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-rw-r--r--nixos/doc/manual/installation/installing-behind-a-proxy.section.md29
-rw-r--r--nixos/doc/manual/installation/installing-behind-a-proxy.xml48
-rw-r--r--nixos/doc/manual/installation/installing-from-other-distro.section.md279
-rw-r--r--nixos/doc/manual/installation/installing-from-other-distro.xml364
-rw-r--r--nixos/doc/manual/installation/installing-pxe.section.md32
-rw-r--r--nixos/doc/manual/installation/installing-pxe.xml50
-rw-r--r--nixos/doc/manual/installation/installing-usb.section.md31
-rw-r--r--nixos/doc/manual/installation/installing-usb.xml40
-rw-r--r--nixos/doc/manual/installation/installing-virtualbox-guest.section.md59
-rw-r--r--nixos/doc/manual/installation/installing-virtualbox-guest.xml103
-rw-r--r--nixos/doc/manual/installation/installing.xml10
11 files changed, 435 insertions, 610 deletions
diff --git a/nixos/doc/manual/installation/installing-behind-a-proxy.section.md b/nixos/doc/manual/installation/installing-behind-a-proxy.section.md
new file mode 100644
index 000000000000..aca151531d0f
--- /dev/null
+++ b/nixos/doc/manual/installation/installing-behind-a-proxy.section.md
@@ -0,0 +1,29 @@
+# Installing behind a proxy {#sec-installing-behind-proxy}
+
+To install NixOS behind a proxy, do the following before running
+`nixos-install`.
+
+1. Update proxy configuration in `/mnt/etc/nixos/configuration.nix` to
+ keep the internet accessible after reboot.
+
+ ```nix
+ networking.proxy.default = "http://user:password@proxy:port/";
+ networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+ ```
+
+1. Setup the proxy environment variables in the shell where you are
+ running `nixos-install`.
+
+ ```ShellSession
+ # proxy_url="http://user:password@proxy:port/"
+ # export http_proxy="$proxy_url"
+ # export HTTP_PROXY="$proxy_url"
+ # export https_proxy="$proxy_url"
+ # export HTTPS_PROXY="$proxy_url"
+ ```
+
+::: {.note}
+If you are switching networks with different proxy configurations, use
+the `specialisation` option in `configuration.nix` to switch proxies at
+runtime. Refer to [](#ch-options) for more information.
+:::
diff --git a/nixos/doc/manual/installation/installing-behind-a-proxy.xml b/nixos/doc/manual/installation/installing-behind-a-proxy.xml
deleted file mode 100644
index 6788882aa8c0..000000000000
--- a/nixos/doc/manual/installation/installing-behind-a-proxy.xml
+++ /dev/null
@@ -1,48 +0,0 @@
-<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-installing-behind-proxy">
- <title>Installing behind a proxy</title>
-
- <para>
- To install NixOS behind a proxy, do the following before running
- <literal>nixos-install</literal>.
- </para>
-
- <orderedlist numeration="arabic">
- <listitem>
- <para>
- Update proxy configuration in
- <literal>/mnt/etc/nixos/configuration.nix</literal> to keep the internet
- accessible after reboot.
- </para>
-<programlisting>
-networking.proxy.default = &quot;http://user:password@proxy:port/&quot;;
-networking.proxy.noProxy = &quot;127.0.0.1,localhost,internal.domain&quot;;
-</programlisting>
- </listitem>
- <listitem>
- <para>
- Setup the proxy environment variables in the shell where you are running
- <literal>nixos-install</literal>.
- </para>
-<screen>
-<prompt># </prompt>proxy_url=&quot;http://user:password@proxy:port/&quot;
-<prompt># </prompt>export http_proxy=&quot;$proxy_url&quot;
-<prompt># </prompt>export HTTP_PROXY=&quot;$proxy_url&quot;
-<prompt># </prompt>export https_proxy=&quot;$proxy_url&quot;
-<prompt># </prompt>export HTTPS_PROXY=&quot;$proxy_url&quot;
-</screen>
- </listitem>
- </orderedlist>
-
- <note>
- <para>
- If you are switching networks with different proxy configurations, use the
- <literal>specialisation</literal> option in
- <literal>configuration.nix</literal> to switch proxies at runtime. Refer to
- <xref linkend="ch-options" /> for more information.
