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readme tweaks

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Travis Staton 2024-11-12 12:36:49 -05:00
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README.md
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@ -19,64 +19,7 @@ and `rpi/config.nix`. The other modules are mostly wrappers that set
## Example
See the `rpi-example` config in this flake for a CI-checked example.
```nix
{
description = "raspberry-pi-nix example";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
raspberry-pi-nix.url = "github:nix-community/raspberry-pi-nix";
};
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 = "America/New_York";
users.users.root.initialPassword = "root";
networking = {
hostName = "basic-example";
useDHCP = false;
interfaces = {
wlan0.useDHCP = true;
eth0.useDHCP = true;
};
};
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-example = nixosSystem {
system = "aarch64-linux";
modules = [ raspberry-pi-nix.nixosModules.raspberry-pi basic-config ];
};
};
};
}
```
See the `rpi-example` config in this flake for an example config built by CI.
## Using the provided cache to avoid compiling linux
This repo uses the raspberry pi linux kernel fork, and compiling linux takes a
@ -87,10 +30,10 @@ to use this cache.
## Building an sd-card image
An image suitable for flashing to an sd-card can be found at the
attribute `config.system.build.sdImage`. For example, if you wanted to
build an image for `rpi-example` in the above configuration
example you could run:
Include the provided `sd-image` nixos module this flake provides, then an image
suitable for flashing to an sd-card can be found at the attribute
`config.system.build.sdImage`. For example, if you wanted to build an image for
`rpi-example` in the above configuration example you could run:
```
nix build '.#nixosConfigurations.rpi-example.config.system.build.sdImage'