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f8ed5f30c0
NixOS has traditionally enabled the `ext` family of file systems by default. Originally, when switching to systemd initrd, we wanted to transition to making this explicit so that initrds could be made without `ext`. The problem is that anyone with `fsType = "auto";` for an `ext` file system in initrd will fail to boot, which is not really an acceptable regression as we switch to systemd initrd by default. By removing `default = "auto"` from `fsType`, we rule out the vast majority of these regressions as eval errors, since most users of `fsType = "auto"` for ext file systems are using it because of the default value. In hindsight, this is probably what #225352 was really about.
68 lines
2.3 KiB
Nix
68 lines
2.3 KiB
Nix
{ lib, pkgs, ... }:
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{
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name = "systemd-initrd-luks-password";
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nodes.machine =
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{ pkgs, ... }:
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{
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# Use systemd-boot
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virtualisation = {
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emptyDiskImages = [
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512
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512
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];
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useBootLoader = true;
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# Booting off the encrypted disk requires an available init script
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mountHostNixStore = true;
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useEFIBoot = true;
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};
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boot.loader.systemd-boot.enable = true;
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environment.systemPackages = with pkgs; [ cryptsetup ];
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boot.initrd.systemd = {
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enable = true;
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emergencyAccess = true;
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};
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specialisation.boot-luks.configuration = {
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boot.initrd.luks.devices = lib.mkVMOverride {
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# We have two disks and only type one password - key reuse is in place
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cryptroot.device = "/dev/vdb";
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cryptroot2.device = "/dev/vdc";
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};
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virtualisation.rootDevice = "/dev/mapper/cryptroot";
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# test mounting device unlocked in initrd after switching root
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virtualisation.fileSystems."/cryptroot2" = {
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device = "/dev/mapper/cryptroot2";
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fsType = "auto";
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};
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};
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};
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testScript = ''
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# Create encrypted volume
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machine.wait_for_unit("multi-user.target")
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machine.succeed("echo -n supersecret | cryptsetup luksFormat -q --iter-time=1 /dev/vdb -")
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machine.succeed("echo -n supersecret | cryptsetup luksOpen -q /dev/vdb cryptroot")
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machine.succeed("mkfs.ext4 /dev/mapper/cryptroot")
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machine.succeed("echo -n supersecret | cryptsetup luksFormat -q --iter-time=1 /dev/vdc -")
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machine.succeed("echo -n supersecret | cryptsetup luksOpen -q /dev/vdc cryptroot2")
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machine.succeed("mkfs.ext4 /dev/mapper/cryptroot2")
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# Boot from the encrypted disk
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machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks.conf")
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machine.succeed("sync")
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machine.crash()
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# Boot and decrypt the disk
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machine.start()
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machine.wait_for_console_text("Please enter passphrase for disk cryptroot")
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machine.send_console("supersecret\n")
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machine.wait_for_unit("multi-user.target")
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assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount"), "/dev/mapper/cryptroot do not appear in mountpoints list"
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assert "/dev/mapper/cryptroot2 on /cryptroot2 type ext4" in machine.succeed("mount")
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'';
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}
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