This reverts commit 2e702d07bb.
Segfaults during evaluation in yet-to-be-determined circumstances.
Investigation is ongoing, reverting for now to be safe.
Upstream issue: https://github.com/NixOS/nix/issues/11547
This reverts commit ac849e5658.
Nix 2.24 segfaults semi-randomly during evaluation on specific configs (?).
This commit prepares for another revert, putting the default back to 2.18.
Upstream issue: https://github.com/NixOS/nix/issues/11547
noXLibs is an advanced option for advanced users which know how to recognize and debug build failures which might be caused by the added overlays.
The minimal profile should be minimal but also save to use for many people and not cause build failures in packages it really shouldn't.
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.
The comment says this is required by other modules but to be honest, I
cannot see where. Bootloaders will be included automatically by nixos
generation if their `installBootLoader` attribute references it.
This helps us to make kexec images even smaller espeically when
combined with the perlless profile.
Contrary to the official documentation, setting only enable_uart=1 will
not fix VPU core clock frequency for Raspberry Pi 3, which cause the
mini UART serial output to be garbaled. Manually setting core_freq to
the documented value 250 resolves the issue.
these changes were generated with nixq 0.0.2, by running
nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix
two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.
Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
PR #256638 inadvertently introduced a bug in `nixos-generate-config` whereby it
would never put `bcache` into the `availableKernelModules` for the initrd.
This is because the `qr` operator in Perl returns a regex object, rather than
matching it; the regex object evaluates to true, making the filter expression
effectively `grep(!true, @bcacheDevices)`, which will always return an empty
list.
Right now the worst case chain of events for building an ISO on Hydra is
- copy everything to squashfs builder
- run squashfs builder
- download squashfs from builder
- compress squashfs
- upload squashfs to S3
- copy squashfs to ISO builder
- run ISO builder
- download ISO from builder
- compress ISO
- upload ISO to S3
This inlines the squashfs build into the ISO build, which makes it
- copy everything to ISO builder
- run ISO builder
- download ISO from builder
- compress ISO
- upload ISO to S3
Which should reduce queue runner load by $alot per ISO, which we have four of on small channels
(one release, one test per arch) and a lot more than four of on large channels (with various desktops)
this lets us *dis*able filesystem explicitly, as is required by e.g. the
zfs-less installer images. currently that specifically is only easily
possible by adding an overlay that stubs out `zfs`, with the obvious
side-effect of also removing tooling that could run without the kernel
module loaded.
When building kexec-based installer every mb saved will reduce the RAM usage and allow to install NixOS on smaller machines.
It also means that less data has to be downloaded from the network.
When using flakes or niv we no longer rely on nix channels beeing present
and when using something like nixos-anywhere, we no longer need to evaluate anything in the installer at all.
This script would always "detect" the "powersave" governor as it is available on
practically all CPUs while the "ondemand" governor is only available on some old
CPUs.
IME the "powersave" governor barely provides any power savings but introduces
massive performance deficits, including noticable stuttering. This is not the
default experience we should offer users, even for those who use laptops.
Use the kernel default (currently "performance", CPU makers may change it in
future) instead.
[Motivation](https://github.com/NixOS/nixpkgs/issues/257817#issuecomment-1741705042):
- Having all the XKB options in the same attribute set clarifies their
relation better than using a common option name prefix ("xkb").
- `services.xserver.layout` is an XKB option, but this is not obvious
from its name. Putting it with the other XKB options clarifies this.
Co-authored-by: Michele Guerini Rocco <rnhmjoj@users.noreply.github.com>
Relying on the built-in UEFI console here was already necessary, so we
are losing nothing by removing the needless `serial` call, which hung
some systems.
This also makes the implementation much easier to understand.
Also, no ugly-font menu anymore!
This helps keep logic simpler, as what we do is forcing text mode, which
means the non-default case is `truthy`, making things easier to digest
in the config file.
Also renaming this option is considered "internal", since it lives only
within the `iso-image` namespace, and also not a breaking change since
it was not part of a stable release.
Which ***anyway*** was not disabled correctly. Following changes will
actually disable it.
What this did was disable the "themed" menu driver, but still continued
relying on the gfxterm infra, which in itself is why things were ugly
and weird.
The `serial` console hangs on some systems. Unknown why.
Anyway, the way this worked right now relied on it telling the user on
the UEFI console how to enable it. So if I understand it correctly, it
will not cause any regression there.
- Move contents of README.md from
nixos/modules/installer/tools/manpages/ to
nixos/doc/manual/contributing-to-this-manual.chapter.md.
- Don't mention DocBook as its obsolete and too specific.
- Rename derivation attribute name of configuration.nix(5) manual page,
both on the `contributing-to-this-manual.chapter.md`, and in other
places.
Since each such `nixos-*` tool has it's own derivation, exposed in pkgs,
There is no point in separating the manuals from the packages. If
someone wishes to have the tools without the manuals, they can use
meta.outputsToInstall to disable the installation of the manpages of
these packages. This Fixes#244450.
After building the target system, `nixos-install` tries to remove `/mnt`
on the target filesystem. And the script may fail without any explanation,
if `/mnt` isn't empty.
This commit makes the installation process carry on even if there are
files under `/mnt`.
See https://github.com/NixOS/nixpkgs/issues/244643.
Although 'lib' isn't needed by the default configuration, new NixOS uses
can get confused when being recommended configuration.nix snippets like
systemd.services.NetworkManager-wait-online.enable = lib.mkForce false;
and have `sudo nixos-rebuild switch` fail with
error: undefined variable 'lib'
swraid support will now only be enabled by default if stateVersion is
older than 23.11. nixos-generate-config will now generate explicit
config for enabling support if needed.
