Use the store directory for the devicetree package containing the
desired DTB when installing to the ESP. This allows for more than one
NixOS generation containing differing DTBs to coexist on the same ESP
(similar to how we can have multiple kernels & initrds). This change
removes the assumption that the filepath passed to `copy_from_file` is a
file that lives at the toplevel of a nix output path (which prior to the
systemd-boot DTB support was the case for the kernel and initrd
derivations).
When building an image, rather than operating on a real partition,
there's no need to have sfdisk tell the kernel to reread the partition
table. This also avoids a call to sync(2), which could be very
expensive depending on what other IO is going on on the system at the time.
This adds a new `imageStream` option that can be used in conjunction
with `pkgs.dockerTools.streamLayeredImage` so that the image archive
never needs to be materialized in the `/nix/store`. This greatly
improves the disk utilization for systems that use container images
built using Nix because they only need to store image layers instead of
the full image. Additionally, when deploying the new system and only
new layers need to be built/copied.
After upgrading to 3.5.0 we noticed, that registering would redirect to
the login page and not work at all. At the same time the admin user was
unable to access its user settings.
This issue could be tracked back to the template cache, that must be
invalidated between release upgrades.
This should fix errors where /etc is reported to be busy and thus cannot
be unmounted.
Another solution we can consider if this doesn't work out as we expect
is to forcefully unmount /etc.
I've observed that sometimes the overlay mount unit does not get started
when using wantedBy. requiredBy makes this relationship stricter and if
necessary will restart the initrd-fs.target and thus ensure that when
this target is reached /etc has alredy been mounted. This is in line
with the description of initrd-fs.target in systemd.special:
> Thus, once this target is reached the /sysroot/ hierarchy is fully set up
This was broken by the Rust 1.80 upgrade, and is an old version that
we’d have to patch to keep working.
We have already done the 0.4 → 0.5 update without keeping around
the old version or adding in any additional `stateVersion` logic
in <https://github.com/NixOS/nixpkgs/pull/280221>. As a result,
migration for 0.3 users is going to be a little awkward. I’ve done
my best to provide comprehensive instructions for anyone who hasn’t
already bumped to 0.4.
It is probably a footgun to add `stateVersion` logic for any
package that makes backwards‐incompatible schema changes and only
supports migration from the immediately previous version. Users
won’t get migrated by default and we have to either package and
maintain an endlessly growing list of old versions or add complicated
instructions like this. It’s not really practical for us to support
a significantly better migration story than upstream does.
[UWSM](https://github.com/Vladimir-csp/uwsm) is a session manager that wraps a wayland
window compositor with useful systemd units like `graphical-session-pre.target`,
`graphical-session.target`, `xdg-desktop-autostart.target`.
This is useful for Wayland Compositors that do not start
these units on these own.
Example for Hyprland:
```nix
programs.hyprland.enable = true;
programs.uwsm.enable = true;
programs.uwsm.waylandCompositors = {
hyprland = {
compositorPrettyName = "Hyprland";
compositorComment = "Hyprland compositor managed by UWSM";
compositorBinPath = "/run/current-system/sw/bin/Hyprland";
};
};
```
Co-authored-by: Kai Norman Clasen <k.clasen@protonmail.com>
The mkfs.erofs utility has a lot of output by default that slows down
running tests. We don't need to capture any of the output from
mkfs.erofs, so we can suppress it.
The cgitrc file allows list of values to be set for some keys as
multiple definition lines.
This allows setting multiple "css" files to include or multiple
"readme" branch and file lookup paths to be set.
The minimum reproduction for the problem I'm trying to solve is that
the following NixOS test with a trivial NixOS container:
```
{ inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/24.05";
flake-utils.url = "github:numtide/flake-utils/v1.0.0";
};
outputs = { flake-utils, nixpkgs, self, ... }:
flake-utils.lib.eachDefaultSystem (system: {
checks.default = nixpkgs.legacyPackages."${system}".nixosTest {
name = "test";
nodes.machine.containers.tutorial.config = { };
testScript = "";
};
});
}
```
… fails with the following error message:
```
error: Neither nodes.machine.nixpkgs.hostPlatform nor the legacy option nodes.machine.nixpkgs.system has been set.
You can set nodes.machine.nixpkgs.hostPlatform in hardware-configuration.nix by re-running
a recent version of nixos-generate-config.
The option nodes.machine.nixpkgs.system is still fully supported for NixOS 22.05 interoperability,
but will be deprecated in the future, so we recommend to set nodes.machine.nixpkgs.hostPlatform.
```
The root of the problem appears to be that in
`nixos/modules/virtualisation/nixos-containers.nix` there is support
for deriving the guest's `nixpkgs.hostPlatform` or
`nixpkgs.localSystem` from the corresponding host's values, but this
doesn't work if the host sets `nixpkgs.pkgs` instead of one of those
values. In fact, this is what happens when using `pkgs.nixosTest`
(which sets `nixpkgs.pkgs` in
`pkgs/build-support/testers/default.nix`).
The solution I went with was to forward the `nixpkgs.pkgs` setting from
the host to the guest, but only if it is defined (matching the same
treatment as `nixpkgs.hostPlatform` and `nixpkgs.localSystem`.
Although CDI should be used in order to not require container runtime
wrappers anymore, fix the nvidia-container-runtime integration with
Docker for cases when Docker < 25.
This reverts commit 93b6400ff5.
Putting chromium in the system closure by enabling the module breaks
previous expectations of module users. Previously, this would create
policy files for chromium, google-chrome and brave as chromium based
browsers.
Use cases relating to a browser other than chromium directly as well
as only using home-manager's module system to configure other aspects
of a chromium package (various use cases require overriding inputs
to the chromium derivation) were not covered by this breaking change.
More design is needed before having policy and package options coexist
properly in this module.
Now it's possible to start multiple mailpit instances - for e.g.
multiple testing environments - on the same machine:
{
services.mailpit.instances = {
dev = { /* ... */ };
staging = { /* ... */ };
};
}
The simplest way to start a single instance is by declaring
services.mailpit.instances.default = {};
Implementation is now compatible with the option's .type already defined.
This allows us to pass `config.users.users.<user>.hashedPassword` even if this is null (the default).
Before:
true => access
false => no access
hash => access via password
null => eval error
After:
true => access
false => no access
hash => access via password
null => no access
Miniflux supports provisioning users via SSO, which renders admin
accounts unnecessary for some use-cases. This change retains the
existing default, but makes it easier to disable admin provisioning.
This adds support for declaring tmpfiles rules exclusively for the
systemd initrd. Configuration is possible through the new option
`boot.initrd.systemd.tmpfiles.settings` that shares the same interface as
`systemd.tmpfiles.settings`.
I did intentionally not replicate the `rules` interface here, given that
the settings attribute set is more versatile than the list of strings
used for `rules`. This should also make it unnecessary to implement the
workaround from 1a68e21d47 again.
A self-contained `tmpfiles.d` directory is generated from the new initrd
settings and it is added to the initrd as a content path at
`/etc/tmpfiles.d`.
The stage-1 `systemd-tmpfiles-setup.service` is now altered to no longer
operate under the `/sysroot` prefix, because the `/sysroot` hierarchy
cannot be expected to be available when the default upstream service is
started.
To handle files under `/sysroot` a slightly altered version of the
upstream default service is introduced. This new unit
`systemd-tmpfiles-setup-sysroot.service` operates only under the
`/sysroot` prefix and it is ordered between `initrd-fs.target` and the
nixos activation.
Config related to tmpfiles was moved from initrd.nix to tmpfiles.nix.
For the open driver, the `nvidia-uvm` module does not auto-load after
`nvidia`, which makes CUDA not work.
In this case, we need to add it to `boot.kernelModules` for it to work
again.
In #327506, we stopped using `/sbin` in the `pathsToLink` of `initrdBinEnv`. This inadvertantly stopped including the `sbin` directory of the `initrdBin` packages, which meant that things like `mdadm`'s udev rules, which referred to binaries by their `sbin` paths, stopped working.
The purpose of #327506 was to fix the fact that `mount` was not calling mount helpers like `mount.ext4` unless they happened to be in `/sbin`. But this raised some questions for me, because I thought we set `managerEnvironment.PATH` to help util-linux find helpers for both `mount` and `fsck`. So I decided to look at how this works in stage 2 to figure it out, and it's a little cursed.
---
What I already knew is that we have [this](696a4e3758/nixos/modules/system/boot/systemd.nix (L624-L625))
```
# util-linux is needed for the main fsck utility wrapping the fs-specific ones
PATH = lib.makeBinPath (config.system.fsPackages ++ [cfg.package.util-linux]);
```
And I thought this was how `mount` finds the mount helpers. But if that were true, then `mount` should be finding helpers in stage 1 because of [this](696a4e3758/nixos/modules/system/boot/systemd/initrd.nix (L411))
```
managerEnvironment.PATH = "/bin";
```
Turns out, `mount` _actually_ finds helpers with [this configure flag](696a4e3758/pkgs/os-specific/linux/util-linux/default.nix (L59))
```
"--enable-fs-paths-default=/run/wrappers/bin:/run/current-system/sw/bin:/sbin"
```
Ok... so then why do we need the PATH? Because `fsck` has [this](a75c7a102e/disk-utils/fsck.c (L1659))
```
fsck_path = xstrdup(path && *path ? path : FSCK_DEFAULT_PATH);
```
(`path` is `getenv("PATH")`)
So, tl;dr, `mount` and `fsck` have completely unrelated search paths for their helper programs
For `mount`, we have to use a configure flag to point to `/run/current-system`, and for `fsck` we can just set PATH
---
So, for systemd stage 1, we *do* want to include packages' `sbin` paths, because of the `mdadm` problem. But for `mount`, we need helpers to be on the search path, and right now that means putting it somewhere in `/run/wrappers/bin:/run/current-system/sw/bin:/sbin`.
Since the systemd boot counting PR was merged, dashes in specialisation
names cause issues when installing the boot loader entries, since dashes
are also used as separator for the different components of the file name
of the boot loader entries on disk.
The assertion avoids this footgun which is pretty annoying to recover
from.
With the the Systemd-based initrd, systemd-journald is doing the logging.
One of Journald's Trusted Journal Fields is `_HOSTNAME` (systemd.journal-fields(7)).
Without explicitly setting the hostname via this file or the kernel cmdline, `localhost` is used and captured in the journal.
As a result, a boot's log references multiple hostnames.
With centralized log collection this breaks filtering (more so when logs from multiple Systemd-based initrds are streaming in simultaneously.
Fixes#318907.
> evaluation warning: pkgs.writeText "motd": The second argument should be a string, but it's a null instead, which is deprecated. Use `toString` to convert the value to a string first.
