1dd3162d7c
What I want with this derivation is to allow the sheevaplug nixos to build a tarball with all the needed files to boot. Then, this can be unpacked into an SD card, or into a NFS/TFTP server, and then the user can boot the system with help of the uboot console. By now, I have only tried to build the tarball in a PC, in order to develop the nix expressions quicker. There is nothing written specialy for the Sheevaplug in all this, by now. svn path=/nixos/trunk/; revision=20035
127 lines
3.5 KiB
Nix
127 lines
3.5 KiB
Nix
# This module creates a bootable ISO image containing the given NixOS
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# configuration. The derivation for the ISO image will be placed in
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# config.system.build.tarball.
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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options = {
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tarball.contents = mkOption {
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example =
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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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description = ''
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This option lists files to be copied to fixed locations in the
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generated ISO image.
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'';
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};
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tarball.storeContents = mkOption {
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example = [pkgs.stdenv];
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description = ''
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This option lists additional derivations to be included in the
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Nix store in the generated ISO image.
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'';
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};
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};
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# A clue for the uboot loading
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ubootKernelParams = pkgs.writeText "uboot-kernel-params.txt" ''
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Kernel Parameters:
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init=${config.system.build.bootStage2}
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systemConfig=${config.system.build.toplevel}
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${toString config.boot.kernelParams}
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'';
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versionFile = pkgs.writeText "nixos-version" config.system.nixosVersion;
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in
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{
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require = options;
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# Don't build the GRUB menu builder script, since we don't need it
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# here and it causes a cyclic dependency.
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boot.loader.grub.enable = false;
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# !!! Hack - attributes expected by other modules.
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system.build.menuBuilder = "true";
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system.boot.loader.kernelFile = "vmlinuz";
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environment.systemPackages = [ pkgs.grub2 ];
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# In stage 1 of the boot, mount the CD/DVD as the root FS by label
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# so that we don't need to know its device.
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fileSystems =
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[ { mountPoint = "/";
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label = "rootfs";
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}
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];
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# boot.initrd.availableKernelModules = [ "mvsdio" "mmc_block" "reiserfs" "ext3" "ext4" ];
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# boot.initrd.kernelModules = [ "rtc_mv" ];
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# Closures to be copied to the Nix store on the CD, namely the init
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# script and the top-level system configuration directory.
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tarball.storeContents =
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[ {
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object = config.system.build.bootStage2;
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symlink = "none";
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}
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{
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object = config.system.build.toplevel;
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symlink = "/var/run/current-system";
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}
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];
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# Individual files to be included on the CD, outside of the Nix
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# store on the CD.
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tarball.contents =
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[ { source = config.boot.kernelPackages.kernel + "/vmlinuz";
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target = "/boot/vmlinuz";
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}
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{ source = config.system.build.initialRamdisk + "/initrd";
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target = "/boot/initrd";
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}
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{ source = "${pkgs.grub2}/share/grub/unicode.pf2";
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target = "/boot/grub/unicode.pf2";
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}
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{ source = config.boot.loader.grub.splashImage;
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target = "/boot/grub/splash.png";
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}
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/*
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{ source = pkgs.ubootKernelParams;
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target = "/uboot-kernelparams.txt";
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}
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*/
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{ source = versionFile;
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target = "/nixos-version.txt";
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}
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];
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# Create the tarball
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system.build.tarball = import ../../../lib/make-system-tarball.nix {
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inherit (pkgs) stdenv perl xz pathsFromGraph;
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inherit (config.tarball) contents storeContents;
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};
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boot.postBootCommands =
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''
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# After booting, register the contents of the Nix store on the
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# CD in the Nix database in the tmpfs.
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${config.environment.nix}/bin/nix-store --load-db < /nix/store/nix-path-registration
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# nixos-rebuild also requires a "system" profile and an
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# /etc/NIXOS tag.
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touch /etc/NIXOS
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${config.environment.nix}/bin/nix-env -p /nix/var/nix/profiles/system --set /var/run/current-system
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'';
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}
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