- </para>
- </note>
-</section>
diff --git a/nixos/doc/manual/installation/installing-from-other-distro.section.md b/nixos/doc/manual/installation/installing-from-other-distro.section.md
new file mode 100644
index 000000000000..d9060eb89c37
--- /dev/null
+++ b/nixos/doc/manual/installation/installing-from-other-distro.section.md
@@ -0,0 +1,279 @@
+# Installing from another Linux distribution {#sec-installing-from-other-distro}
+
+Because Nix (the package manager) & Nixpkgs (the Nix packages
+collection) can both be installed on any (most?) Linux distributions,
+they can be used to install NixOS in various creative ways. You can, for
+instance:
+
+1. Install NixOS on another partition, from your existing Linux
+ distribution (without the use of a USB or optical device!)
+
+1. Install NixOS on the same partition (in place!), from your existing
+ non-NixOS Linux distribution using `NIXOS_LUSTRATE`.
+
+1. Install NixOS on your hard drive from the Live CD of any Linux
+ distribution.
+
+The first steps to all these are the same:
+
+1. Install the Nix package manager:
+
+ Short version:
+
+ ```ShellSession
+ $ curl -L https://nixos.org/nix/install | sh
+ $ . $HOME/.nix-profile/etc/profile.d/nix.sh # …or open a fresh shell
+ ```
+
+ More details in the [ Nix
+ manual](https://nixos.org/nix/manual/#chap-quick-start)
+
+1. Switch to the NixOS channel:
+
+ If you\'ve just installed Nix on a non-NixOS distribution, you will
+ be on the `nixpkgs` channel by default.
+
+ ```ShellSession
+ $ nix-channel --list
+ nixpkgs https://nixos.org/channels/nixpkgs-unstable
+ ```
+
+ As that channel gets released without running the NixOS tests, it
+ will be safer to use the `nixos-*` channels instead:
+
+ ```ShellSession
+ $ nix-channel --add https://nixos.org/channels/nixos-version nixpkgs
+ ```
+
+ You may want to throw in a `nix-channel --update` for good measure.
+
+1. Install the NixOS installation tools:
+
+ You\'ll need `nixos-generate-config` and `nixos-install`, but this
+ also makes some man pages and `nixos-enter` available, just in case
+ you want to chroot into your NixOS partition. NixOS installs these
+ by default, but you don\'t have NixOS yet..
+
+ ```ShellSession
+ $ nix-env -f '<nixpkgs>' -iA nixos-install-tools
+ ```
+
+1. ::: {.note}
+ The following 5 steps are only for installing NixOS to another
+ partition. For installing NixOS in place using `NIXOS_LUSTRATE`,
+ skip ahead.
+ :::
+
+ Prepare your target partition:
+
+ At this point it is time to prepare your target partition. Please
+ refer to the partitioning, file-system creation, and mounting steps
+ of [](#sec-installation)
+
+ If you\'re about to install NixOS in place using `NIXOS_LUSTRATE`
+ there is nothing to do for this step.
+
+1. Generate your NixOS configuration:
+
+ ```ShellSession
+ $ sudo `which nixos-generate-config` --root /mnt
+ ```
+
+ You\'ll probably want to edit the configuration files. Refer to the
+ `nixos-generate-config` step in [](#sec-installation) for more
+ information.
