Docs: init section Installation Device in chapter Profiles

nixos/doc/manual/configuration/profiles.xml

@@ -33,4 +33,5 @@
  <xi:include href="profiles/graphical.xml" />
  <xi:include href="profiles/hardened.xml" />
  <xi:include href="profiles/headless.xml" />
+ <xi:include href="profiles/installation-device.xml" />
 </chapter>

nixos/doc/manual/configuration/profiles/installation-device.xml

@@ -0,0 +1,35 @@
+
+<section xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
+         version="5.0"
+         xml:id="sec-profile-installation-device">
+ <title>Installation Device</title>
+ <para>
+  Provides a basic configuration for installation devices like CDs. This means
+  enabling hardware scans, using the <link linkend="sec-profile-clone-config">
+   Clone Config profile</link> to guarantee
+  <filename>/etc/nixos/configuration.nix</filename> exists (for
+  <command>nixos-rebuild</command> to work), a copy of the Nixpkgs channel
+  snapshot used to create the install media.
+ </para>
+ <para>
+  Additionally, documentation for <link linkend="opt-documentation.enable">
+   Nixpkgs</link> and <link linkend="opt-documentation.nixos.enable">NixOS
+   </link> are forcefully enabled (to override the
+   <link linkend="sec-profile-minimal">Minimal profile</link> preference); the
+   NixOS manual is shown automatically on TTY 8, sudo and udisks are disabled.
+   Autologin is enabled as root.
+ </para>
+ <para>
+  A message is shown to the user to start a display manager if needed,
+  ssh with <xref linkend="opt-services.openssh.permitRootLogin"/> are enabled (but
+  doesn't autostart). WPA Supplicant is also enabled without autostart.
+ </para>
+ <para>
+  Finally, vim is installed, root is set to not have a password, the kernel is
+  made more silent for remote public IP installs, and several settings are
+  tweaked so that the installer has a better chance of succeeding under
+  low-memory environments.
+ </para>
+</section>