The main goal of this commit is to replace the rather fragile passing of
multiple arrays which could break in cases like #130935.
While I could have just added proper shell escaping to the variables
being passed, I opted for the more painful approach of replacing the
fragile and somewhat strange construct with the 5 bash lists. While
there are currently no more problems present with the current approach
(at least none that I know of), the new approach seems more solid and
might get around problems that could arise in the future stemming from
either the multiple-lists situation or from the absence of proper shell
quoting all over the script.
systemd-coredump tries to drop privileges to a systemd-coredump user if
present (and falls back to the root user if it's not available).
Create that user, and recycle uid 151 for it. We don't really care about
the gid.
Fixes https://github.com/NixOS/nixpkgs/issues/120803.
This modifies initialRamdiskSecretAppender to stage secrets in
/.initrd-secrets/ and stage-1-init to copy them into place after mounting
special file systems. This allows secrets to be copied into ramfs mounts
like /run/keys for use after stage-1 finishes without copying them to disk
(which would not be very secure).
- The order of NSS (host) modules has been brought in line with upstream
recommendations:
- The `myhostname` module is placed before the `resolve` (optional) and `dns`
entries, but after `file` (to allow overriding via `/etc/hosts` /
`networking.extraHosts`, and prevent ISPs with catchall-DNS resolvers from
hijacking `.localhost` domains)
- The `mymachines` module, which provides hostname resolution for local
containers (registered with `systemd-machined`) is placed to the front, to
make sure its mappings are preferred over other resolvers.
- If systemd-networkd is enabled, the `resolve` module is placed before
`files` and `myhostname`, as it provides the same logic internally, with
caching.
- The `mdns(_minimal)` module has been updated to the new priorities.
If you use your own NSS host modules, make sure to update your priorities
according to these rules:
- NSS modules which should be queried before `resolved` DNS resolution should
use mkBefore.
- NSS modules which should be queried after `resolved`, `files` and
`myhostname`, but before `dns` should use the default priority
- NSS modules which should come after `dns` should use mkAfter.
binfmt activation script creates /run/binfmt before mounting /run
when system activation.
To fix it I added dependency to specialfs to binfmt activation
script.
os.readlink only resolves one layer of symlinks. This script explicitly relies on the real path of a file for deduplication, hence symlink resolution should recurse.
Previously the code took the kernelPatches of the final derivation, which
might or might not be what was passed to the derivation in the original call.
The previous behaviour caused various hacks to become neccessary to avoid duplicates in kernelPatches.
`systemd.network.networks.*.dhcpServerConfig` did not accept all of
the options which are valid for networkd's [DHCPServer] section. See
systemd.network(5) of systemd 247 for details.
Since 03eaa48 added perl.withPackages, there is a canonical way to
create a perl interpreter from a list of libraries, for use in script
shebangs or generic build inputs. This method is declarative (what we
are doing is clear), produces short shebangs[1] and needs not to wrap
existing scripts.
Unfortunately there are a few exceptions that I've found:
1. Scripts that are calling perl with the -T switch. This makes perl
ignore PERL5LIB, which is what perl.withPackages is using to inform
the interpreter of the library paths.
2. Perl packages that depends on libraries in their own path. This
is not possible because perl.withPackages works at build time. The
workaround is to add `-I $out/${perl.libPrefix}` to the shebang.
In all other cases I propose to switch to perl.withPackages.
[1]: https://lwn.net/Articles/779997/
Adding template overrides allows for custom behavior for specific
instances of a template. Previously, it was not possible to provide
bind mounts for systemd-nspawn. This change allows it.
Currently, kernel config options whose value is "yes" always override
options whose value is "no".
This is not always desired.
Generally speaking, if someone defines an option to have the value
"no", presumably they are disabling the option for a reason, so it's
not always OK to silently enable it due to another, probably unrelated
reason.
For example, a user may want to reduce the kernel attack surface and
therefore may want to disable features that are being enabled in
common-config.nix.
In fact, common-config.nix was already silently enabling options that
were intended to be disabled in hardened/config.nix for security
reasons, such as INET_DIAG.
By eliminating the custom merge function, these config options will
now use the default module option merge functions which make sure
that all options with the highest priority have the same value.
A user that wishes to override an option defined in common-config.nix
can currently use mkForce or mkOverride to do so, e.g.:
BINFMT_MISC = mkForce (option no);
That said, this is not going to be necessary in the future, because
the plan is for kernel config options defined in nixpkgs to use a
lower priority by default, like it currently happens for other module
options.
Catch and ignore errors during writing of the boot entries. These
errors could stem from profile names that are not valid filenames on
vfat filesystems.
fixes#114552
The BGRT theme is probably a close as to "FlickerFree" we can
get without https://github.com/NixOS/nixpkgs/pull/74842.
It's more agnostic than the Breeze theme.
We also install all of themes provided by the packages, as it's possible
that one theme needs the ImageDir of another, and they're small files
anyways.
Lastly, how plymouth handles logo and header files is
a total mess, so hopefully when they have an actual release
we won't need to do all this symlinking.
This allows Plymouth to show the “NixOS 21.03” label under the logo at
startup like it already does at shutdown.
Fixes#59992.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Renaming an interface must be done in stage-1: otherwise udev will
report the interface as ready and network daemons (networkd, dhcpcd,
etc.) will bring it up. Once up the interface can't be changed and the
renaming will fail.
Note: link files are read directly by udev, so they can be used even
without networkd enabled.
It was introduced in c10fe14 but removed in c4f910f.
It remained such that people with older generations in their boot
entries could still boot those. Given that the parameter hasn't had any
use in quite some years, it seems safe to remove now.
Fixes#60184
`unitOption` is only used inside of `attrsOf` wich is perfectly capable of
handling the attrsets from `mkIf`, though the checkUnitConfig test
forbids it. This commit weakens that restriction to allow the usage of
`mkIf` inside of `systemd.services.<name>.serviceConfig.<something>`
etc.
networkd's [IPv6PrefixDelegation] section and IPv6PrefixDelegation=
options have been renamed as [IPv6SendRA] and IPv6SendRA= in systemd
247.
Throws if the deprecated option ipv6PrefixDelegationConfig is used.
The `platform` field is pointless nesting: it's just stuff that happens
to be defined together, and that should be an implementation detail.
This instead makes `linux-kernel` and `gcc` top level fields in platform
configs. They join `rustc` there [all are optional], which was put there
and not in `platform` in anticipation of a change like this.
`linux-kernel.arch` in particular also becomes `linuxArch`, to match the
other `*Arch`es.
The next step after is this to combine the *specific* machines from
`lib.systems.platforms` with `lib.systems.examples`, keeping just the
"multiplatform" ones for defaulting.
Declaring them as lists enables the concatenation, supporting
lib.mkBefore, lib.mkOrder, etc.
This is useful when you need to extend a service with a pre-start
script that needs to run as root.
Originally, changes to the kernel don't propagate to the other
derivation within the same package set. This commit allows for the
changes in the kernel to be propagated.
A distinct example is setting `boot.kernel.randstructSeed` to a non-zero
length string which would result in building 2 kernels, one with the
correct seed and the other with the zero length seed. Then, when using
an out-of-tree kernel driver, it would be built with the zero length
seed which differs from the non-zero length seed used to boot,
contradicting the purpose of the `boot.kernel.randstructSeed`.
For in NixOS it is beneficial if both plasma5 and pam use the same Qt5
version. Because the plasma5 desktop may use a different version as the
default Qt5 version, we introduce plasma5Packages.
https://github.com/NixOS/nixpkgs/pull/107497 broke booting on many systems that
use tmpOnTmpfs due to the lack of specifying the mount type.
This commit explicitly adds the mount type, which should fix booting
such systems.
The original change may want to be revisited however too.
@poettering decided we only need a limited number of inodes in our /tmp,
so why not limit that for every systemd user? That makes medium-sized nix
builds impossible so this commit restores the old behaviour which is the
kernel default of half the number of physical RAM pages which does not
seem too unreasonable to me.
See https://www.redhat.com/sysadmin/fedora-31-control-group-v2 for
details on why this is desirable, and how it impacts containers.
Users that need to keep using the old cgroup hierarchy can re-enable it
by setting `systemd.unifiedCgroupHierarchy` to `false`.
Well-known candidates not supporting that hierarchy, like docker and
hidepid=… will disable it automatically.
Fixes#73800
This used to be done by udev, but that was removed in
systemd/systemd@6b2229c. The links are created by systemd at the end of
stage-2, but activation scripts might need them earlier.
These were broken since 2016:
f0367da7d1
since StartLimitIntervalSec got moved into [Unit] from [Service].
StartLimitBurst has also been moved accordingly, so let's fix that one
too.
NixOS systems have been producing logs such as:
/nix/store/wf98r55aszi1bkmln1lvdbp7znsfr70i-unit-caddy.service/caddy.service:31:
Unknown key name 'StartLimitIntervalSec' in section 'Service', ignoring.
I have also removed some unnecessary duplication in units disabling
rate limiting since setting either interval or burst to zero disables it
(ad16158c10/src/basic/ratelimit.c (L16))
When the stage-1 logs get imported in to the journal, they all get
loaded with the same timestamp. This makes it difficult to identify
what might be taking a long time in early boot.
It looks like the test sshd key can never be used, because of too open
permissions. My guess is that the current test script works fine once
the user defined ssh-key has been copied into initrd.
At "nixos-install" however, the user specified host key is not present
in initrd yet and validation fails.
fixes#91486
Otherwise, stage-2-init.sh will complain about not having access to
/dev/fd/62 as of systemd v246.
On IRC, flokli said:
15:14 <flokli> cole-h: hmmm... I could imagine some of the setup inside /dev has been moved into other parts of systemd
15:14 <flokli> And given we run systemd much later (outside initramfs only) it doesn't work properly here
15:17 <flokli> We probably don't invoke udev correctly
This is a temporary fix for #97433. A more proper fix has been
implemented upstream in systemd/systemd#17001, however until it gets
backported, we are stuck with ignoring the error.
After the backport lands, this commit should be reverted.
For UEFI setups, "device" will generally be the special value "nodev"
which represents not running grub-install at all. Using "nodev" for
boot mirrors should therefore be allowed.
The commit enforces buildPackages in the builder but neglects
the fact that the builder is intended to run on the target system.
Because of that, the builder will fail when remotely building a
configuration eg. with nixops or nix-copy-closure.
This reverts commit a6ac6d00f9.