+
+ Consider setting up the NixOS bootloader to give you the ability to
+ boot on your existing Linux partition. For instance, if you\'re
+ using GRUB and your existing distribution is running Ubuntu, you may
+ want to add something like this to your `configuration.nix`:
+
+ ```nix
+ boot.loader.grub.extraEntries = ''
+ menuentry "Ubuntu" {
+ search --set=ubuntu --fs-uuid 3cc3e652-0c1f-4800-8451-033754f68e6e
+ configfile "($ubuntu)/boot/grub/grub.cfg"
+ }
+ '';
+ ```
+
+ (You can find the appropriate UUID for your partition in
+ `/dev/disk/by-uuid`)
+
+1. Create the `nixbld` group and user on your original distribution:
+
+ ```ShellSession
+ $ sudo groupadd -g 30000 nixbld
+ $ sudo useradd -u 30000 -g nixbld -G nixbld nixbld
+ ```
+
+1. Download/build/install NixOS:
+
+ ::: {.warning}
+ Once you complete this step, you might no longer be able to boot on
+ existing systems without the help of a rescue USB drive or similar.
+ :::
+
+ ::: {.note}
+ On some distributions there are separate PATHS for programs intended
+ only for root. In order for the installation to succeed, you might
+ have to use `PATH="$PATH:/usr/sbin:/sbin"` in the following command.
+ :::
+
+ ```ShellSession
+ $ sudo PATH="$PATH" NIX_PATH="$NIX_PATH" `which nixos-install` --root /mnt
+ ```
+
+ Again, please refer to the `nixos-install` step in
+ [](#sec-installation) for more information.
+
+ That should be it for installation to another partition!
+
+1. Optionally, you may want to clean up your non-NixOS distribution:
+
+ ```ShellSession
+ $ sudo userdel nixbld
+ $ sudo groupdel nixbld
+ ```
+
+ If you do not wish to keep the Nix package manager installed either,
+ run something like `sudo rm -rv ~/.nix-* /nix` and remove the line
+ that the Nix installer added to your `~/.profile`.
+
+1. ::: {.note}
+ The following steps are only for installing NixOS in place using
+ `NIXOS_LUSTRATE`:
+ :::
+
+ Generate your NixOS configuration:
+
+ ```ShellSession
+ $ sudo `which nixos-generate-config` --root /
+ ```
+
+ Note that this will place the generated configuration files in
+ `/etc/nixos`. You\'ll probably want to edit the configuration files.
+ Refer to the `nixos-generate-config` step in
+ [](#sec-installation) for more information.
+
+ You\'ll likely want to set a root password for your first boot using
+ the configuration files because you won\'t have a chance to enter a
+ password until after you reboot. You can initalize the root password
+ to an empty one with this line: (and of course don\'t forget to set
+ one once you\'ve rebooted or to lock the account with
+ `sudo passwd -l root` if you use `sudo`)
+
+ ```nix
+ users.users.root.initialHashedPassword = "";
+ ```
+
+1. Build the NixOS closure and install it in the `system` profile:
+
+ ```ShellSession
+ $ nix-env -p /nix/var/nix/profiles/system -f '<nixpkgs/nixos>' -I nixos-config=/etc/nixos/configuration.nix -iA system
+ ```
+
+1. Change ownership of the `/nix` tree to root (since your Nix install
+ was probably single user):
+
+ ```ShellSession
+ $ sudo chown -R 0.0 /nix
+ ```
+
+1. Set up the `/etc/NIXOS` and `/etc/NIXOS_LUSTRATE` files:
+
+ `/etc/NIXOS` officializes that this is now a NixOS partition (the
+ bootup scripts require its presence).
+
+ `/etc/NIXOS_LUSTRATE` tells the NixOS bootup scripts to move
+ *everything* that\'s in the root partition to `/old-root`. This will
+ move your existing distribution out of the way in the very early
+ stages of the NixOS bootup. There are exceptions (we do need to keep
+ NixOS there after all), so the NixOS lustrate process will not
+ touch:
+
+ - The `/nix` directory
+
+ - The `/boot` directory
+
+ - Any file or directory listed in `/etc/NIXOS_LUSTRATE` (one per
+ line)
+
+ ::: {.note}
+ Support for `NIXOS_LUSTRATE` was added in NixOS 16.09. The act of
+ \"lustrating\" refers to the wiping of the existing distribution.
