163 lines
3.9 KiB
Nix
163 lines
3.9 KiB
Nix
rec {
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nixpkgsRel = "nixpkgs-0.11pre7628";
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configuration = {
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boot = {
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autoDetectRootDevice = true;
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readOnlyRoot = true;
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# The label used to identify the installation CD.
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rootLabel = "NIXOS";
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initrd = {
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enableSplashScreen = pkgs.stdenv.system != "x86_64-linux";
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};
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};
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services = {
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sshd = {
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enable = false;
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};
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xserver = {
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enable = false;
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};
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# Allow the user to do something useful on tty8 while waiting
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# for the installation to finish.
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extraJobs = [
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{ name = "rogue";
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job = "
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start on udev
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stop on shutdown
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respawn ${pkgs.rogue}/bin/rogue < /dev/tty8 > /dev/tty8 2>&1
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";
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}
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];
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# And a background to go with that.
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ttyBackgrounds = {
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enable = pkgs.stdenv.system != "x86_64-linux";
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specificThemes = [
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{ tty = 8;
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theme = pkgs.fetchurl {
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url = http://www.bootsplash.de/files/themes/Theme-GNU.tar.bz2;
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md5 = "61969309d23c631e57b0a311102ef034";
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};
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}
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];
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};
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};
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fonts = {
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enableFontConfig = false;
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};
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installer = {
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nixpkgsURL = http://nix.cs.uu.nl/dist/nix/ + nixpkgsRel;
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};
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};
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system = import ../system/system.nix {
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inherit configuration;
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stage2Init = "/init";
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};
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pkgs = system.pkgs;
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# Since the CD is read-only, the mount points must be on disk.
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cdMountPoints = pkgs.runCommand "mount-points" {} "
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ensureDir $out
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cd $out
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mkdir proc sys tmp etc dev var mnt nix nix/var root
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touch $out/${configuration.boot.rootLabel}
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";
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# We need a copy of the Nix expressions for Nixpkgs and NixOS on the
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# CD. We put them in a tarball because accessing that many small
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# files from a slow device like a CD-ROM takes too long.
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makeTarball = tarName: input: pkgs.runCommand "tarball" {inherit tarName;} "
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ensureDir $out
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(cd ${input} && tar cvfj $out/${tarName} . \\
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--exclude '*~' \\
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--exclude 'pkgs' --exclude 'result')
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";
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# Put the current directory in a tarball (making sure to filter
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# out crap like the .svn directories).
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nixosTarball =
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let filter = name: type:
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let base = baseNameOf (toString name);
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in base != ".svn" && base != "result";
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in
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makeTarball "nixos.tar.bz2" (builtins.filterSource filter ./..);
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# Get a recent copy of Nixpkgs.
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nixpkgsTarball = pkgs.fetchurl {
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url = configuration.installer.nixpkgsURL + "/" + nixpkgsRel + ".tar.bz2";
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md5 = "e7fe1793e69ff5072eb5987e7b7ccd47";
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};
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# The configuration file for isolinux.
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isolinuxCfg = pkgs.writeText "isolinux.cfg" "
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default linux
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prompt 1
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timeout 60
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label linux
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kernel vmlinuz
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append initrd=initrd ${toString (system.config.get ["boot" "kernelParams"])}
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";
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# Create an ISO image containing the isolinux boot loader, the
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# kernel, the initrd produced above, and the closure of the stage 2
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# init.
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rescueCD = import ../helpers/make-iso9660-image.nix {
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inherit (pkgs) stdenv cdrtools;
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isoName = "nixos.iso";
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contents = [
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{ source = pkgs.syslinux + "/lib/syslinux/isolinux.bin";
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target = "isolinux/isolinux.bin";
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}
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{ source = isolinuxCfg;
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target = "isolinux/isolinux.cfg";
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}
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{ source = pkgs.kernel + "/vmlinuz";
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target = "isolinux/vmlinuz";
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}
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{ source = system.initialRamdisk + "/initrd";
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target = "isolinux/initrd";
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}
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{ source = cdMountPoints;
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target = "/";
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}
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{ source = nixosTarball + "/" + nixosTarball.tarName;
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target = "/" + nixosTarball.tarName;
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}
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{ source = nixpkgsTarball;
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target = "/nixpkgs.tar.bz2";
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}
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];
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init = system.bootStage2;
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bootable = true;
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bootImage = "isolinux/isolinux.bin";
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};
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}
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