forked from mirrors/nixpkgs
119c8f91e7
Setting nixosVersion to something custom is useful for meaningful GRUB menus and /nix/store paths, but actuallly changing it rebulids the whole system path (because of `nixos-version` script and manual pages). Also, changing it is not a particularly good idea because you can then be differentitated from other NixOS users by a lot of programs that read /etc/os-release. This patch introduces an alternative option that does all you want from nixosVersion, but rebuilds only the very top system level and /etc while using your label in the names of system /nix/store paths, GRUB and other boot loaders' menus, getty greetings and so on.
79 lines
2.3 KiB
Nix
79 lines
2.3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.virtualbox;
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in {
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options = {
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virtualbox = {
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baseImageSize = mkOption {
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type = types.int;
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default = 10 * 1024;
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description = ''
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The size of the VirtualBox base image in MiB.
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'';
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};
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};
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};
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config = {
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system.build.virtualBoxImage = import ../../lib/make-disk-image.nix {
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inherit pkgs lib config;
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partitioned = true;
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diskSize = cfg.baseImageSize;
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configFile = pkgs.writeText "configuration.nix"
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''
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{
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imports = [ <nixpkgs/nixos/modules/virtualisation/virtualbox-image.nix> ];
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}
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'';
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postVM =
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''
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echo "creating VirtualBox disk image..."
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${pkgs.vmTools.qemu}/bin/qemu-img convert -f raw -O vdi $diskImage $out/disk.vdi
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rm $diskImage
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'';
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};
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system.build.virtualBoxOVA = pkgs.runCommand "virtualbox-ova"
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{ buildInputs = [ pkgs.linuxPackages.virtualbox ];
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vmName = "NixOS ${config.system.nixosLabel} (${pkgs.stdenv.system})";
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fileName = "nixos-image-${config.system.nixosLabel}-${pkgs.stdenv.system}.ova";
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}
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''
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echo "creating VirtualBox VM..."
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export HOME=$PWD
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VBoxManage createvm --name "$vmName" --register \
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--ostype ${if pkgs.stdenv.system == "x86_64-linux" then "Linux26_64" else "Linux26"}
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VBoxManage modifyvm "$vmName" \
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--memory 1536 --acpi on --vram 32 \
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${optionalString (pkgs.stdenv.system == "i686-linux") "--pae on"} \
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--nictype1 virtio --nic1 nat \
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--audiocontroller ac97 --audio alsa \
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--rtcuseutc on \
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--usb on --mouse usbtablet
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VBoxManage storagectl "$vmName" --name SATA --add sata --portcount 4 --bootable on --hostiocache on
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VBoxManage storageattach "$vmName" --storagectl SATA --port 0 --device 0 --type hdd \
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--medium ${config.system.build.virtualBoxImage}/disk.vdi
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echo "exporting VirtualBox VM..."
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mkdir -p $out
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VBoxManage export "$vmName" --output "$out/$fileName"
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'';
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fileSystems."/".device = "/dev/disk/by-label/nixos";
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boot.loader.grub.device = "/dev/sda";
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virtualisation.virtualbox.guest.enable = true;
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};
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}
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