84 lines
2.5 KiB
Nix
84 lines
2.5 KiB
Nix
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{pkgs, config, ...}:
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let
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# This attribute is responsible for creating boot entries for
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# child configuration. They are only (directly) accessible
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# when the parent configuration is boot default. For example,
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# you can provide an easy way to boot the same configuration
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# as you use, but with another kernel
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# !!! fix this
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children = map (x: ((import ./system.nix)
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{ platform = pkgs.system;
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configuration = x//{boot=((x.boot)//{grubDevice = "";});};}).system)
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config.nesting.children;
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systemBuilder =
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''
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ensureDir $out
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ln -s ${config.boot.kernelPackages.kernel}/vmlinuz $out/kernel
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ln -s $grub $out/grub
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ln -s ${config.system.build.bootStage2} $out/init
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ln -s ${config.system.build.initialRamdisk}/initrd $out/initrd
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ln -s ${config.system.activationScripts.script} $out/activate
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ln -s ${config.system.build.etc}/etc $out/etc
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ln -s ${config.system.path} $out/sw
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ln -s ${pkgs.upstart} $out/upstart
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echo "$kernelParams" > $out/kernel-params
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echo "$configurationName" > $out/configuration-name
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echo "${toString pkgs.upstart.interfaceVersion}" > $out/upstart-interface-version
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mkdir $out/fine-tune
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childCount=0;
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for i in $children; do
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childCount=$(( childCount + 1 ));
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ln -s $i $out/fine-tune/child-$childCount;
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done
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cat > $out/menu.lst << GRUBEND
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kernel $kernel init=$bootStage2 $kernelParams
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initrd $initrd
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GRUBEND
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ensureDir $out/bin
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substituteAll ${./switch-to-configuration.sh} $out/bin/switch-to-configuration
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chmod +x $out/bin/switch-to-configuration
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'';
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# Putting it all together. This builds a store path containing
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# symlinks to the various parts of the built configuration (the
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# kernel, the Upstart services, the init scripts, etc.) as well as a
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# script `switch-to-configuration' that activates the configuration
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# and makes it bootable.
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system = pkgs.stdenv.mkDerivation {
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name = "system";
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buildCommand = systemBuilder;
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inherit children;
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inherit (pkgs) grub;
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grubDevice = config.boot.grubDevice;
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kernelParams =
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config.boot.kernelParams ++ config.boot.extraKernelParams;
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grubMenuBuilder = config.system.build.grubMenuBuilder;
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configurationName = config.boot.configurationName;
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# Most of these are needed by grub-install.
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path = [
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pkgs.coreutils
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pkgs.gnused
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pkgs.gnugrep
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pkgs.findutils
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pkgs.diffutils
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pkgs.upstart # for initctl
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];
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};
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in {
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system.build.system = system;
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}
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