32f75a0f2a
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.
192 lines
4.6 KiB
Groff
192 lines
4.6 KiB
Groff
.Dd January 1, 1980
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.Dt nixos-install 8
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.Os
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.Sh NAME
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.Nm nixos-install
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.Nd install bootloader and NixOS
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.
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.
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.
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.Sh SYNOPSIS
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.Nm nixos-install
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.Op Fl -verbose | v
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.Op Fl I Ar path
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.Op Fl -root Ar root
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.Op Fl -system Ar path
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.Op Fl -flake Ar flake-uri
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.Op Fl -impure
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.Op Fl -channel Ar channel
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.Op Fl -no-channel-copy
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.Op Fl -no-root-password | -no-root-passwd
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.Op Fl -no-bootloader
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.Op Fl -max-jobs | j Ar number
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.Op Fl -cores Ar number
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.Op Fl -option Ar name value
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.Op Fl -show-trace
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.Op Fl -keep-going
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.Op Fl -help
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.
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.
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.
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.Sh DESCRIPTION
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This command installs NixOS in the file system mounted on
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.Pa /mnt Ns
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, based on the NixOS configuration specified in
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.Pa /mnt/etc/nixos/configuration.nix Ns
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\&. It performs the following steps:
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.
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.Bl -enum
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.It
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It copies Nix and its dependencies to
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.Pa /mnt/nix/store Ns
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\&.
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.
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.It
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It runs Nix in
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.Pa /mnt
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to build the NixOS configuration specified in
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.Pa /mnt/etc/nixos/configuration.nix Ns
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\&.
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.
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.It
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It installs the current channel
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.Dq nixos
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in the target channel profile (unless
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.Fl -no-channel-copy
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is specified).
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.
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.It
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It installs the GRUB boot loader on the device specified in the option
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.Va boot.loader.grub.device
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(unless
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.Fl -no-bootloader
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is specified), and generates a GRUB configuration file that boots into the NixOS
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configuration just installed.
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.
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.It
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It prompts you for a password for the root account (unless
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.Fl -no-root-password
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is specified).
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.El
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.
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.Pp
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This command is idempotent: if it is interrupted or fails due to a temporary
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problem (e.g. a network issue), you can safely re-run it.
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.
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.
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.
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.Sh OPTIONS
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.Bl -tag -width indent
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.It Fl -verbose , v
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Increases the level of verbosity of diagnostic messages printed on standard
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error. For each Nix operation, the information printed on standard output is
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well-defined; any diagnostic information is printed on standard error, never on
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standard output.
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.Pp
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Please note that this option may be specified repeatedly.
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.
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.It Fl -root Ar root
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Defaults to
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.Pa /mnt Ns
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\&. If this option is given, treat the directory
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.Ar root
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as the root of the NixOS installation.
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.
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.It Fl -system Ar path
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If this option is provided,
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.Nm
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will install the specified closure rather than attempt to build one from
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.Pa /mnt/etc/nixos/configuration.nix Ns
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\&.
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.Pp
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The closure must be an appropriately configured NixOS system, with boot loader
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and partition configuration that fits the target host. Such a closure is
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typically obtained with a command such as
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.Ic nix-build -I nixos-config=./configuration.nix '<nixpkgs/nixos>' -A system --no-out-link Ns
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\&.
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.
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.It Fl -flake Ar flake-uri Ns # Ns Ar name
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Build the NixOS system from the specified flake. The flake must contain an
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output named
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.Ql nixosConfigurations. Ns Ar name Ns
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\&.
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.
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.It Fl -channel Ar channel
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If this option is provided, do not copy the current
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.Dq nixos
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channel to the target host. Instead, use the specified derivation.
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.
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.It Fl I Ar Path
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Add a path to the Nix expression search path. This option may be given multiple
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times. See the
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.Ev NIX_PATH
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environment variable for information on the semantics of the Nix search path. Paths added through
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.Fl I
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take precedence over
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.Ev NIX_PATH Ns
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\&.
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.
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.It Fl -max-jobs , j Ar number
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Sets the maximum number of build jobs that Nix will perform in parallel to the
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specified number. The default is 1. A higher value is useful on SMP systems or
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to exploit I/O latency.
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.
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.It Fl -cores Ar N
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Sets the value of the
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.Ev NIX_BUILD_CORES
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environment variable in the invocation of builders. Builders can use this
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variable at their discretion to control the maximum amount of parallelism. For
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instance, in Nixpkgs, if the derivation attribute
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.Va enableParallelBuilding
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is set to true, the builder passes the
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.Fl j Ns Va N
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flag to GNU Make. The value 0 means that the builder should use all available CPU cores in the system.
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.
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.It Fl -option Ar name value
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Set the Nix configuration option
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.Ar name
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to
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.Ar value Ns
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\&.
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.
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.It Fl -show-trace
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Causes Nix to print out a stack trace in case of Nix expression evaluation errors.
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.
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.It Fl -keep-going
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Causes Nix to continue building derivations as far as possible in the face of failed builds.
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.
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.It Fl -help
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Synonym for
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.Ic man nixos-install Ns
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\&.
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.El
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.
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.
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.
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.Sh EXAMPLES
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A typical NixOS installation is done by creating and mounting a file system on
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.Pa /mnt Ns
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, generating a NixOS configuration in
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.Pa /mnt/etc/nixos/configuration.nix Ns
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, and running
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.Nm Ns
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\&. For instance, if we want to install NixOS on an ext4 file system created in
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.Pa /dev/sda1 Ns
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:
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.Bd -literal -offset indent
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$ mkfs.ext4 /dev/sda1
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$ mount /dev/sda1 /mnt
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$ nixos-generate-config --root /mnt
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$ # edit /mnt/etc/nixos/configuration.nix
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$ nixos-install
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$ reboot
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.Ed
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.
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.
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.
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.Sh AUTHORS
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.An -nosplit
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.An Eelco Dolstra
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and
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.An the Nixpkgs/NixOS contributors
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