a099ca4505
[Squashed commits to make git blame etc. more likely to work. -ED]
160 lines
5.9 KiB
XML
160 lines
5.9 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="sec-release-14.04">
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<title>Release 14.04 (“Baboon”, 2014/04/30)</title>
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<para>This is the second stable release branch of NixOS. In addition
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to numerous new and upgraded packages and modules, this release has
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the following highlights:
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<itemizedlist>
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<listitem><para>Installation on UEFI systems is now supported. See
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<xref linkend="sec-uefi-installation"/> for
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details.</para></listitem>
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<listitem><para>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 through
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the <option>systemd.unit.*</option> options.</para></listitem>
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<listitem><para>NixOS is now based on Glibc 2.19 and GCC
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4.8.</para></listitem>
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<listitem><para>The default Linux kernel has been updated to
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3.12.</para></listitem>
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<listitem><para>KDE has been updated to 4.12.</para></listitem>
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<listitem><para>GNOME 3.10 experimental support has been added.</para></listitem>
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<listitem><para>Nix has been updated to 1.7 (<link
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xlink:href="http://nixos.org/nix/manual/#ssec-relnotes-1.7">details</link>).</para></listitem>
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<listitem><para>NixOS now supports fully declarative management of
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users and groups. If you set <option>users.mutableUsers</option> to
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<literal>false</literal>, then the contents of
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<filename>/etc/passwd</filename> and <filename>/etc/group</filename>
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will be <link
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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 from
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<option>users.extraUsers</option> and run
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<command>nixos-rebuild</command>, the user account will cease to
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exist. Also, imperative commands for managing users and groups, such
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as <command>useradd</command>, are no longer available. If
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<option>users.mutableUsers</option> is <literal>true</literal> (the
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default), then behaviour is unchanged from NixOS
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13.10.</para></listitem>
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<listitem><para>NixOS now has basic container support, meaning you
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can easily run a NixOS instance as a container in a NixOS host
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system. These containers are suitable for testing and
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experimentation but not production use, since they’re not fully
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isolated from the host. See <xref linkend="ch-containers"/> for
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details.</para></listitem>
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<listitem><para>Systemd units provided by packages can now be
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overridden from 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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<programlisting>
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systemd.packages = [ pkgs.foo ];
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</programlisting>
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to enable those units. You can then set or override unit options in
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the usual way, e.g.
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<programlisting>
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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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</programlisting>
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</para></listitem>
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</itemizedlist>
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</para>
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<para>When upgrading from a previous release, please be aware of the
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following incompatible changes:
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<itemizedlist>
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<listitem><para>Nixpkgs no longer exposes unfree packages by
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default. If your NixOS configuration requires unfree packages from
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Nixpkgs, you need to enable support for them explicitly by setting:
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<programlisting>
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nixpkgs.config.allowUnfree = true;
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</programlisting>
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Otherwise, you get an error message such as:
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<screen>
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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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</screen>
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</para></listitem>
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<listitem><para>The Adobe Flash player is no longer enabled by
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default in the Firefox and Chromium wrappers. To enable it, you must
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set:
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<programlisting>
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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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</programlisting>
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</para></listitem>
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<listitem><para>The firewall is now enabled by default. If you don’t
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want this, you need to disable it explicitly:
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<programlisting>
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networking.firewall.enable = false;
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</programlisting>
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</para></listitem>
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<listitem><para>The option
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<option>boot.loader.grub.memtest86</option> has been renamed to
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<option>boot.loader.grub.memtest86.enable</option>.</para></listitem>
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<listitem><para>The <literal>mysql55</literal> service has been
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merged into the <literal>mysql</literal> service, which no longer
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sets a default for the option
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<option>services.mysql.package</option>.</para></listitem>
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<listitem><para>Package variants are now differentiated by suffixing
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the name, rather than the version. For instance,
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<filename>sqlite-3.8.4.3-interactive</filename> is now called
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<filename>sqlite-interactive-3.8.4.3</filename>. 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 “upgrade”
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<literal>sqlite</literal> to <literal>sqlite-interactive</literal>
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or vice versa. Notably, this change affects the Firefox wrapper
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(which provides plugins), as it is now called
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<literal>firefox-wrapper</literal>. So when using
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<command>nix-env</command>, you should do <literal>nix-env -e
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firefox; nix-env -i firefox-wrapper</literal> if you want to keep
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using the wrapper. This change does not affect declarative package
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management, since attribute names like
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<literal>pkgs.firefoxWrapper</literal> were already
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unambiguous.</para></listitem>
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<listitem><para>The symlink <filename>/etc/ca-bundle.crt</filename>
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is gone. Programs should instead use the environment variable
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<envar>OPENSSL_X509_CERT_FILE</envar> (which points to
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<filename>/etc/ssl/certs/ca-bundle.crt</filename>).</para></listitem>
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</itemizedlist>
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</para>
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</chapter> |