colin bd3bf6d108 add a #lappy-gpt target which builds a flat, flashable image.

the root part is ext4 instead of btrfs. nixos-generators doesn't support
btrfs. the underlying machinery does though, so we can remove the
middleman in a future patch to achieve that.

2022-05-21 18:05:32 -07:00

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after checking out, drop secrets into secrets/

to build:

nixos-rebuild --flake "/etc/nixos/#uninsane" {build,switch}

query with:

nix flake show

secrets

change files in secrets/. they need to be checked into git with some placeholder text for them to be exposed to the flake, but after that you can set them to their real value and run git update-index --assume-unchanged secrets/*

building images

to build a distributable image (MBR-formatted image with nothing on the first part and only /nix on the second part), use nix build:

nix build "/etc/nixos/#nixosConfigurations.lappy-sd.config.system.build.sdImage"

to build a distributable image (MBR-formatted ISO with the nix store as a squashfs), use nix build:

nix build "/etc/nixos/#nixosConfigurations.lappy-iso.config.system.build.isoImage"

alternatively, boot into a bare NixOS image and run

NIX_PATH=nixpkgs=https://github.com/NixOS/nixpkgs/archive/nixpkgs-unstable.tar.gz nix-shell -p nixos-generators --run "nixos-generate --flake /etc/nixos/#lappy --format raw-efi"

nix build .#lappy-gpt

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secrets

building images

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