pyrox.dev
1# This module contains the basic configuration for building a NixOS
2# tarball for the sheevaplug.
3
4{ config, lib, pkgs, ... }:
5
6with lib;
7
8let
9
10 # A dummy /etc/nixos/configuration.nix in the booted CD that
11 # rebuilds the CD's configuration (and allows the configuration to
12 # be modified, of course, providing a true live CD). Problem is
13 # that we don't really know how the CD was built - the Nix
14 # expression language doesn't allow us to query the expression being
15 # evaluated. So we'll just hope for the best.
16 dummyConfiguration = pkgs.writeText "configuration.nix"
17 ''
18 { config, pkgs, ... }:
19
20 {
21 # Add your own options below and run "nixos-rebuild switch".
22 # E.g.,
23 # services.openssh.enable = true;
24 }
25 '';
26
27
28 pkgs2storeContents = l : map (x: { object = x; symlink = "none"; }) l;
29
30 # A clue for the kernel loading
31 kernelParams = pkgs.writeText "kernel-params.txt" ''
32 Kernel Parameters:
33 init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}
34 '';
35
36
37in
38
39{
40 imports = [ ./system-tarball.nix ];
41
42 # Disable some other stuff we don't need.
43 security.sudo.enable = false;
44
45 # Include only the en_US locale. This saves 75 MiB or so compared to
46 # the full glibcLocales package.
47 i18n.supportedLocales = ["en_US.UTF-8/UTF-8" "en_US/ISO-8859-1"];
48
49 # Include some utilities that are useful for installing or repairing
50 # the system.
51 environment.systemPackages =
52 [ pkgs.subversion # for nixos-checkout
53 pkgs.w3m # needed for the manual anyway
54 pkgs.ddrescue
55 pkgs.ccrypt
56 pkgs.cryptsetup # needed for dm-crypt volumes
57
58 # Some networking tools.
59 pkgs.sshfsFuse
60 pkgs.socat
61 pkgs.screen
62 pkgs.wpa_supplicant # !!! should use the wpa module
63
64 # Hardware-related tools.
65 pkgs.sdparm
66 pkgs.hdparm
67 pkgs.dmraid
68
69 # Tools to create / manipulate filesystems.
70 pkgs.btrfsProgs
71
72 # Some compression/archiver tools.
73 pkgs.unzip
74 pkgs.zip
75 pkgs.xz
76 pkgs.dar # disk archiver
77
78 # Some editors.
79 pkgs.nvi
80 pkgs.bvi # binary editor
81 pkgs.joe
82 ];
83
84 boot.loader.grub.enable = false;
85 boot.loader.generationsDir.enable = false;
86 system.boot.loader.kernelFile = "uImage";
87
88 boot.initrd.availableKernelModules =
89 [ "mvsdio" "mmc_block" "reiserfs" "ext3" "ums-cypress" "rtc_mv"
90 "ext4" ];
91
92 boot.postBootCommands =
93 ''
94 mkdir -p /mnt
95
96 cp ${dummyConfiguration} /etc/nixos/configuration.nix
97 '';
98
99 boot.initrd.extraUtilsCommands =
100 ''
101 copy_bin_and_libs ${pkgs.utillinux}/sbin/hwclock
102 '';
103
104 boot.initrd.postDeviceCommands =
105 ''
106 hwclock -s
107 '';
108
109 boot.kernelParams =
110 [
111 "selinux=0"
112 "console=tty1"
113 # "console=ttyS0,115200n8" # serial console
114 ];
115
116 boot.kernelPackages = pkgs.linuxPackages_3_4;
117
118 boot.supportedFilesystems = [ "reiserfs" ];
119
120 /* fake entry, just to have a happy stage-1. Users
121 may boot without having stage-1 though */
122 fileSystems = [
123 { mountPoint = "/";
124 device = "/dev/something";
125 }
126 ];
127
128 services.mingetty = {
129 # Some more help text.
130 helpLine = ''
131 Log in as "root" with an empty password. ${
132 if config.services.xserver.enable then
133 "Type `start xserver' to start\nthe graphical user interface."
134 else ""
135 }
136 '';
137 };
138
139 # Setting vesa, we don't get the nvidia driver, which can't work in arm.
140 services.xserver.videoDrivers = [ "vesa" ];
141
142 services.nixosManual.enable = false;
143
144 # Include the firmware for various wireless cards.
145 networking.enableRalinkFirmware = true;
146 networking.enableIntel2200BGFirmware = true;
147
148 # To speed up further installation of packages, include the complete stdenv
149 # in the Nix store of the tarball.
150 tarball.storeContents = pkgs2storeContents [ pkgs.stdenv ];
151 tarball.contents = [
152 { source = kernelParams;
153 target = "/kernelparams.txt";
154 }
155 { source = config.boot.kernelPackages.kernel + "/" + config.system.boot.loader.kernelFile;
156 target = "/boot/" + config.system.boot.loader.kernelFile;
157 }
158 { source = pkgs.ubootSheevaplug;
159 target = "/boot/uboot";
160 }
161 ];
162
163 # Allow sshd to be started manually through "start sshd". It should
164 # not be started by default on the installation CD because the
165 # default root password is empty.
166 services.openssh.enable = true;
167 jobs.openssh.startOn = lib.mkOverride 50 "";
168
169 # cpufrequtils fails to build on non-pc
170 powerManagement.enable = false;
171
172 nixpkgs.config = {
173 platform = pkgs.platforms.sheevaplug;
174 };
175}