import ./make-test-python.nix ({ lib, pkgs, ... }: { name = "systemd-initrd-simple"; nodes.machine = { pkgs, ... }: { testing.initrdBackdoor = true; boot.initrd.systemd.enable = true; virtualisation.fileSystems."/".autoResize = true; }; testScript = '' import subprocess with subtest("testing initrd backdoor"): machine.wait_for_unit("initrd.target") machine.succeed("systemctl status initrd-fs.target") machine.switch_root() with subtest("handover to stage-2 systemd works"): machine.wait_for_unit("multi-user.target") machine.succeed("systemd-analyze | grep -q '(initrd)'") # direct handover machine.succeed("touch /testfile") # / is writable machine.fail("touch /nix/store/testfile") # /nix/store is not writable # Special filesystems are mounted by systemd machine.succeed("[ -e /run/booted-system ]") # /run machine.succeed("[ -e /sys/class ]") # /sys machine.succeed("[ -e /dev/null ]") # /dev machine.succeed("[ -e /proc/1 ]") # /proc # stage-2-init mounted more special filesystems machine.succeed("[ -e /dev/shm ]") # /dev/shm machine.succeed("[ -e /dev/pts/ptmx ]") # /dev/pts machine.succeed("[ -e /run/keys ]") # /run/keys # /nixos-closure didn't leak into stage-2 machine.succeed("[ ! -e /nixos-closure ]") with subtest("groups work"): machine.fail("journalctl -b 0 | grep 'systemd-udevd.*Unknown group.*ignoring'") with subtest("growfs works"): oldAvail = machine.succeed("df --output=avail / | sed 1d") machine.shutdown() subprocess.check_call(["qemu-img", "resize", "vm-state-machine/machine.qcow2", "+1G"]) machine.start() machine.switch_root() newAvail = machine.succeed("df --output=avail / | sed 1d") assert int(oldAvail) < int(newAvail), "File system did not grow" ''; })