+ Creating `/etc/NIXOS_LUSTRATE` can also be used on NixOS to remove
+ all mutable files from your root partition (anything that\'s not in
+ `/nix` or `/boot` gets \"lustrated\" on the next boot.
+
+ lustrate /ˈlʌstreɪt/ verb.
+
+ purify by expiatory sacrifice, ceremonial washing, or some other
+ ritual action.
+ :::
+
+ Let\'s create the files:
+
+ ```ShellSession
+ $ sudo touch /etc/NIXOS
+ $ sudo touch /etc/NIXOS_LUSTRATE
+ ```
+
+ Let\'s also make sure the NixOS configuration files are kept once we
+ reboot on NixOS:
+
+ ```ShellSession
+ $ echo etc/nixos | sudo tee -a /etc/NIXOS_LUSTRATE
+ ```
+
+1. Finally, move the `/boot` directory of your current distribution out
+ of the way (the lustrate process will take care of the rest once you
+ reboot, but this one must be moved out now because NixOS needs to
+ install its own boot files:
+
+ ::: {.warning}
+ Once you complete this step, your current distribution will no
+ longer be bootable! If you didn\'t get all the NixOS configuration
+ right, especially those settings pertaining to boot loading and root
+ partition, NixOS may not be bootable either. Have a USB rescue
+ device ready in case this happens.
+ :::
+
+ ```ShellSession
+ $ sudo mv -v /boot /boot.bak &&
+ sudo /nix/var/nix/profiles/system/bin/switch-to-configuration boot
+ ```
+
+ Cross your fingers, reboot, hopefully you should get a NixOS prompt!
+
+1. If for some reason you want to revert to the old distribution,
+ you\'ll need to boot on a USB rescue disk and do something along
+ these lines:
+
+ ```ShellSession
+ # mkdir root
+ # mount /dev/sdaX root
+ # mkdir root/nixos-root
+ # mv -v root/* root/nixos-root/
+ # mv -v root/nixos-root/old-root/* root/
+ # mv -v root/boot.bak root/boot # We had renamed this by hand earlier
+ # umount root
+ # reboot
+ ```
+
+ This may work as is or you might also need to reinstall the boot
+ loader.
+
+ And of course, if you\'re happy with NixOS and no longer need the
+ old distribution:
+
+ ```ShellSession
+ sudo rm -rf /old-root
+ ```
+
+1. It\'s also worth noting that this whole process can be automated.
+ This is especially useful for Cloud VMs, where provider do not
+ provide NixOS. For instance,
+ [nixos-infect](https://github.com/elitak/nixos-infect) uses the
+ lustrate process to convert Digital Ocean droplets to NixOS from
+ other distributions automatically.
diff --git a/nixos/doc/manual/installation/installing-from-other-distro.xml b/nixos/doc/manual/installation/installing-from-other-distro.xml
deleted file mode 100644
index 63d1d52b01b2..000000000000
--- a/nixos/doc/manual/installation/installing-from-other-distro.xml
+++ /dev/null
@@ -1,364 +0,0 @@
-<!-- vim: set expandtab ts=2 softtabstop=2 shiftwidth=2 smarttab textwidth=80 wrapmargin=2 -->
-<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-installing-from-other-distro">
- <title>Installing from another Linux distribution</title>
-
- <para>
- Because Nix (the package manager) &amp; Nixpkgs (the Nix packages collection)
- can both be installed on any (most?) Linux distributions, they can be used to
- install NixOS in various creative ways. You can, for instance:
- </para>
-
- <orderedlist>
- <listitem>
- <para>
- Install NixOS on another partition, from your existing Linux distribution
- (without the use of a USB or optical device!)
- </para>
- </listitem>
- <listitem>
- <para>
- Install NixOS on the same partition (in place!), from your existing
- non-NixOS Linux distribution using <literal>NIXOS_LUSTRATE</literal>.
- </para>
- </listitem>
- <listitem>
- <para>
- Install NixOS on your hard drive from the Live CD of any Linux
- distribution.
