164 lines
4.6 KiB
Nix
164 lines
4.6 KiB
Nix
# This module contains the basic configuration for building a NixOS
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# tarball, that can directly boot, maybe using PXE or unpacking on a fs.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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pkgs2storeContents = l : map (x: { object = x; symlink = "none"; }) l;
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# For PXE kernel loading
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pxeconfig = pkgs.writeText "pxeconfig-default" ''
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default menu.c32
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prompt 0
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label bootlocal
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menu default
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localboot 0
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timeout 80
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TOTALTIMEOUT 9000
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label nixos
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MENU LABEL ^NixOS using nfsroot
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KERNEL bzImage
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append ip=dhcp nfsroot=/home/pcroot systemConfig=${config.system.build.toplevel} init=${config.system.build.toplevel}/init rw
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# I don't know how to make this boot with nfsroot (using the initrd)
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label nixos_initrd
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MENU LABEL NixOS booting the poor ^initrd.
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KERNEL bzImage
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append initrd=initrd ip=dhcp nfsroot=/home/pcroot systemConfig=${config.system.build.toplevel} init=${config.system.build.toplevel}/init rw
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label memtest
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MENU LABEL ^${pkgs.memtest86.name}
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KERNEL memtest
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'';
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dhcpdExampleConfig = pkgs.writeText "dhcpd.conf-example" ''
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# Example configuration for booting PXE.
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allow booting;
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allow bootp;
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# Adapt this to your network configuration.
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option domain-name "local";
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option subnet-mask 255.255.255.0;
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option broadcast-address 192.168.1.255;
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option domain-name-servers 192.168.1.1;
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option routers 192.168.1.1;
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# PXE-specific configuration directives...
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# Some BIOS don't accept slashes for paths inside the tftp servers,
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# and will report Access Violation if they see slashes.
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filename "pxelinux.0";
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# For the TFTP and NFS root server. Set the IP of your server.
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next-server 192.168.1.34;
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subnet 192.168.1.0 netmask 255.255.255.0 {
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range 192.168.1.50 192.168.1.55;
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}
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'';
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readme = ./system-tarball-pc-readme.txt;
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in
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{
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imports =
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[ ./system-tarball.nix
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# Profiles of this basic installation.
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../../profiles/all-hardware.nix
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../../profiles/base.nix
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../../profiles/installation-device.nix
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];
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# To speed up further installation of packages, include the complete stdenv
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# in the Nix store of the tarball.
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tarball.storeContents = pkgs2storeContents [ pkgs.stdenv ];
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tarball.contents =
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[ { source = config.boot.kernelPackages.kernel + "/" + config.system.boot.loader.kernelFile;
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target = "/boot/" + config.system.boot.loader.kernelFile;
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}
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{ source = "${pkgs.syslinux}/share/syslinux/pxelinux.0";
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target = "/boot/pxelinux.0";
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}
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{ source = "${pkgs.syslinux}/share/syslinux/menu.c32";
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target = "/boot/menu.c32";
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}
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{ source = pxeconfig;
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target = "/boot/pxelinux.cfg/default";
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}
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{ source = readme;
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target = "/readme.txt";
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}
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{ source = dhcpdExampleConfig;
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target = "/boot/dhcpd.conf-example";
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}
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{ source = "${pkgs.memtest86}/memtest.bin";
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# We can't leave '.bin', because pxelinux interprets this specially,
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# and it would not load the image fine.
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# http://forum.canardpc.com/threads/46464-0104-when-launched-via-pxe
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target = "/boot/memtest";
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}
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];
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# Allow sshd to be started manually through "start sshd". It should
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# not be started by default on the installation CD because the
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# default root password is empty.
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services.openssh.enable = true;
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systemd.services.openssh.wantedBy = lib.mkOverride 50 [];
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# To be able to use the systemTarball to catch troubles.
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boot.crashDump = {
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enable = true;
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kernelPackages = pkgs.linuxPackages_3_4;
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};
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# No grub for the tarball.
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boot.loader.grub.enable = false;
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/* fake entry, just to have a happy stage-1. Users
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may boot without having stage-1 though */
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fileSystems = [
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{ mountPoint = "/";
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device = "/dev/something";
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}
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];
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nixpkgs.config = {
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packageOverrides = p: rec {
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linux_3_4 = p.linux_3_4.override {
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extraConfig = ''
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# Enable drivers in kernel for most NICs.
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E1000 y
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# E1000E y
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# ATH5K y
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8139TOO y
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NE2K_PCI y
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ATL1 y
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ATL1E y
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ATL1C y
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VORTEX y
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VIA_RHINE y
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R8169 y
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# Enable nfs root boot
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UNIX y # http://www.linux-mips.org/archives/linux-mips/2006-11/msg00113.html
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IP_PNP y
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IP_PNP_DHCP y
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FSCACHE y
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NFS_FS y
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NFS_FSCACHE y
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ROOT_NFS y
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# Enable devtmpfs
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DEVTMPFS y
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DEVTMPFS_MOUNT y
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'';
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};
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};
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};
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}
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