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189 lines
6.8 KiB
189 lines
6.8 KiB
<section xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-release-14.04">
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<title>Release 14.04 (<quote>Baboon</quote>, 2014/04/30)</title>
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<para>
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This is the second stable release branch of NixOS. In addition to
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numerous new and upgraded packages and modules, this release has the
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following highlights:
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</para>
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<itemizedlist>
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<listitem>
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<para>
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Installation on UEFI systems is now supported. See
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<xref linkend="sec-installation" /> for details.
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</para>
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</listitem>
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<listitem>
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<para>
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Systemd has been updated to version 212, which has
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<link xlink:href="http://cgit.freedesktop.org/systemd/systemd/plain/NEWS?id=v212">numerous
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improvements</link>. NixOS now automatically starts systemd user
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instances when you log in. You can define global user units
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through the <literal>systemd.unit.*</literal> options.
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</para>
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</listitem>
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<listitem>
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<para>
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NixOS is now based on Glibc 2.19 and GCC 4.8.
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</para>
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</listitem>
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<listitem>
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<para>
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The default Linux kernel has been updated to 3.12.
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</para>
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</listitem>
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<listitem>
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<para>
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KDE has been updated to 4.12.
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</para>
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</listitem>
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<listitem>
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<para>
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GNOME 3.10 experimental support has been added.
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</para>
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</listitem>
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<listitem>
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<para>
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Nix has been updated to 1.7
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(<link xlink:href="https://nixos.org/nix/manual/#ssec-relnotes-1.7">details</link>).
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</para>
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</listitem>
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<listitem>
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<para>
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NixOS now supports fully declarative management of users and
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groups. If you set <literal>users.mutableUsers</literal> to
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<literal>false</literal>, then the contents of
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<literal>/etc/passwd</literal> and <literal>/etc/group</literal>
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will be
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<link xlink:href="https://www.usenix.org/legacy/event/lisa02/tech/full_papers/traugott/traugott_html/">congruent</link>
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to your NixOS configuration. For instance, if you remove a user
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from <literal>users.extraUsers</literal> and run
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<literal>nixos-rebuild</literal>, the user account will cease to
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exist. Also, imperative commands for managing users and groups,
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such as <literal>useradd</literal>, are no longer available. If
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<literal>users.mutableUsers</literal> is <literal>true</literal>
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(the default), then behaviour is unchanged from NixOS 13.10.
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</para>
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</listitem>
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<listitem>
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<para>
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NixOS now has basic container support, meaning you can easily
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run a NixOS instance as a container in a NixOS host system.
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These containers are suitable for testing and experimentation
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but not production use, since they’re not fully isolated from
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the host. See <xref linkend="ch-containers" /> for details.
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</para>
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</listitem>
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<listitem>
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<para>
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Systemd units provided by packages can now be overridden from
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the NixOS configuration. For instance, if a package
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<literal>foo</literal> provides systemd units, you can say:
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</para>
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<programlisting language="bash">
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{
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systemd.packages = [ pkgs.foo ];
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}
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</programlisting>
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<para>
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to enable those units. You can then set or override unit options
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in the usual way, e.g.
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</para>
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<programlisting language="bash">
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{
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systemd.services.foo.wantedBy = [ "multi-user.target" ];
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systemd.services.foo.serviceConfig.MemoryLimit = "512M";
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}
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</programlisting>
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<para>
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When upgrading from a previous release, please be aware of the
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following incompatible changes:
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</para>
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</listitem>
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<listitem>
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<para>
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Nixpkgs no longer exposes unfree packages by default. If your
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NixOS configuration requires unfree packages from Nixpkgs, you
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need to enable support for them explicitly by setting:
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</para>
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<programlisting language="bash">
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{
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nixpkgs.config.allowUnfree = true;
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}
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</programlisting>
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<para>
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Otherwise, you get an error message such as:
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</para>
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<programlisting>
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error: package ‘nvidia-x11-331.49-3.12.17’ in ‘…/nvidia-x11/default.nix:56’
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has an unfree license, refusing to evaluate
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</programlisting>
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</listitem>
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<listitem>
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<para>
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The Adobe Flash player is no longer enabled by default in the
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Firefox and Chromium wrappers. To enable it, you must set:
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</para>
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<programlisting language="bash">
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{
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nixpkgs.config.allowUnfree = true;
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nixpkgs.config.firefox.enableAdobeFlash = true; # for Firefox
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nixpkgs.config.chromium.enableAdobeFlash = true; # for Chromium
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}
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</programlisting>
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</listitem>
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<listitem>
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<para>
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The firewall is now enabled by default. If you don’t want this,
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you need to disable it explicitly:
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</para>
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<programlisting language="bash">
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{
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networking.firewall.enable = false;
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}
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</programlisting>
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</listitem>
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<listitem>
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<para>
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The option <literal>boot.loader.grub.memtest86</literal> has
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been renamed to
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<literal>boot.loader.grub.memtest86.enable</literal>.
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</para>
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</listitem>
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<listitem>
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<para>
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The <literal>mysql55</literal> service has been merged into the
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<literal>mysql</literal> service, which no longer sets a default
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for the option <literal>services.mysql.package</literal>.
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</para>
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</listitem>
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<listitem>
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<para>
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Package variants are now differentiated by suffixing the name,
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rather than the version. For instance,
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<literal>sqlite-3.8.4.3-interactive</literal> is now called
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<literal>sqlite-interactive-3.8.4.3</literal>. This ensures that
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<literal>nix-env -i sqlite</literal> is unambiguous, and that
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<literal>nix-env -u</literal> won’t <quote>upgrade</quote>
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<literal>sqlite</literal> to
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<literal>sqlite-interactive</literal> or vice versa. Notably,
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this change affects the Firefox wrapper (which provides
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plugins), as it is now called
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<literal>firefox-wrapper</literal>. So when using
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<literal>nix-env</literal>, you should do
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<literal>nix-env -e firefox; nix-env -i firefox-wrapper</literal>
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if you want to keep using the wrapper. This change does not
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affect declarative package management, since attribute names
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like <literal>pkgs.firefoxWrapper</literal> were already
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unambiguous.
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</para>
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</listitem>
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<listitem>
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<para>
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The symlink <literal>/etc/ca-bundle.crt</literal> is gone.
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Programs should instead use the environment variable
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<literal>OPENSSL_X509_CERT_FILE</literal> (which points to
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<literal>/etc/ssl/certs/ca-bundle.crt</literal>).
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</para>
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</listitem>
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</itemizedlist>
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</section>
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