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nixos-install: Update manpage

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nixos-install now detects by-attrset configurations differently,
and uses system.nix filename instead of default.nix

Amended-by: rnhmjoj <rnhmjoj@inventati.org>
This commit is contained in:
Wroclaw
2026-03-21 09:57:23 +01:00
committed by rnhmjoj
parent 94c3511522
commit 7d537b0dfc
1 changed files with 22 additions and 12 deletions
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pkgs/by-name/ni/nixos-install/nixos-install.8
+22 -12
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@@ -33,9 +33,19 @@
.Sh DESCRIPTION
This command installs NixOS in the file system mounted on
.Pa /mnt Ns
, based on the NixOS configuration specified in
.Pa /mnt/etc/nixos/configuration.nix Ns
\&. It performs the following steps:
, or defined through the
.Fl -root
option, based on the NixOS configuration specified in
.Pa /mnt/etc/nixos/system.nix Ns
,
.Pa /mnt/etc/nixos/configuration.nix
or specified through the
.Fl -file Ns
,
.Fl -attr Ns
or
.Fl -flake Ns
options. It performs the following steps:
.
.Bl -enum
.It
@@ -46,9 +56,7 @@ It copies Nix and its dependencies to
.It
It runs Nix in
.Pa /mnt
to build the NixOS configuration specified in
.Pa /mnt/etc/nixos/configuration.nix Ns
\&.
to build the given NixOS configuration.
.
.It
It installs the current channel
@@ -114,7 +122,7 @@ output named
\&.
.
.It Fl -file Ar path , Fl f Ar path
Enable and build the NixOS system from the specified file. The file must
Build the NixOS system from the specified file. The file must
evaluate to an attribute set, and it must contain a valid NixOS configuration
at attribute
.Va attrPath Ns
@@ -127,17 +135,19 @@ function in nixpkgs or importing and calling
from nixpkgs. If specified without
.Fl -attr
option, builds the configuration from the top-level
attribute of the file.
attribute set of the file.
.
.It Fl -attr Ar attrPath , Fl A Ar attrPath
Enable and build the NixOS system from nix file and use the specified attribute
Build the NixOS system from nix file and use the specified attribute
path from file specified by the
.Fl -file
option. If specified without
.Fl -file
option, uses
.Va [root] Ns Pa /etc/nixos/default.nix Ns
\&.
option, it tires to find
.Pa system.nix
in
.Va root Ns Pa /etc/nixos Ns
, in current directory and iteratively in parent directories.
.
.It Fl -channel Ar channel
If this option is provided, do not copy the current