{ config, pkgs, ... }: with pkgs.lib; { system.build.virtualBoxImage = pkgs.vmTools.runInLinuxVM ( pkgs.runCommand "virtualbox-image" { preVM = '' mkdir $out diskImage=$out/image ${pkgs.vmTools.kvm}/bin/qemu-img create -f raw $diskImage "10G" mv closure xchg/ ''; postVM = '' ${pkgs.vmTools.kvm}/bin/qemu-img convert -f raw -O vdi $diskImage $out/disk.vdi rm $diskImage ''; buildInputs = [ pkgs.utillinux pkgs.perl ]; exportReferencesGraph = [ "closure" config.system.build.toplevel ]; } '' # Create a single / partition. ${pkgs.parted}/sbin/parted /dev/vda mklabel msdos ${pkgs.parted}/sbin/parted /dev/vda -- mkpart primary ext2 1M -1s . /sys/class/block/vda1/uevent mknod /dev/vda1 b $MAJOR $MINOR # Create an empty filesystem and mount it. ${pkgs.e2fsprogs}/sbin/mkfs.ext4 -L nixos /dev/vda1 ${pkgs.e2fsprogs}/sbin/tune2fs -c 0 -i 0 /dev/vda1 mkdir /mnt mount /dev/vda1 /mnt # The initrd expects these directories to exist. mkdir /mnt/dev /mnt/proc /mnt/sys mount --bind /proc /mnt/proc mount --bind /dev /mnt/dev mount --bind /sys /mnt/sys # Copy all paths in the closure to the filesystem. storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure) mkdir -p /mnt/nix/store ${pkgs.rsync}/bin/rsync -av $storePaths /mnt/nix/store/ # Register the paths in the Nix database. printRegistration=1 perl ${pkgs.pathsFromGraph} /tmp/xchg/closure | \ chroot /mnt ${config.environment.nix}/bin/nix-store --load-db # Create the system profile to allow nixos-rebuild to work. chroot /mnt ${config.environment.nix}/bin/nix-env \ -p /nix/var/nix/profiles/system --set ${config.system.build.toplevel} # `nixos-rebuild' requires an /etc/NIXOS. mkdir -p /mnt/etc touch /mnt/etc/NIXOS # Install a configuration.nix. mkdir -p /mnt/etc/nixos cp ${./nova-config.nix} /mnt/etc/nixos/configuration.nix # Generate the GRUB menu. chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot umount /mnt/proc /mnt/dev /mnt/sys umount /mnt '' ); fileSystems."/".device = "/dev/disk/by-label/nixos"; boot.loader.grub.version = 2; boot.loader.grub.device = "/dev/sda"; services.virtualbox.enable = true; }