabihf-2.13.2.drv' failed to build
error: 1 dependencies of derivation '/nix/store/9v3h4811dqsqc65yrvwq4y7mbyz7s8k0-fontconfig-armv6l-unknown-linux-gnueabihf-2.14.2.drv' failed to build
error: 1 dependencies of derivation '/nix/store/kdw5vbdbnp6djlqggmcw02lniqkay0zd-fontconfig-conf.drv' failed to build
error: 1 dependencies of derivation '/nix/store/li54ky7kl6yhjq204rkba2aig66x2hqk-system-path.drv' failed to build
error (ignored): error: cannot unlink '/run/user/0/nix-build-binutils-armv6l-unknown-linux-gnueabihf-2.40.drv-0/binutils-2.40/ld/.deps': Directory not empty
error (ignored): error: cannot unlink '/run/user/0/nix-build-libtasn1-armv6l-unknown-linux-gnueabihf-4.19.0.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/ban8rmijp7l85kvhgy5jg3qsrynahgm1-nixos-system-nixos-23.11.20240115.b8dd8be.drv' failed to build
error: 1 dependencies of derivation '/nix/store/sg2x74hlkf721z4355s8sy3zs9sqwm1y-ext4-fs.img.zst-armv6l-unknown-linux-gnueabihf.drv' failed to build
error: 1 dependencies of derivation '/nix/store/34ywqprscl80bmpwcpc2ihggnrk021wa-nixos-sd-image-23.11.20240115.b8dd8be-armv6l-linux.img-armv6l-unknown-linux-gnueabihf.drv' failed to build

[root@ip-172-31-16-53:~/flake]# nix --extra-experimental-features nix-command  log /nix/store/vy12b7lmf3y548whsjfv3m81vlm8g2zz-libpng-apng-armv6l-unknown-linux-gnueabihf-1.6.40.drv
warning: The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '/nix/store/vy12b7lmf3y548whsjfv3m81vlm8g2zz-libpng-apng-armv6l-unknown-linux-gnueabihf-1.6.40.drv^*'
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking sources
unpacking source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz
do not know how to unpack source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz

wolflu · January 16, 2024, 3:33pm

Not sure about that error, I think I also saw this onetime, but don’t know anymore how I got it and also what I did to solve it. Could you maybe provide more logs (nix log /nix/store/vy12b7lmf3y548whsjfv3m81vlm8g2zz-libpng-apng-armv6l-unknown-linux-gnueabihf-1.6.40.drv) and the exact flake (of course redact secrets) you’re using?

wolflu · January 16, 2024, 3:34pm

Thank you very much for that tip. That did the trick in combination with my initial device tree overlay. I2C now works.

I then tried to analyze if I can get the &i2c1 version to work. Reading about your two links I now understand that these &[node] things are semantic sugar to extend other nodes. I then tried to use that in combination with the hardware.i2c.enable = true but I still had no success as I already predicted since this doesn’t change the dtb file (I already analyzed this in my last post). I then tried to remove the -i2c suffix and still had the hardware.i2c.enable = true set which works now. So

I2C TL;DR

To enable i2c on a raspberry pi zero, use:

          hardware.deviceTree = {
            enable = true;
            overlays = [
              {
                name = "enable-i2c1-device";
                dtsText = ''
                  /dts-v1/;
                  /plugin/;
                  / { compatible = "brcm,bcm2835"; };
                  &i2c1 { status = "okay"; };
                '';
              }
            ];
          };
          hardware.i2c.enable = true;

WIFI

I now also wifi to work by either

wpa_supplicant:

          hardware.firmware = [ pkgs.raspberrypiWirelessFirmware ];
          networking = {
            wireless = {
              enable = true;

              networks = {
                [SSID] = {
                  psk = "[PSK]";
                };
              };
            };
          };

or using `iwd`:

          systemd.services.iwd.serviceConfig.Restart = "always";
          hardware.firmware = [ pkgs.raspberrypiWirelessFirmware ];
          networking = {
            networkmanager.wifi.backend = "iwd";
            wireless.iwd.enable = true;
          };
          boot.extraModprobeConfig = ''
            options cfg80211 ieee80211_regdom="DE"
          '';

