Document small channels
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@ -14,8 +14,8 @@ been built. These channels are:
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<itemizedlist>
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<listitem>
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<para>Stable channels, such as <literal
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xlink:href="https://nixos.org/channels/nixos-14.04">nixos-14.04</literal>.
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<para><emphasis>Stable channels</emphasis>, such as <literal
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xlink:href="https://nixos.org/channels/nixos-14.12">nixos-14.12</literal>.
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These only get conservative bug fixes and package upgrades. For
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instance, a channel update may cause the Linux kernel on your
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system to be upgraded from 3.4.66 to 3.4.67 (a minor bug fix), but
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@ -23,14 +23,28 @@ been built. These channels are:
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3.11.<replaceable>x</replaceable> (a major change that has the
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potential to break things). Stable channels are generally
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maintained until the next stable branch is created.</para>
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<para></para>
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</listitem>
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<listitem>
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<para>The unstable channel, <literal
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<para>The <emphasis>unstable channel</emphasis>, <literal
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xlink:href="https://nixos.org/channels/nixos-unstable">nixos-unstable</literal>.
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This corresponds to NixOS’s main development branch, and may thus
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see radical changes between channel updates. It’s not recommended
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for production systems.</para>
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</listitem>
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<listitem>
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<para><emphasis>Small channels</emphasis>, such as <literal
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xlink:href="https://nixos.org/channels/nixos-14.12-small">nixos-14.12-small</literal>
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or <literal
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xlink:href="https://nixos.org/channels/nixos-unstable-small">nixos-unstable-small</literal>. These
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are identical to the stable and unstable channels described above,
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except that they contain fewer binary packages. This means they
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get updated faster than the regular channels (for instance, when a
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critical security patch is committed to NixOS’s source tree), but
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may require more packages to be built from source than
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usual. They’re mostly intended for server environments and as such
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contain few GUI applications.</para>
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</listitem>
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</itemizedlist>
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To see what channels are available, go to <link
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@ -41,8 +55,8 @@ appliances.)</para>
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<para>When you first install NixOS, you’re automatically subscribed to
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the NixOS channel that corresponds to your installation source. For
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instance, if you installed from a 14.04 ISO, you will be subscribed to
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the <literal>nixos-14.04</literal> channel. To see which NixOS
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instance, if you installed from a 14.12 ISO, you will be subscribed to
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the <literal>nixos-14.12</literal> channel. To see which NixOS
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channel you’re subscribed to, run the following as root:
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<screen>
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@ -57,13 +71,19 @@ $ nix-channel --add https://nixos.org/channels/<replaceable>channel-name</replac
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</screen>
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(Be sure to include the <literal>nixos</literal> parameter at the
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end.) For instance, to use the NixOS 14.04 stable channel:
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end.) For instance, to use the NixOS 14.12 stable channel:
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<screen>
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$ nix-channel --add https://nixos.org/channels/nixos-14.04 nixos
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$ nix-channel --add https://nixos.org/channels/nixos-14.12 nixos
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</screen>
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But if you want to live on the bleeding edge:
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If you have a server, you may want to use the “small” channel instead:
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<screen>
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$ nix-channel --add https://nixos.org/channels/nixos-14.12-small nixos
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</screen>
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And if you want to live on the bleeding edge:
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<screen>
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$ nix-channel --add https://nixos.org/channels/nixos-unstable nixos
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