- </para>
- </listitem>
- </orderedlist>
-
- <para>
- The first steps to all these are the same:
- </para>
-
- <orderedlist>
- <listitem>
- <para>
- Install the Nix package manager:
- </para>
- <para>
- Short version:
- </para>
-<screen>
-<prompt>$ </prompt>curl -L https://nixos.org/nix/install | sh
-<prompt>$ </prompt>. $HOME/.nix-profile/etc/profile.d/nix.sh # …or open a fresh shell</screen>
- <para>
- More details in the
- <link
- xlink:href="https://nixos.org/nix/manual/#chap-quick-start">
- Nix manual</link>
- </para>
- </listitem>
- <listitem>
- <para>
- Switch to the NixOS channel:
- </para>
- <para>
- If you've just installed Nix on a non-NixOS distribution, you will be on
- the <literal>nixpkgs</literal> channel by default.
- </para>
-<screen>
-<prompt>$ </prompt>nix-channel --list
-nixpkgs https://nixos.org/channels/nixpkgs-unstable</screen>
- <para>
- As that channel gets released without running the NixOS tests, it will be
- safer to use the <literal>nixos-*</literal> channels instead:
- </para>
-<screen>
-<prompt>$ </prompt>nix-channel --add https://nixos.org/channels/nixos-<replaceable>version</replaceable> nixpkgs</screen>
- <para>
- You may want to throw in a <literal>nix-channel --update</literal> for good
- measure.
- </para>
- </listitem>
- <listitem>
- <para>
- Install the NixOS installation tools:
- </para>
- <para>
- You'll need <literal>nixos-generate-config</literal> and
- <literal>nixos-install</literal>, but this also makes some man pages
- and <literal>nixos-enter</literal> available, just in case you want to chroot into your
- NixOS partition. NixOS installs these by default, but you don't have
- NixOS yet..
- </para>
- <screen><prompt>$ </prompt>nix-env -f '&lt;nixpkgs>' -iA nixos-install-tools</screen>
- </listitem>
- <listitem>
- <note>
- <para>
- The following 5 steps are only for installing NixOS to another partition.
- For installing NixOS in place using <literal>NIXOS_LUSTRATE</literal>,
- skip ahead.
- </para>
- </note>
- <para>
- Prepare your target partition:
- </para>
- <para>
- At this point it is time to prepare your target partition. Please refer to
- the partitioning, file-system creation, and mounting steps of
- <xref linkend="sec-installation" />
- </para>
- <para>
- If you're about to install NixOS in place using
- <literal>NIXOS_LUSTRATE</literal> there is nothing to do for this step.
- </para>
- </listitem>
- <listitem>
- <para>
- Generate your NixOS configuration:
- </para>
-<screen><prompt>$ </prompt>sudo `which nixos-generate-config` --root /mnt</screen>
- <para>
- You'll probably want to edit the configuration files. Refer to the
- <literal>nixos-generate-config</literal> step in
- <xref
- linkend="sec-installation" /> for more
- information.
- </para>
- <para>
- Consider setting up the NixOS bootloader to give you the ability to boot on
- your existing Linux partition. For instance, if you're using GRUB and your
- existing distribution is running Ubuntu, you may want to add something like
- this to your <literal>configuration.nix</literal>:
- </para>
-<programlisting>
-<xref linkend="opt-boot.loader.grub.extraEntries"/> = ''
- menuentry "Ubuntu" {
- search --set=ubuntu --fs-uuid 3cc3e652-0c1f-4800-8451-033754f68e6e
- configfile "($ubuntu)/boot/grub/grub.cfg"
- }
-'';</programlisting>
- <para>
- (You can find the appropriate UUID for your partition in
- <literal>/dev/disk/by-uuid</literal>)
- </para>
- </listitem>
- <listitem>
- <para>
- Create the <literal>nixbld</literal> group and user on your original
- distribution:
- </para>
-<screen>
-<prompt>$ </prompt>sudo groupadd -g 30000 nixbld
-<prompt>$ </prompt>sudo useradd -u 30000 -g nixbld -G nixbld nixbld</screen>
- </listitem>
- <listitem>
- <para>
- Download/build/install NixOS:
- </para>
- <warning>
- <para>
- Once you complete this step, you might no longer be able to boot on
- existing systems without the help of a rescue USB drive or similar.
