9986bda673
at boot time into a separate script. This will allow us to change the configuration without rebooting (provided that the configuration doesn't have a different kernel, init, etc.). svn path=/nixos/trunk/; revision=7294
365 lines
9.1 KiB
Nix
365 lines
9.1 KiB
Nix
{ system ? __currentSystem
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, autoDetectRootDevice ? false
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, rootDevice ? ""
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, rootLabel ? ""
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, stage2Init
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, readOnlyRoot
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}:
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rec {
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pkgs = import ../pkgs/top-level/all-packages.nix {inherit system;};
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pkgsDiet = import ../pkgs/top-level/all-packages.nix {
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inherit system;
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bootStdenv = pkgs.useDietLibC pkgs.stdenv;
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};
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pkgsStatic = import ../pkgs/top-level/all-packages.nix {
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inherit system;
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bootStdenv = pkgs.makeStaticBinaries pkgs.stdenv;
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};
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stdenvLinuxStuff = import ../pkgs/stdenv/linux {
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system = pkgs.stdenv.system;
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allPackages = import ../pkgs/top-level/all-packages.nix;
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};
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nix = pkgs.nixUnstable; # we need the exportReferencesGraph feature
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# Splash configuration.
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splashThemes = import ./splash-themes.nix {
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inherit (pkgs) fetchurl;
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};
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# Determine the set of modules that we need to mount the root FS.
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modulesClosure = import ../helpers/modules-closure.nix {
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inherit (pkgs) stdenv kernel module_init_tools;
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rootModules = ["ide-cd" "ide-disk" "ide-generic"];
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};
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# Some additional utilities needed in stage 1, notably mount. We
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# don't want to bring in all of util-linux, so we just copy what we
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# need.
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extraUtils = pkgs.stdenv.mkDerivation {
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name = "extra-utils";
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builder = builtins.toFile "builder.sh" "
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source $stdenv/setup
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ensureDir $out/bin
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cp $utillinux/bin/mount $utillinux/bin/umount $utillinux/sbin/pivot_root $out/bin
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cp -p $e2fsprogs/sbin/fsck* $e2fsprogs/sbin/e2fsck $out/bin
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cp $splashutils/bin/splash_helper $out/bin
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nuke-refs $out/bin/*
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";
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buildInputs = [pkgs.nukeReferences];
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inherit (pkgsStatic) utillinux;
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inherit (pkgs) splashutils;
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e2fsprogs = pkgs.e2fsprogsDiet;
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};
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# The init script of boot stage 1 (loading kernel modules for
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# mounting the root FS).
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bootStage1 = import ../boot/boot-stage-1.nix {
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inherit (pkgs) genericSubstituter;
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inherit (pkgsDiet) module_init_tools;
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inherit extraUtils;
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inherit autoDetectRootDevice rootDevice rootLabel;
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inherit stage2Init;
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modules = modulesClosure;
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shell = stdenvLinuxStuff.bootstrapTools.bash;
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staticTools = stdenvLinuxStuff.staticTools;
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};
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# The closure of the init script of boot stage 1 is what we put in
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# the initial RAM disk.
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initialRamdisk = import ../boot/make-initrd.nix {
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inherit (pkgs) stdenv cpio;
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contents = [
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{ object = bootStage1;
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symlink = "/init";
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}
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{ object = extraUtils;
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suffix = "/bin/splash_helper";
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symlink = "/sbin/splash_helper";
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}
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{ object = import ../helpers/unpack-theme.nix {
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inherit (pkgs) stdenv;
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theme = splashThemes.splashScreen;
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};
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symlink = "/etc/splash";
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}
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];
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};
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# The installer.
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nixosInstaller = import ../installer/nixos-installer.nix {
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inherit (pkgs) stdenv genericSubstituter;
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inherit nix;
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shell = pkgs.bash + "/bin/sh";
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};
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# The services (Upstart) configuration for the system.
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upstartJobs = import ../upstart-jobs/gather.nix {
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inherit (pkgs) stdenv;
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jobs = map makeJob [
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# Syslogd.
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(import ../upstart-jobs/syslogd.nix {
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inherit (pkgs) sysklogd;
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})
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# Hardware scan; loads modules for PCI devices.
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(import ../upstart-jobs/hardware-scan.nix {
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inherit (pkgs) kernel module_init_tools;
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})
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# Network interfaces.
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(import ../upstart-jobs/network-interfaces.nix {
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inherit (pkgs) nettools kernel module_init_tools;
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})
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# DHCP client.
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(import ../upstart-jobs/dhclient.nix {
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dhcp = pkgs.dhcpWrapper;
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})
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# SSH daemon.
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(import ../upstart-jobs/sshd.nix {
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inherit (pkgs) openssh;
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})
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# Nix daemon - required for multi-user Nix.
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(import ../upstart-jobs/nix-daemon.nix {
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inherit nix;
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})
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# X server.
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(import ../upstart-jobs/xserver.nix {
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inherit (pkgs) genericSubstituter;
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inherit (pkgs.xorg) xorgserver xf86inputkeyboard xf86inputmouse xf86videovesa;
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})
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# Transparent TTY backgrounds.
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(import ../upstart-jobs/tty-backgrounds.nix {
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inherit (pkgs) stdenv splashutils;
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backgrounds = splashThemes.ttyBackgrounds;
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})
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# Handles the maintenance/stalled event (single-user shell).
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(import ../upstart-jobs/maintenance-shell.nix {
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inherit (pkgs) bash;
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})
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# Ctrl-alt-delete action.
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(import ../upstart-jobs/ctrl-alt-delete.nix)
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]
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# Handles the reboot/halt events.
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++ (map
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(event: makeJob (import ../upstart-jobs/halt.nix {
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inherit (pkgs) bash;
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inherit event;
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}))
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["reboot" "halt" "system-halt" "power-off"]
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)
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# The terminals on ttyX.
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++ (map
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(ttyNumber: makeJob (import ../upstart-jobs/mingetty.nix {
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mingetty = pkgs.mingettyWrapper;
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inherit ttyNumber;
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}))
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[1 2 3 4 5 6]
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)
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# For the builtin logd job.
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++ [pkgs.upstart];
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};
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etc = import ../helpers/make-etc.nix {
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inherit (pkgs) stdenv;
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configFiles = [
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{ # TCP/UDP port assignments.
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source = pkgs.iana_etc + "/etc/services";
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target = "services";
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}
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{ # IP protocol numbers.
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source = pkgs.iana_etc + "/etc/protocols";
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target = "protocols";
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}
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{ # Hostname-to-IP mappings.
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source = ./etc/hosts;
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target = "hosts";
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}
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{ # Name Service Switch configuration file. Required by the C library.
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source = ./etc/nsswitch.conf;
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target = "nsswitch.conf";
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}
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{ # Configuration file for the system logging daemon.
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source = ./etc/syslog.conf;
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target = "syslog.conf";
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}
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{ # Friendly greeting on the virtual consoles.
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source = ./etc/issue;
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target = "issue";
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}
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{ # Configuration for pwdutils (login, passwd, useradd, etc.).
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# You cannot login without it!
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source = ./etc/login.defs;
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target = "login.defs";
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}
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{ # SSH daemon configuration.
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source = ./etc/sshd_config;
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target = "ssh/sshd_config";
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}
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{ # The Upstart events defined above.
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source = upstartJobs + "/etc/event.d";
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target = "event.d";
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}
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];
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};
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makeJob = import ../upstart-jobs/make-job.nix {
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inherit (pkgs) stdenv;
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};
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setuidWrapper = import ../helpers/setuid {
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inherit (pkgs) stdenv;
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wrapperDir = "/var/setuid-wrappers";
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};
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# The packages you want in the boot environment.
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fullPath = [
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pkgs.bash
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pkgs.bzip2
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pkgs.coreutils
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pkgs.cpio
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pkgs.curl
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pkgs.e2fsprogs
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pkgs.findutils
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pkgs.gnugrep
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pkgs.gnused
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pkgs.gnutar
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pkgs.grub
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pkgs.gzip
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pkgs.iputils
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pkgs.less
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pkgs.module_init_tools
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pkgs.nano
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pkgs.netcat
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pkgs.nettools
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pkgs.perl
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pkgs.procps
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pkgs.rsync
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pkgs.shadowutils
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pkgs.strace
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pkgs.sysklogd
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pkgs.udev
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pkgs.upstart
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pkgs.utillinux
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# pkgs.vim
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nix
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nixosInstaller
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setuidWrapper
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];
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# The script that activates the configuration, i.e., it sets up
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# /etc, accounts, etc. It doesn't do anything that can only be done
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# at boot time (such as start `init').
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activateConfiguration = pkgs.genericSubstituter {
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src = ./activate-configuration.sh;
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isExecutable = true;
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shell = pkgs.bash + "/bin/sh";
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inherit etc;
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inherit readOnlyRoot;
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inherit (pkgs) kernel;
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hostName = config.get ["networking" "hostname"];
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wrapperDir = setuidWrapper.wrapperDir;
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accounts = ../helpers/accounts.sh;
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# We don't want to put all of `startPath' and `path' in $PATH, since
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# then we get an embarrassingly long $PATH. So use the user
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# environment builder to make a directory with symlinks to those
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# packages.
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fullPath = pkgs.buildEnv {
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name = "boot-stage-2-path";
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paths = fullPath;
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pathsToLink = ["/bin" "/sbin" "/man/man1" "/share/man/man1"];
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ignoreCollisions = true;
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};
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};
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# The init script of boot stage 2, which is supposed to do
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# everything else to bring up the system.
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bootStage2 = import ../boot/boot-stage-2.nix {
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inherit (pkgs) genericSubstituter coreutils findutils
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gnugrep utillinux kernel udev upstart;
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shell = pkgs.bash + "/bin/sh";
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inherit readOnlyRoot;
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inherit activateConfiguration;
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};
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lib = pkgs.library;
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config = rec {
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# The user configuration.
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config = {
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networking = {
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hostname = "nixos";
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};
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};
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# The option declarations, i.e., option names with defaults and
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# documentation.
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declarations = import ./options.nix;
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# Get the option named `name' from the user configuration, using
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# its default value if it's not defined.
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get = name:
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let
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sameName = lib.filter (opt: lib.eqLists opt.name name) declarations;
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default =
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if sameName == []
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then abort ("Undeclared option `" + printName name + "'.")
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else if !builtins.head sameName ? default
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then abort ("Option `" + printName name + "' has no default.")
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else (builtins.head sameName).default;
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in lib.getAttr name default config;
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printName = name: lib.concatStrings (lib.intersperse "." name);
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};
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}
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