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Manual: Document system.autoUpgrade

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Eelco Dolstra 2015-09-02 15:38:06 +02:00
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nixos/doc/manual/installation/upgrading.xml
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@ -107,4 +107,30 @@ newer Nix version, which may involve an upgrade of Nix’s database
schema. This cannot be undone easily, so in that case you will not be
able to go back to your original channel.</para></warning>
<section><title>Automatic Upgrades</title>
<para>You can keep a NixOS system up-to-date automatically by adding
the following to <filename>configuration.nix</filename>:
<programlisting>
system.autoUpgrade.enable = true;
</programlisting>
This enables a periodically executed systemd service named
<literal>nixos-upgrade.service</literal>. It runs
<command>nixos-rebuild switch --upgrade</command> to upgrade NixOS to
the latest version in the current channel. (To see when the service
runs, see <command>systemctl list-timers</command>.) You can also
specify a channel explicitly, e.g.
<programlisting>
system.autoUpgrade.channel = https://nixos.org/channels/nixos-15.09;
</programlisting>
</para>
</section>
</chapter>