- </para>
- </warning>
- <note>
- <para>
- On some distributions there are separate PATHS for programs intended only for root.
- In order for the installation to succeed, you might have to use <literal>PATH="$PATH:/usr/sbin:/sbin"</literal>
- in the following command.
- </para>
- </note>
-<screen><prompt>$ </prompt>sudo PATH="$PATH" NIX_PATH="$NIX_PATH" `which nixos-install` --root /mnt</screen>
- <para>
- Again, please refer to the <literal>nixos-install</literal> step in
- <xref linkend="sec-installation" /> for more information.
- </para>
- <para>
- That should be it for installation to another partition!
- </para>
- </listitem>
- <listitem>
- <para>
- Optionally, you may want to clean up your non-NixOS distribution:
- </para>
-<screen>
-<prompt>$ </prompt>sudo userdel nixbld
-<prompt>$ </prompt>sudo groupdel nixbld</screen>
- <para>
- If you do not wish to keep the Nix package manager installed either, run
- something like <literal>sudo rm -rv ~/.nix-* /nix</literal> and remove the
- line that the Nix installer added to your <literal>~/.profile</literal>.
- </para>
- </listitem>
- <listitem>
- <note>
- <para>
- The following steps are only for installing NixOS in place using
- <literal>NIXOS_LUSTRATE</literal>:
- </para>
- </note>
- <para>
- Generate your NixOS configuration:
- </para>
-<screen><prompt>$ </prompt>sudo `which nixos-generate-config` --root /</screen>
- <para>
- Note that this will place the generated configuration files in
- <literal>/etc/nixos</literal>. You'll probably want to edit the
- configuration files. Refer to the <literal>nixos-generate-config</literal>
- step in <xref
- linkend="sec-installation" /> for more
- information.
- </para>
- <para>
- You'll likely want to set a root password for your first boot using the
- configuration files because you won't have a chance to enter a password
- until after you reboot. You can initalize the root password to an empty one
- with this line: (and of course don't forget to set one once you've rebooted
- or to lock the account with <literal>sudo passwd -l root</literal> if you
- use <literal>sudo</literal>)
- </para>
-<programlisting>
-<link linkend="opt-users.users._name_.initialHashedPassword">users.users.root.initialHashedPassword</link> = "";
-</programlisting>
- </listitem>
- <listitem>
- <para>
- Build the NixOS closure and install it in the <literal>system</literal>
- profile:
- </para>
-<screen><prompt>$ </prompt>nix-env -p /nix/var/nix/profiles/system -f '&lt;nixpkgs/nixos&gt;' -I nixos-config=/etc/nixos/configuration.nix -iA system</screen>
- </listitem>
- <listitem>
- <para>
- Change ownership of the <literal>/nix</literal> tree to root (since your
- Nix install was probably single user):
- </para>
-<screen><prompt>$ </prompt>sudo chown -R 0.0 /nix</screen>
- </listitem>
- <listitem>
- <para>
- Set up the <literal>/etc/NIXOS</literal> and
- <literal>/etc/NIXOS_LUSTRATE</literal> files:
- </para>
- <para>
- <literal>/etc/NIXOS</literal> officializes that this is now a NixOS
- partition (the bootup scripts require its presence).
- </para>
- <para>
- <literal>/etc/NIXOS_LUSTRATE</literal> tells the NixOS bootup scripts to
- move <emphasis>everything</emphasis> that's in the root partition to
- <literal>/old-root</literal>. This will move your existing distribution out
- of the way in the very early stages of the NixOS bootup. There are
- exceptions (we do need to keep NixOS there after all), so the NixOS
- lustrate process will not touch:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- The <literal>/nix</literal> directory
- </para>
- </listitem>
- <listitem>
- <para>
- The <literal>/boot</literal> directory
- </para>
- </listitem>
- <listitem>
- <para>
- Any file or directory listed in <literal>/etc/NIXOS_LUSTRATE</literal>
- (one per line)
- </para>
- </listitem>
- </itemizedlist>
- <note>
- <para>
- Support for <literal>NIXOS_LUSTRATE</literal> was added in NixOS 16.09.
