68 lines
1.5 KiB
Nix
68 lines
1.5 KiB
Nix
let
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# The label used to identify the installation CD.
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cdromLabel = "NIXOS";
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in
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# Build boot scripts for the CD that find the CD-ROM automatically.
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with import ./boot-environment.nix {
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autoDetectRootDevice = true;
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rootLabel = cdromLabel;
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stage2Init = "/init";
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readOnlyRoot = true;
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};
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rec {
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inherit nixosInstaller bootStage1; # !!! debug
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# Since the CD is read-only, the mount points must be on disk.
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cdMountPoints = pkgs.stdenv.mkDerivation {
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name = "mount-points";
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builder = builtins.toFile "builder.sh" "
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source $stdenv/setup
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mkdir $out
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cd $out
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mkdir proc sys tmp etc dev var mnt nix nix/var
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touch $out/${cdromLabel}
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";
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};
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# Create an ISO image containing the isolinux boot loader, the
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# kernel, the initrd produced above, and the closure of the stage 2
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# init.
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rescueCD = import ./make-iso9660-image.nix {
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inherit (pkgs) stdenv cdrtools;
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isoName = "nixos.iso";
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contents = [
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{ source = pkgs.syslinux + "/lib/syslinux/isolinux.bin";
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target = "isolinux/isolinux.bin";
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}
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{ source = ./isolinux.cfg;
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target = "isolinux/isolinux.cfg";
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}
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{ source = pkgs.kernel + "/vmlinuz";
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target = "isolinux/vmlinuz";
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}
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{ source = initialRamdisk + "/initrd";
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target = "isolinux/initrd";
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}
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{ source = cdMountPoints;
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target = "/";
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}
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];
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init = bootStage2;
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bootable = true;
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bootImage = "isolinux/isolinux.bin";
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};
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}
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