I’ve built a flake to run nix on a raspberry pi using raspberry-pi-nix, and it works fine. The only problem is that some packages fail when I try to install or enable them. The base flake is as follows:
{
description = "NixOS Raspberry Pi configuration";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
raspberry-pi-nix.url =
"github:nix-community/raspberry-pi-nix/v0.4.0"; # Ensure this is correct
};
nixConfig = {
extra-substituters = [ "https://nix-community.cachix.org" ];
extra-trusted-public-keys = [
"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
];
};
outputs = { self, nixpkgs, raspberry-pi-nix }:
let
# inherit (nixpkgs.lib) nixosSystem;
basic-config = { pkgs, lib, ... }: {
# bcm2711 for rpi 3, 3+, 4, zero 2 w
# bcm2712 for rpi 5
# See the docs at:
# https://www.raspberrypi.com/documentation/computers/linux_kernel.html#native-build-configuration
raspberry-pi-nix.board = "bcm2711";
time.timeZone = "Europe/London";
users.users.root.initialPassword = "root";
hardware = {
bluetooth.enable = true;
raspberry-pi = {
config = {
all = {
base-dt-params = {
# enable autoprobing of bluetooth driver
# https://github.com/raspberrypi/linux/blob/c8c99191e1419062ac8b668956d19e788865912a/arch/arm/boot/dts/overlays/README#L222-L224
krnbt = {
enable = true;
value = "on";
};
};
};
};
};
};
};
in {
nixosConfigurations.rpi = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
modules = [
./config
raspberry-pi-nix.nixosModules.raspberry-pi
basic-config
{
nixpkgs.crossSystem = {
# target platform
system = "aarch64-linux";
};
}
];
};
};
}
and builds / deploys fine, but when I try to add e.g. services.devmon.enable = true;, I get an error that looks like this:
error: builder for '/nix/store/m1zj0a7qcawy895pir5fv12zp584s56r-volume_key-aarch64-unknown-linux-gnu-0.3.11.drv' failed with exit code 2;
last 10 log lines:
> libtool: compile: aarch64-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I/nix/store/a0fdyhwp28c0j671lh75ifll6xjd5w6w-util-linux-aarch64-unknown-linux-gnu-2.39.4-dev/include/blkid -I/nix/store/10wq36rsqgx5qagidjrxbl9qb5ryivv6-glib-aarch64-unknown-linux-gnu-2.80.4-dev/include/glib-2.0 -I/nix/store/5iq6phwlyfzn2q8b33gsm72zx3am4dnm-glib-aarch64-unknown-linux-gnu-2.80.4/lib/glib-2.0/include -I/nix/store/4jk67yxb0slhfjxb81sb8zhnlrswdpnk-gpgme-aarch64-unknown-linux-gnu-1.23.2-dev/include -I/nix/store/gcdy6f9p0hs7d5mqwwc8mnvsqzvidak5-libassuan-aarch64-unknown-linux-gnu-2.5.7-dev/include -I/nix/store/1a2lhm1fnzyaj2qvdb4kgbgdx7jis7kg-libgpg-error-aarch64-unknown-linux-gnu-1.50-dev/include -I/nix/store/q5whilgh7wihqhfjw09grbn287shp9s8-cryptsetup-aarch64-unknown-linux-gnu-2.7.3-dev/include -I/nix/store/zqmrb0jdspkgxd6mvhb7x14h82ylnmfv-nss-aarch64-unknown-linux-gnu-3.101.2-dev/include/nss -I/nix/store/prmpc54j96gkv7y5fbfcvzhls6dr2j5c-nspr-aarch64-unknown-linux-gnu-4.35-dev/include -g -O2 -Wall -W -Wcast-align -Wmissing-noreturn -Wnested-externs -Wpointer-arith -Wshadow -Wundef -Wwrite-strings -c python/volume_key_wrap.c -fPIC -DPIC -o python/.libs/_volume_key_la-volume_key_wrap.o
> python/volume_key_wrap.c:198:11: fatal error: Python.h: No such file or directory
> 198 | # include <Python.h>
> | ^~~~~~~~~~
> compilation terminated.
> make[2]: *** [Makefile:1097: python/_volume_key_la-volume_key_wrap.lo] Error 1
> make[2]: Leaving directory '/build/volume_key'
> make[1]: *** [Makefile:1240: all-recursive] Error 1
> make[1]: Leaving directory '/build/volume_key'
> make: *** [Makefile:751: all] Error 2
For full logs, run 'nix log /nix/store/m1zj0a7qcawy895pir5fv12zp584s56r-volume_key-aarch64-unknown-linux-gnu-0.3.11.drv'.
error: 1 dependencies of derivation '/nix/store/nf5cvmcbwjvaxkd9bh6gigclxkyi4d2m-libblockdev-aarch64-unknown-linux-gnu-3.1.1.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-liburcu-aarch64-unknown-linux-gnu-0.14.0.drv-0/build': Directory not empty
error: 1 dependencies of derivation '/nix/store/ljvsk5afaqr03ivx317cqqxkd29fmgr4-etc.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-gtk+3-aarch64-unknown-linux-gnu-3.24.43.drv-1/build': Directory not empty
error: 1 dependencies of derivation '/nix/store/8xni5ch7wcz87canjg2x9r2y5cb3imkd-udisks-aarch64-unknown-linux-gnu-2.10.1.drv' failed to build
error: 1 dependencies of derivation '/nix/store/bmg1pv91vp9arzlxnik9w9fzhlqvhas1-nixos-system-gpteahouse-24.11.20240910.1355a0c.drv' failed to build
error: 1 dependencies of derivation '/nix/store/r80h5ykzyd5g98vzav6vw6nrwvmnm7gz-ext4-fs.img.zst-aarch64-unknown-linux-gnu.drv' failed to build
error: 1 dependencies of derivation '/nix/store/1d8j783qwcf6jgmrxga14rm0knhm92y3-nixos-sd-image-24.11.20240910.1355a0c-aarch64-linux.img-aarch64-unknown-linux-gnu.drv' failed to build
The same error comes up when I disable devmon and install specifically volume_key. I also had a similar error when trying to install networkmanager, where vpnc was failing to build. I fixed that with networking.networkmanager.plugins = lib.mkForce [ ]; to simply avoid installing it, and I could conceivably do without devmon, but this seems like some weird greater thing where some packages are failing to build for aarch64-linux, even though nixpkgs claims that they’re fine to use on those platforms.
It feels like there’s some weird bit of configuration I’ve missed, or perhaps an overlay that I should apply, but I’m really very lost about where to find it.
As a note, using emulation to compile does work, but is obviously slower, and doesn’t seem like it should be necessary here since I specify the target etc correctly.