- The act of "lustrating" refers to the wiping of the existing distribution.
- Creating <literal>/etc/NIXOS_LUSTRATE</literal> can also be used on NixOS
- to remove all mutable files from your root partition (anything that's not
- in <literal>/nix</literal> or <literal>/boot</literal> gets "lustrated" on
- the next boot.
- </para>
- <para>
- lustrate /ˈlʌstreɪt/ verb.
- </para>
- <para>
- purify by expiatory sacrifice, ceremonial washing, or some other ritual
- action.
- </para>
- </note>
- <para>
- Let's create the files:
- </para>
-<screen>
-<prompt>$ </prompt>sudo touch /etc/NIXOS
-<prompt>$ </prompt>sudo touch /etc/NIXOS_LUSTRATE
-</screen>
- <para>
- Let's also make sure the NixOS configuration files are kept once we reboot
- on NixOS:
- </para>
-<screen>
-<prompt>$ </prompt>echo etc/nixos | sudo tee -a /etc/NIXOS_LUSTRATE
-</screen>
- </listitem>
- <listitem>
- <para>
- Finally, move the <literal>/boot</literal> directory of your current
- distribution out of the way (the lustrate process will take care of the
- rest once you reboot, but this one must be moved out now because NixOS
- needs to install its own boot files:
- </para>
- <warning>
- <para>
- Once you complete this step, your current distribution will no longer be
- bootable! If you didn't get all the NixOS configuration right, especially
- those settings pertaining to boot loading and root partition, NixOS may
- not be bootable either. Have a USB rescue device ready in case this
- happens.
- </para>
- </warning>
-<screen>
-<prompt>$ </prompt>sudo mv -v /boot /boot.bak &amp;&amp;
-sudo /nix/var/nix/profiles/system/bin/switch-to-configuration boot
-</screen>
- <para>
- Cross your fingers, reboot, hopefully you should get a NixOS prompt!
- </para>
- </listitem>
- <listitem>
- <para>
- If for some reason you want to revert to the old distribution, you'll need
- to boot on a USB rescue disk and do something along these lines:
- </para>
-<screen>
-<prompt># </prompt>mkdir root
-<prompt># </prompt>mount /dev/sdaX root
-<prompt># </prompt>mkdir root/nixos-root
-<prompt># </prompt>mv -v root/* root/nixos-root/
-<prompt># </prompt>mv -v root/nixos-root/old-root/* root/
-<prompt># </prompt>mv -v root/boot.bak root/boot # We had renamed this by hand earlier
-<prompt># </prompt>umount root
-<prompt># </prompt>reboot</screen>
- <para>
- This may work as is or you might also need to reinstall the boot loader
- </para>
- <para>
- And of course, if you're happy with NixOS and no longer need the old
- distribution:
- </para>
-<screen>sudo rm -rf /old-root</screen>
- </listitem>
- <listitem>
- <para>
- It's also worth noting that this whole process can be automated. This is
- especially useful for Cloud VMs, where provider do not provide NixOS. For
- instance,
- <link
- xlink:href="https://github.com/elitak/nixos-infect">nixos-infect</link>
- uses the lustrate process to convert Digital Ocean droplets to NixOS from
- other distributions automatically.
- </para>
- </listitem>
- </orderedlist>
-</section>
diff --git a/nixos/doc/manual/installation/installing-pxe.section.md b/nixos/doc/manual/installation/installing-pxe.section.md
new file mode 100644
index 000000000000..2016a258251f
--- /dev/null
+++ b/nixos/doc/manual/installation/installing-pxe.section.md
@@ -0,0 +1,32 @@
+# Booting from the "netboot" media (PXE) {#sec-booting-from-pxe}
+
+Advanced users may wish to install NixOS using an existing PXE or iPXE
+setup.
