import ./make-test-python.nix ({pkgs, lib, ...}: let # A filesystem image with a (presumably) bootable debian debianImage = pkgs.vmTools.diskImageFuns.debian11i386 { # os-prober cannot detect systems installed on disks without a partition table # so we create the disk ourselves createRootFS = with pkgs; '' ${parted}/bin/parted --script /dev/vda mklabel msdos ${parted}/sbin/parted --script /dev/vda -- mkpart primary ext2 1M -1s mkdir /mnt ${e2fsprogs}/bin/mkfs.ext4 -O '^metadata_csum_seed' /dev/vda1 ${util-linux}/bin/mount -t ext4 /dev/vda1 /mnt if test -e /mnt/.debug; then exec ${bash}/bin/sh fi touch /mnt/.debug mkdir /mnt/proc /mnt/dev /mnt/sys ''; extraPackages = [ # /etc/os-release "base-files" # make the disk bootable-looking "grub2" "linux-image-686" ]; # install grub postInstall = '' ln -sf /proc/self/mounts > /etc/mtab PATH=/usr/bin:/bin:/usr/sbin:/sbin $chroot /mnt \ grub-install /dev/vda --force PATH=/usr/bin:/bin:/usr/sbin:/sbin $chroot /mnt \ update-grub ''; }; # a part of the configuration of the test vm simpleConfig = { boot.loader.grub = { enable = true; useOSProber = true; device = "/dev/vda"; # vda is a filesystem without partition table forceInstall = true; }; nix.settings = { substituters = lib.mkForce []; hashed-mirrors = null; connect-timeout = 1; }; # save some memory documentation.enable = false; }; # /etc/nixos/configuration.nix for the vm configFile = pkgs.writeText "configuration.nix" '' {config, pkgs, lib, ...}: ({ imports = [ ./hardware-configuration.nix ]; } // lib.importJSON ${ pkgs.writeText "simpleConfig.json" (builtins.toJSON simpleConfig) }) ''; in { name = "os-prober"; nodes.machine = { config, pkgs, ... }: (simpleConfig // { imports = [ ../modules/profiles/installation-device.nix ../modules/profiles/base.nix ]; virtualisation.memorySize = 1300; # To add the secondary disk: virtualisation.qemu.options = [ "-drive index=2,file=${debianImage}/disk-image.qcow2,read-only,if=virtio" ]; # The test cannot access the network, so any packages # nixos-rebuild needs must be included in the VM. system.extraDependencies = with pkgs; [ bintools brotli brotli.dev brotli.lib desktop-file-utils docbook5 docbook_xsl_ns grub2 kbd kbd.dev kmod.dev libarchive libarchive.dev libxml2.bin libxslt.bin nixos-artwork.wallpapers.simple-dark-gray-bottom ntp perlPackages.ListCompare perlPackages.XMLLibXML python3Minimal shared-mime-info stdenv sudo texinfo unionfs-fuse xorg.lndir # add curl so that rather than seeing the test attempt to download # curl's tarball, we see what it's trying to download curl ]; }); testScript = '' machine.start() machine.succeed("udevadm settle") machine.wait_for_unit("multi-user.target") print(machine.succeed("lsblk")) # check that os-prober works standalone machine.succeed( "${pkgs.os-prober}/bin/os-prober | grep /dev/vdb1" ) # rebuild and test that debian is available in the grub menu machine.succeed("nixos-generate-config") machine.copy_from_host( "${configFile}", "/etc/nixos/configuration.nix", ) machine.succeed("nixos-rebuild boot --show-trace >&2") machine.succeed("egrep 'menuentry.*debian' /boot/grub/grub.cfg") ''; })