* Manual.

This commit is contained in:
Eelco Dolstra 2006-09-29 11:03:16 +00:00
parent 30c7db85d8
commit 070e07ed5a
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@ -148,6 +148,20 @@ $ rm -rf /nix/var</screen>
</section> </section>
<section><info><title>Upgrading Nix through Nix</title></info>
<para>You can install the latest stable version of Nix through Nix
itself by subscribing to the channel <link
xlink:href="http://nix.cs.uu.nl/dist/nix/channels-v3/nix-stable" /> ,
or the latest unstable version by subscribing to the channel<link
xlink:href="http://nix.cs.uu.nl/dist/nix/channels-v3/nix-unstable" />.
You can also do a <link linkend="sec-one-click">one-click
installation</link> by clicking on the package links at <link
xlink:href="http://nix.cs.uu.nl/dist/nix/" />.</para>
</section>
<section><info><title>Permissions</title></info> <section><info><title>Permissions</title></info>
<para>All Nix operations must be performed under the user ID that owns <para>All Nix operations must be performed under the user ID that owns

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@ -9,6 +9,8 @@
<refsynopsisdiv> <refsynopsisdiv>
<cmdsynopsis> <cmdsynopsis>
<command>nix-collect-garbage</command> <command>nix-collect-garbage</command>
<arg><option>--delete-old</option></arg>
<arg><option>-d</option></arg>
<group choice='opt'> <group choice='opt'>
<arg choice='plain'><option>--print-roots</option></arg> <arg choice='plain'><option>--print-roots</option></arg>
<arg choice='plain'><option>--print-live</option></arg> <arg choice='plain'><option>--print-live</option></arg>
@ -20,10 +22,28 @@
<refsection><title>Description</title> <refsection><title>Description</title>
<para>The command <command>nix-collect-garbage</command> is an <para>The command <command>nix-collect-garbage</command> is mostly an
obsolete wrapper around <link alias of <link linkend="rsec-nix-store-gc"><command>nix-store
linkend="rsec-nix-store-gc"><command>nix-store --gc</command></link>, that is, it deletes all unreachable paths in
--gc</command></link>.</para> the Nix store to clean up your system. However, it provides an
additional option <option>-d</option> (<option>--delete-old</option>)
that deletes all old generations of all profiles in
<filename>/nix/var/nix/profiles</filename> by invoking
<literal>nix-env --delete-generations old</literal> on all profiles.
Of course, this makes rollbacks to previous configurations
impossible.</para>
</refsection>
<refsection><title>Example</title>
<para>To delete from the Nix store everything that is not used by the
current generations of each profile, do
<screen>
$ nix-collect-garbage -d</screen>
</para>
</refsection> </refsection>

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@ -44,7 +44,7 @@ xlink:href='http://nix.cs.uu.nl/dist/nix' />.</para>
Packages, you can view the set of available components in the release: Packages, you can view the set of available components in the release:
<screen> <screen>
$ nix-env -qaf nixpkgs-<replaceable>version</replaceable> $ nix-env -qaf nixpkgs-<replaceable>version</replaceable> '*'
ant-blackdown-1.4.2 ant-blackdown-1.4.2
aterm-2.2 aterm-2.2
bash-3.0 bash-3.0
@ -62,7 +62,7 @@ available components, i.e., whether they are installed into the user
environment and/or present in the system: environment and/or present in the system:
<screen> <screen>
$ nix-env -qasf nixpkgs-<replaceable>version</replaceable> $ nix-env -qasf nixpkgs-<replaceable>version</replaceable> '*'
... ...
-PS bash-3.0 -PS bash-3.0
--S binutils-2.15 --S binutils-2.15
@ -382,6 +382,19 @@ $ nix-store --gc --print-dead</screen>
Likewise, the option <option>--print-live</option> will show the paths Likewise, the option <option>--print-live</option> will show the paths
that <emphasis>wont</emphasis> be deleted.</para> that <emphasis>wont</emphasis> be deleted.</para>
<para>There is also a convenient little utility
<command>nix-collect-garbage</command>, which when invoked with the
<option>-d</option> (<option>--delete-old</option>) switch deletes all
old generations of all profiles in
<filename>/nix/var/nix/profiles</filename>. So
<screen>
$ nix-collect-garbage -d</screen>
is a quick and easy way to clean up your system.</para>
<section xml:id="ssec-gc-roots"><title>Garbage collector roots</title> <section xml:id="ssec-gc-roots"><title>Garbage collector roots</title>
@ -463,4 +476,11 @@ available in the subscribed channels.</para>
</section> </section>
<section xml:id="sec-one-click"><title>One-click installations</title>
<para>TODO</para>
</section>
</chapter> </chapter>

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@ -96,6 +96,16 @@ The latter command will upgrade each installed component for which
there is a “newer” version (as determined by comparing the version there is a “newer” version (as determined by comparing the version
numbers).</para></listitem> numbers).</para></listitem>
<listitem><para>You can also install specific packages directly from
your web browser. For instance, you can go to <link
xlink:href="http://nix.cs.uu.nl/dist/nix/nixpkgs-unstable-latest/" />
and click on any link for the individual packages for your platform.
Associate <literal>application/nix-package</literal> with the program
<filename>/nix/bin/nix-install-package</filename>. A window should
appear asking you whether its okay to install the package. Say
<literal>Y</literal>. The package and all its dependencies will be
installed.</para></listitem>
<listitem><para>If you're unhappy with the result of a <listitem><para>If you're unhappy with the result of a
<command>nix-env</command> action (e.g., an upgraded component turned <command>nix-env</command> action (e.g., an upgraded component turned
out not to work properly), you can go back: out not to work properly), you can go back: