114 lines
2.8 KiB
Nix
114 lines
2.8 KiB
Nix
# This module contains the basic configuration for building a NixOS
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# installation CD.
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{ config, pkgs, ... }:
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with pkgs.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 base through NFS
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KERNEL bzImage
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append initrd=initrd ip=dhcp tnfsroot=IPADDR:/home/pcroot systemConfig=${config.system.build.toplevel} init=${config.system.build.toplevel}/initrd
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label memtest
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MENU LABEL ^Memtest86+
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KERNEL memtest.bin
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'';
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in
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{
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require = [
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./system-tarball.nix
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# Profiles of this basic installation.
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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 pkgs.klibc pkgs.klibcShrunk ];
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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 = "${pkgs.memtest86}/memtest.bin";
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target = "/boot/memtest.bin";
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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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jobs.openssh.startOn = pkgs.lib.mkOverrideTemplate 50 {} "";
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boot.initrd.postMountCommands = ''
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for o in $(cat /proc/cmdline); do
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case $o in
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tnfsroot=*)
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set -- $(IFS==; echo $o)
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# TODO: It cannot mount nfs, as maybe it cannot find 'mount.nfs'
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mount $2 /mnt-root
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;;
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*) ;;
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esac
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done
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'';
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boot.kernelPackages = pkgs.linuxPackages_2_6_39;
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nixpkgs.config = {
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packageOverrides = p: rec {
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linux_2_6_39 = p.linux_2_6_39.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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# Enable nfs root boot
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IP_PNP y
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IP_PNP_DHCP y
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NFS_FS 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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