+
+These instructions assume that you have an existing PXE or iPXE
+infrastructure and simply want to add the NixOS installer as another
+option. To build the necessary files from a recent version of nixpkgs,
+you can run:
+
+```ShellSession
+nix-build -A netboot.x86_64-linux nixos/release.nix
+```
+
+This will create a `result` directory containing: \* `bzImage` -- the
+Linux kernel \* `initrd` -- the initrd file \* `netboot.ipxe` -- an
+example ipxe script demonstrating the appropriate kernel command line
+arguments for this image
+
+If you're using plain PXE, configure your boot loader to use the
+`bzImage` and `initrd` files and have it provide the same kernel command
+line arguments found in `netboot.ipxe`.
+
+If you're using iPXE, depending on how your HTTP/FTP/etc. server is
+configured you may be able to use `netboot.ipxe` unmodified, or you may
+need to update the paths to the files to match your server's directory
+layout.
+
+In the future we may begin making these files available as build
+products from hydra at which point we will update this documentation
+with instructions on how to obtain them either for placing on a
+dedicated TFTP server or to boot them directly over the internet.
diff --git a/nixos/doc/manual/installation/installing-pxe.xml b/nixos/doc/manual/installation/installing-pxe.xml
deleted file mode 100644
index ea88fbdad7e2..000000000000
--- a/nixos/doc/manual/installation/installing-pxe.xml
+++ /dev/null
@@ -1,50 +0,0 @@
-<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-booting-from-pxe">
- <title>Booting from the <quote>netboot</quote> media (PXE)</title>
-
- <para>
- Advanced users may wish to install NixOS using an existing PXE or iPXE setup.
- </para>
-
- <para>
- These instructions assume that you have an existing PXE or iPXE
- infrastructure and simply want to add the NixOS installer as another option.
- To build the necessary files from a recent version of nixpkgs, you can run:
- </para>
-
-<programlisting>
-nix-build -A netboot.x86_64-linux nixos/release.nix
-</programlisting>
-
- <para>
- This will create a <literal>result</literal> directory containing: *
- <literal>bzImage</literal> – the Linux kernel * <literal>initrd</literal>
- – the initrd file * <literal>netboot.ipxe</literal> – an example ipxe
- script demonstrating the appropriate kernel command line arguments for this
- image
- </para>
-
- <para>
- If you’re using plain PXE, configure your boot loader to use the
- <literal>bzImage</literal> and <literal>initrd</literal> files and have it
- provide the same kernel command line arguments found in
- <literal>netboot.ipxe</literal>.
- </para>
-
- <para>
- If you’re using iPXE, depending on how your HTTP/FTP/etc. server is
- configured you may be able to use <literal>netboot.ipxe</literal> unmodified,
- or you may need to update the paths to the files to match your server’s
- directory layout
- </para>
-
- <para>
- In the future we may begin making these files available as build products
- from hydra at which point we will update this documentation with instructions
- on how to obtain them either for placing on a dedicated TFTP server or to
- boot them directly over the internet.
- </para>
-</section>
diff --git a/nixos/doc/manual/installation/installing-usb.section.md b/nixos/doc/manual/installation/installing-usb.section.md
new file mode 100644
index 000000000000..ae58c08e5237
--- /dev/null
+++ b/nixos/doc/manual/installation/installing-usb.section.md
@@ -0,0 +1,31 @@
+# Booting from a USB Drive {#sec-booting-from-usb}
+
+For systems without CD drive, the NixOS live CD can be booted from a USB
+stick. You can use the `dd` utility to write the image:
+`dd if=path-to-image of=/dev/sdX`. Be careful about specifying the correct
+drive; you can use the `lsblk` command to get a list of block devices.
+
+::: {.note}
+::: {.title}
+On macOS
+:::
+
+```ShellSession
+$ diskutil list
+[..]
+/dev/diskN (external, physical):
+ #: