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Re-word installation, and use "nixos-option --install" to generate a

Browse source 
template for configuration.nix which uses the result of
nixos-hardware-scan.

svn path=/nixos/trunk/; revision=23926
This commit is contained in:
Nicolas Pierron 2010-09-25 22:30:02 +00:00
parent 93029d3c4f
commit 26417566c4
1 changed files with 23 additions and 26 deletions
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49
doc/manual/installation.xml
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@ -133,39 +133,32 @@ $ lvcreate --size 1G --name smalldisk MyVolGroup</screen>
<listitem>
<para>The installation is declarative; you need to write a
description of the configuration that you want to be built and
activated. The configuration is specified in a Nix expression and
must be stored <emphasis>on the target file system</emphasis> in
<filename>/mnt/etc/nixos/configuration.nix</filename>. See
<filename>/etc/nixos/nixos/doc/config-examples</filename> for
example machine configurations. You can copy and edit one of
those (e.g., copy
<filename>/etc/nixos/nixos/doc/config-examples/basic.nix</filename>
to <filename>/mnt/etc/nixos/configuration.nix</filename>). See
<xref linkend="ch-options"/> for a list of the available
configuration options. The text editors <command>nano</command>
and <command>vim</command> are available.</para>
<para>Generate a template configuration for the target system:</para>
<para>In particular you need to specify a root file system in
<option>fileSystems</option> and the target device for the Grub
boot loader in <option>boot.grubDevice</option>.</para>
<para>The command <command>nixos-hardware-scan</command> can
<para>The command <command>nixos-option</command> can
generate an initial configuration file for you, i.e.,
<screen>
$ mkdir -p /mnt/etc/nixos
$ nixos-hardware-scan > /mnt/etc/nixos/configuration.nix</screen>
$ nixos-option --install</screen>
It tries to figure out the modules necessary for mounting the root
device, as well as various other hardware characteristics.
However, it doesn’t try to figure out the
However, it doesn’t try to figure out the
<option>fileSystems</option> option yet.</para>
<para>More examples of NixOS configurations for some actual
machines can be found at <link
xlink:href="https://svn.nixos.org/repos/nix/configurations/trunk/"/>.</para>
<para>Edit <filename>/mnt/etc/nixos/configuration.nix</filename> to
configure your system. The installation is declarative; you need to
write a description of the configuration that you want to be built and
activated. The configuration is specified in a Nix expression and must
be stored <emphasis>on the target file system</emphasis>. The text
editors <command>nano</command> and <command>vim</command> are
available.</para>
<para>You need to specify a root file system in
<option>fileSystems</option> and the target device for the Grub boot
loader in <option>boot.grubDevice</option>. See
<xref linkend="ch-options"/> for a list of the available configuration
options.</para>
<note><para>It is very important that you specify in the option
<option>boot.initrd.kernelModules</option> all kernel modules that
@ -178,6 +171,11 @@ $ nixos-hardware-scan > /mnt/etc/nixos/configuration.nix</screen>
<command>nixos-hardware-scan</command> should figure out the
required modules in most cases.</para></note>
<para>Examples are available in
<filename>/etc/nixos/nixos/doc/config-examples</filename> and some
actual NixOS configuration can be found at <link
xlink:href="https://svn.nixos.org/repos/nix/configurations/trunk/"/>.</para>
</listitem>
<listitem><para>If your machine has a limited amount of memory, you
@ -259,8 +257,7 @@ $ fdisk /dev/sda <lineannotation>(or whatever device you want to install on)</li
$ mke2fs -j -L nixos /dev/sda1 <lineannotation>(idem)</lineannotation>
$ mkswap -L swap /dev/sda2 <lineannotation>(idem)</lineannotation>
$ mount LABEL=nixos /mnt
$ mkdir -p /mnt/etc/nixos
$ nixos-hardware-scan > /mnt/etc/nixos/configuration.nix
$ nixos-option --install
$ nano /mnt/etc/nixos/configuration.nix
<lineannotation>(in particular, set the fileSystems and swapDevices options)</lineannotation>
$ nixos-install