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 moots | how do i crossbuild a flake nixosconfiguration to aarch64 from x86 on none nixos? | 16:41:18 |
| moots |
flake.nixosConfigurations."naked-oci" = withSystem "aarch64-linux" (ctx@{ pkgs,config, inputs', ... }:
inputs.nixpkgs.lib.nixosSystem {
# Expose `packages`, `inputs` and `inputs'` as module arguments.
# Use specialArgs permits use in `imports`.
# Note: if you publish modules for reuse, do not rely on specialArgs, but
# on the flake scope instead. See also https://flake.parts/define-module-in-separate-file.html
specialArgs = {
packages = config.packages;
inherit inputs inputs';
pkgs = pkgs.pkgsCross.aarch64-multiplatform;
};
modules = [
# This module could be moved into a separate file; otherwise we might
# as well have used ctx.config.packages directly.
({ config, lib, packages, pkgs, ... }: {
imports = [
inputs.disko.nixosModules.disko
];
nixpkgs.hostPlatform = "aarch64-linux";
...
tried like that error: a 'aarch64-linux' with features {} is required to build '/nix/store/8zwd7397wqs1dsw6j3v11jkfaivlspc3-aarch64-unknown-linux-gnu-binutils-wrapper-2.40.drv', but I am a 'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test, uid-range}
| 16:42:26 |
 @ulli:hrnz.li | just like you would to without flakes. Flakes do nothing for cross-compilation | 16:42:54 |
|  ncfavier changed their profile picture. | 16:43:10 |
| @ulli:hrnz.li | (i.e. use a nixpkgs instantiated with the correct build and host platforms) | 16:43:57 |
| @ulli:hrnz.li | if you don't pass pkgs to nixosSystem, you can use the nixpkgs nixos module for that | 16:44:15 |
| @ulli:hrnz.li | if you do pass pkgs to nixosSystem, this pkgs needs to be correctly instantiated | 16:44:34 |
| moots | hmm guess i have to dig into flake-parts | 16:48:06 |
| moots | cause im not sure where i can edit the pkgs var which it uses | 16:51:10 |
| @ulli:hrnz.li | you want to pass pkgs directly to nixosSystem, and not inside specialArgs (which will probably be ignored) | 16:56:02 |
 @2xsaiko:tchncs.de | moots: hrnz already said it, but specifically you should just be able to set these nixos options and that's all you need, keep the rest like a non-cross system
{
nixpkgs.buildPlatform = "x86_64-linux";
nixpkgs.hostPlatform = "aarch64-linux";
}
| 17:16:39 |
| @2xsaiko:tchncs.de | I feel like setting pkgs like that will prevent e.g. nixpkgs.overlays from working | 17:17:04 |
| @ulli:hrnz.li | yes, when pkgs is passed to nixosSystem, everything in the nixpkgs nixos-module won't have any effect anymore | 17:17:54 |
| moots | In reply to @2xsaiko:tchncs.de
moots: hrnz already said it, but specifically you should just be able to set these nixos options and that's all you need, keep the rest like a non-cross system
{
nixpkgs.buildPlatform = "x86_64-linux";
nixpkgs.hostPlatform = "aarch64-linux";
}
that doesnt work, and i havent figured out yet how to change nixpkgs before its passed to the nixos config when using flake-parts withsystem | 17:21:55 |
| @ulli:hrnz.li | I use https://git.hrnz.li/Ulli/nixos/src/branch/main/hosts/flake-module.nix#L104 and it works like a charm | 17:23:20 |
| @2xsaiko:tchncs.de | oh interesting, is there a reason to explicitly set config like that? I just have these for armv7l: https://git.dblsaiko.net/systems/tree/configurations/turris/default.nix#n35 | 17:27:09 |
| moots | In reply to @ulli:hrnz.li
I use https://git.hrnz.li/Ulli/nixos/src/branch/main/hosts/flake-module.nix#L104 and it works like a charm works i think | 17:27:34 |
| @2xsaiko:tchncs.de | and I assume "doesn't work" means it doesn't try to cross-compile with just those? that's weird | 17:28:25 |
| moots | In reply to @ulli:hrnz.li
I use https://git.hrnz.li/Ulli/nixos/src/branch/main/hosts/flake-module.nix#L104 and it works like a charm * works i think :) | 17:27:36 |
| @2xsaiko:tchncs.de | wait, you're just calling nixpkgs.lib.nixosSystem yourself from what you sent, then this should have nothing to do with flake-parts | 17:31:17 |
| moots | In reply to @2xsaiko:tchncs.de
and I assume "doesn't work" means it doesn't try to cross-compile with just those? that's weird i didnt had it as argument to the function, but as part of the configuration | 17:30:00 |
| @2xsaiko:tchncs.de | I think you'll want to add inherit (pkgs) system; in your nixosSystem call though | 17:31:53 |
| moots | like
had it like
{ nixpkgs.buildPlatform = "x86_64-linux";
nixpkgs.hostPlatform = "aarch64-linux";
Oracle Cloud uses EFI boot
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
}
| 17:30:43 |
