102 lines
2.6 KiB
Nix
102 lines
2.6 KiB
Nix
let
|
|
|
|
# The label used to identify the installation CD.
|
|
cdromLabel = "NIXOS";
|
|
|
|
in
|
|
|
|
# Build boot scripts for the CD that find the CD-ROM automatically.
|
|
with import ./boot-environment.nix {
|
|
autoDetectRootDevice = true;
|
|
rootLabel = cdromLabel;
|
|
stage2Init = "/init";
|
|
readOnlyRoot = true;
|
|
};
|
|
|
|
|
|
rec {
|
|
|
|
inherit nixosInstaller bootStage1; # !!! debug
|
|
|
|
|
|
# Since the CD is read-only, the mount points must be on disk.
|
|
cdMountPoints = pkgs.stdenv.mkDerivation {
|
|
name = "mount-points";
|
|
builder = builtins.toFile "builder.sh" "
|
|
source $stdenv/setup
|
|
ensureDir $out
|
|
cd $out
|
|
mkdir proc sys tmp etc dev var mnt nix nix/var
|
|
touch $out/${cdromLabel}
|
|
";
|
|
};
|
|
|
|
|
|
# We need a copy of the Nix expressions for Nixpkgs and NixOS on the
|
|
# CD. We put them in a tarball because accessing that many small
|
|
# files from a slow device like a CD-ROM takes too long.
|
|
makeTarball = tarName: input: pkgs.stdenv.mkDerivation {
|
|
name = "tarball";
|
|
inherit tarName input;
|
|
builder = builtins.toFile "builder.sh" "
|
|
source $stdenv/setup
|
|
ensureDir $out
|
|
(cd $input && tar cvfj $out/$tarName . \\
|
|
--exclude '*~' --exclude '.svn' \\
|
|
--exclude 'pkgs' --exclude 'result')
|
|
";
|
|
};
|
|
|
|
|
|
# Put the current directory in the tarball. !!! This gives us a lot
|
|
# of crap (like .svn if this is a working copy). An "svn export"
|
|
# would be better, but that's impure.
|
|
nixosTarball = makeTarball "nixos.tar.bz2" ./.;
|
|
|
|
|
|
nixpkgsTarball = pkgs.fetchurl {
|
|
url = http://nix.cs.uu.nl/dist/nix/nixpkgs-0.11pre7060/nixpkgs-0.11pre7060.tar.bz2;
|
|
md5 = "67163e7a71f7b8cb01461e1d0467a6e1";
|
|
};
|
|
|
|
|
|
# Create an ISO image containing the isolinux boot loader, the
|
|
# kernel, the initrd produced above, and the closure of the stage 2
|
|
# init.
|
|
rescueCD = import ./make-iso9660-image.nix {
|
|
inherit (pkgs) stdenv cdrtools;
|
|
isoName = "nixos.iso";
|
|
|
|
contents = [
|
|
{ source = pkgs.syslinux + "/lib/syslinux/isolinux.bin";
|
|
target = "isolinux/isolinux.bin";
|
|
}
|
|
{ source = ./isolinux.cfg;
|
|
target = "isolinux/isolinux.cfg";
|
|
}
|
|
{ source = pkgs.kernel + "/vmlinuz";
|
|
target = "isolinux/vmlinuz";
|
|
}
|
|
{ source = initialRamdisk + "/initrd";
|
|
target = "isolinux/initrd";
|
|
}
|
|
{ source = cdMountPoints;
|
|
target = "/";
|
|
}
|
|
{ source = nixosTarball + "/" + nixosTarball.tarName;
|
|
target = "/" + nixosTarball.tarName;
|
|
}
|
|
{ source = nixpkgsTarball;
|
|
target = "/nixpkgs.tar.bz2";
|
|
}
|
|
];
|
|
|
|
init = bootStage2;
|
|
|
|
bootable = true;
|
|
bootImage = "isolinux/isolinux.bin";
|
|
};
|
|
|
|
|
|
}
|