And then connect to the wifi using the following commands:

$ iwctl
# list
# station wlan0 scan
# station wlan0 get-networks
# station wlan0 connect [ssid]

This will save the config for the next boot to: /var/lib/iwd.

wolflu · January 16, 2024, 3:37pm

@rnhmjoj do you have, by any chance, an idea about my compile issue in Cross-compile cups for armv6l-linux . I have no idea what is happening there.

marmolak · January 16, 2024, 4:20pm

Output of nix log is provided in previous comment.
Just:
do not know how to unpack source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz

Not sure if xz missing in system or something.

And my flake is basically yours:

{
  description = "Build image";
  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
  outputs = { self, nixpkgs }: rec {
    nixosConfigurations.rpi2 = nixpkgs.lib.nixosSystem {
      modules = [
        "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-raspberrypi.nix"
        ({ lib, pkgs, modulesPath, ... }: {
          nixpkgs.config.allowUnsupportedSystem = true;
          nixpkgs.hostPlatform.system = "armv6l-linux";
          nixpkgs.buildPlatform.system = "aarch64-linux"; #If you build on x86 other wise changes this.
          # ... extra configs as above

          system.stateVersion = "23.11";

          nixpkgs.overlays = [
            (final: super: {
              llvmPackages = super.llvmPackages_14;
              cmake = super.cmake.overrideAttrs (old: { env.NIX_CFLAGS_COMPILE = "-latomic"; });
            })
          ];

          boot = {
            initrd.includeDefaultModules = false;
            initrd.kernelModules = [ "ext4" "mmc_block" ];
            supportedFilesystems = lib.mkForce [ "vfat" "ext4" ];
          };
          disabledModules = [
            "${modulesPath}/profiles/all-hardware.nix"
            "${modulesPath}/profiles/base.nix"
          ];


          # setup a user
          users.mutableUsers = false;
          users.users = {
            user = {

...
no chsnges here

I’m building it with:
nix build --extra-experimental-features nix-command --extra-experimental-features flakes --impure --update-input nixpkgs .#images.rpi2

marmolak · January 16, 2024, 4:35pm

Message came from:
pkgs/stdenv/generic/setup.sh

However, I need to dig around more. For example where unpackCmd come from.

UPDATE:
Seems like I’m not only one stuck with libpng :).

UPDATE 2:
Should be solved but…

github.com/NixOS/nixpkgs

Build failure: libpng

opened 08:23PM - 01 Jan 24 UTC

closed 08:38PM - 24 Feb 24 UTC

zeuner

0.kind: build failure

### Steps To Reproduce Steps to reproduce the behavior: 1. `nix-build --opti…on substitute false -A libpng` ### Build log ``` this derivation will be built: /nix/store/hziy2dc91s6jqn00zsv1dqzcgwr8qs3j-libpng-apng-1.6.40.drv building '/nix/store/hziy2dc91s6jqn00zsv1dqzcgwr8qs3j-libpng-apng-1.6.40.drv'... Running phase: unpackPhase unpacking source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz do not know how to unpack source archive /nix/store/jpqz1p52xw3jlhc8w143v92k0iaar2i4-libpng-1.6.40.tar.xz error: builder for '/nix/store/hziy2dc91s6jqn00zsv1dqzcgwr8qs3j-libpng-apng-1.6.40.drv' failed with exit code 1 ``` ### Additional context This happened on recent checkouts of `nixpkgs` `master`. ### Notify maintainers Will do. ### Metadata Please run `nix-shell -p nix-info --run "nix-info -m"` and paste the result. ```console [user@system:~]$ nix-shell -p nix-info --run "nix-info -m" - system: `"x86_64-linux"` - host os: `Linux 4.19.0-8-amd64, Ubuntu, 20.04.6 LTS (Focal Fossa), nobuild` - multi-user?: `no` - sandbox: `no` - version: `nix-env (Nix) 2.16.1` - nixpkgs: `/nixpkgs` ``` --- Add a :+1: [reaction] to [issues you find important]. [reaction]: https://github.blog/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/ [issues you find important]: https://github.com/NixOS/nixpkgs/issues?q=is%3Aissue+is%3Aopen+sort%3Areactions-%2B1-desc

hannes · February 4, 2024, 7:38am

What worked for me was to write an overlay using the .tar.gz packaged sources:

(final: prev: {libpng = prev.libpng.overrideAttrs ( old: { src = prev.fetchurl {
      url = "mirror://sourceforge/libpng/libpng-1.6.40.tar.gz";
      hash = "sha256-j3ILNjqghoPJvypWMjb0UxOvLFXVQrVIGuF92NGDu0I=";
    };});})

With this change, I was able to get the sd-image to build (cross-compilation on a x86-64). I updated the nixpkgs bug with the same information.

marmolak · March 5, 2024, 11:09am

Ok. I ran build of nixos (unstable channel) image on aws arm64 machine and I just ended with:

error: builder for '/nix/store/2d9f8f3gl4hpacfvcr4zj28n0q1mj64b-linux-armv6l-unknown-linux-gnueabihf-6.1.63-stable_20231123.drv' failed with exit code 2;
       last 10 log lines:
       >   LD      vmlinux.o
       >   OBJCOPY modules.builtin.modinfo
       >   GEN     modules.builtin
       >   GEN     .vmlinux.objs
       >   MODPOST Module.symvers
       > ERROR: modpost: "__aeabi_uldivmod" [drivers/pwm/pwm-rp1.ko] undefined!
       > ERROR: modpost: "__aeabi_uldivmod" [drivers/media/platform/raspberrypi/rp1_cfe/rp1-cfe.ko] undefined!
       > ERROR: modpost: "__aeabi_ldivmod" [drivers/media/platform/raspberrypi/rp1_cfe/rp1-cfe.ko] undefined!
       > make[1]: *** [../scripts/Makefile.modpost:126: Module.symvers] Error 1
       > make: *** [../Makefile:1966: modpost] Error 2
       For full logs, run 'nix log /nix/store/2d9f8f3gl4hpacfvcr4zj28n0q1mj64b-linux-armv6l-unknown-linux-gnueabihf-6.1.63-stable_20231123.drv'.
error: 1 dependencies of derivation '/nix/store/314ixmfr3brnjkbxn0ka9lx8rcwy2sgl-nixos-system-handaki-24.05.20240229.1536926.drv' failed to build
error: 1 dependencies of derivation '/nix/store/4jylgypyvdgpjqsnqwq51jingmkalgmd-ext4-fs.img.zst-armv6l-unknown-linux-gnueabihf.drv' failed to build
error: 1 dependencies of derivation '/nix/store/k6jk2vz7zav6ga6bmb60jf87asyn68gc-nixos-sd-image-24.05.20240229.1536926-armv6l-linux.img-armv6l-unknown-linux-gnueabihf.drv' failed to build

I enabled:
boot.binfmt.emulatedSystems = [ "arm7l-linux" ];

However, I’m not sure how to solve missing symbols in kernel modules.

Have you encountered a similar problem?

marmolak · March 13, 2024, 2:20pm

Ok. Solved. Wrong kernel were on duty.

jue89 · June 5, 2024, 3:31pm

Could you elaborate? I’m running into the same problem.

marmolak · June 6, 2024, 4:15pm

Hello. Not sure if bug or feature, however I switched to:

system.stateVersion = "nixos-unstable";
boot.kernelPackages = lib.mkForce pkgs.linuxPackages_latest;

And yes, upstream kernel will not have all drivers, but I just don’t need HATs supports etc…

It booted fine, but some time ago. I need to build and test new unstable image.

xiil · September 4, 2024, 11:57am

hi together - has anyone experience with this built: GitHub - cyber-murmel/nixos-rpi-zero-w: NixOS on the Raspberry Pi Zero W

NixOS on raspberry pi zero w

I2C TL;DR

WIFI

wpa_supplicant:

or using iwd:

or using `iwd`: