Add support for custom device-tree files, and applying overlays to them.
This is useful for supporting non-discoverable hardware, such as sensors
attached to GPIO pins on a Raspberry Pi.
This change was only a temporary workaround and isn't required anymore,
since /etc/systemd/system/system.slice should not be present on any
recent NixOS system (which makes this change a no-op).
This reverts commit 7098b0fcdf.
The autoupgrade service defined in `system.autoUpgrade`
(`nixos/modules/installer/tools/auto-upgrade.nix`) doesn't have `su` in
its path and thus yields a warning during the `daemon-reload`.
Specifying the absolute path fixes the issue.
Fixes#47648
I think pam_lastlog is the only thing that writes to these files in
practice on a modern Linux system, so in a configuration that doesn't
use that module, we don't need to create these files.
I used tmpfiles.d instead of activation snippets to create the logs.
It's good enough for upstream and other distros; it's probably good
enough for us.
Nix 2.0 no longer uses these directories.
/run/nix/current-load was moved to /nix/var/nix/current-load in 2017
(Nix commit d7653dfc6dea076ecbe00520c6137977e0fced35). Anyway,
src/build-remote/build-remote.cc will create the current-load directory
if it doesn't exist already.
/run/nix/remote-stores seems to have been deprecated since 2014 (Nix
commit b1af336132cfe8a6e4c54912cc512f8c28d4ebf3) when the documentation
for $NIX_OTHER_STORES was removed, and support for it was dropped
entirely in 2016 (Nix commit 4494000e04122f24558e1436e66d20d89028b4bd).
or else at least the following config will fail with an evaluation error
instead of an assert
```
{
services.nixosManual.enable = false;
services.nixosManual.showManual = true;
}
```
This fixes an issue with shells like fish that are not fully POSIX
compliant. The syntax `ENV=val cmd' doesn't work properly in there.
This issue has been addressed in #45932 and #45945, however it has been
recommended to use a single shell (`stdenv.shell' which is either
`bash' or `sh') to significantly reduce the maintenance overload in the
future.
See https://github.com/NixOS/nixpkgs/issues/45897#issuecomment-417923464Fixes#45897
/cc @FRidh @xaverdh @etu
The instructions to install nixos behind a proxy were not clear. While
one could guess that setting http_proxy variables can get the install
rolling, one could end up with an installed system where the proxy
settings for the nix-daemon are not configured.
This commit updates the documentation with
1. steps to install behind a proxy
2. configure the global proxy settings so that nix-daemon can access
internet.
3. Pointers to use nesting.clone in case one has to use different proxy
settings on different networks.
When rebuilding you have to manually run `systemctl --user
daemon-reload`. It gathers all authenticated users using
`loginctl list-user` and runs `daemon-reload` for each of them.
This is a first step towards a `nixos-rebuild` which is able to reload
user units from systemd. The entire task is fairly hard, however I
consider this patch usable as it allows to restart units without running
`daemon-reload` for each authenticated user.
This allows a developer to better identify in which snippet the
failure happened. Furthermore, users seeking help will have more
information available about the failure.
Problem: Restarting (stopping) system.slice would not only stop X11 but
also most system units/services. We obviously don't want this happening
to users when they switch from 18.03 to 18.09 or nixos-unstable.
Reason: The following change in systemd:
d8e5a93382
The commit adds system.slice to the perpetual units, which means
removing the unit file and adding it to the source code. This is done so
that system.slice can't be stopped anymore but in our case it ironically
would cause this script to stop system.slice because the unit file was
removed (and an older systemd version is still running).
Related issue: https://github.com/NixOS/nixpkgs/issues/39791
Resolved the following conflicts (by carefully applying patches from the both
branches since the fork point):
pkgs/development/libraries/epoxy/default.nix
pkgs/development/libraries/gtk+/3.x.nix
pkgs/development/python-modules/asgiref/default.nix
pkgs/development/python-modules/daphne/default.nix
pkgs/os-specific/linux/systemd/default.nix
Fixes#28443
Fixed few invocations to `systemctl` to have an absolute path. Additionally add
LOCALE_ARCHIVE so that perl stops spewing warning messages.
We only care about /nix/store because its contents might be out of
sync with /nix/var/nix/db. Syncing other filesystems might cause
unnecessary delays or hangs (e.g. I encountered a case where an NFS
mount was taking a very long time to sync).
This fixes two bugs:
* When socket activation is detected, the service itself is added to stop-start list instead of its sockets.
* When service is marked to restart instead of stop (`StopIfChanged = no`) we don't need to restart sockets.
This is a standard environment that doesn't contain a C/C++
compiler. This is mostly to prevent trivial builders like runCommand
and substituteAll from pulling in gcc for simple configuration changes
on NixOS.
Using "tmpfs" as a script part for system.activationScripts is a bit
misleading since 6efcfe03ae.
We no longer solely mount tmpfs within this script, so using "specialfs"
fits more nicely in terms of naming.
Tested against the "simple" NixOS installer test.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Regression introduced by 79d4636d50.
The mentioned commit moves /run/keys from stage 2 to
boot.specialFileSystems, the latter being remounted during system
activation.
Unfortunately, the specialMount function in the activation script does
this unconditionally and thus will fail if it can't be remounted because
the mount point simply doesn't exist.
We now check the mount point for existance and only remount if it exists
but mkdir + mount it if it doesn't.
Tested against the "simple" NixOS installer test.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
