update NEWS
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Lennart Poettering
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NEWS
139
NEWS
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systemd System and Service Manager
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CHANGES WITH 197:
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* Timer units now support calendar time events in addition to
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monotonic time events. That means you can now trigger a unit
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based on a calendar time specification such as "Thu,Fri
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2013-*-1,5 11:12:13" which refers to 11:12:13 of the first
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or fifth day of any month of the year 2013, given that it is
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a thursday or friday. This brings timer event support
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considerably closer to cron's capabilities. For details on
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the supported calendar time specification language see
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systemd.time(7).
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* udev now supports a number of different naming policies for
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network interfaces for predictable names, and a combination
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of these policies is now the default. Please see this wiki
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document for details:
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http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames
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* Auke Kok's bootchart implementation has been added to the
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systemd tree. It's an optional component that can graph the
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boot in quite some detail. It's one of the best bootchart
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implementations around and minimal in its code and
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dependencies.
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* nss-myhostname has been integrated into the systemd source
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tree. nss-myhostname guarantees that the local hostname
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always stays resolvable via NSS. It has been a weak
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requirement of systemd-hostnamed since a long time, and
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since its code is actually trivial we decided to just
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include it in systemd's source tree. It can be turned off
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with a configure switch.
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* The read-ahead logic is now capable of properly detecting
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whether a btrfs file system is on SSD or rotating media, in
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order to optimize the read-ahead scheme. Previously, it was
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only capable of detecting this on traditional file systems
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such as ext4.
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* In udev, additional device properties are now read from the
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IAB in addition to the OUI database. Also, Bluetooth company
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identities are attached to the devices as well.
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* In service files %U may be used as specifier that is
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replaced by the configured user name of the service.
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* nspawn may now be invoked without a controlling TTY. This
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makes it suitable for invocation as its own service. This
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may be used to set up a simple containerized server system
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using only core OS tools.
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* systemd and nspawn can now accept socket file descriptors
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when they are started for socket activation. This enables
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implementation of socket activated nspawn
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containers. i.e. think about autospawning an entire OS image
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when the first SSH or HTTP connection is received. We expect
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that similar functionality will also be added to libvirt-lxc
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eventually.
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* journalctl will now suppress ANSI color codes when
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presenting log data.
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* systemctl will no longer show control group information for
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a unit if a the control group is empty anyway.
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* logind can now automatically suspend/hibernate/shutdown the
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system on idle.
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* /etc/machine-info and hostnamed now also expose the chassis
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type of the system. This can be used to determine whether
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the local system is a laptop, desktop, handset or
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tablet. This information may either be configured by the
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user/vendor or is automatically determined from ACPI and DMI
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information if possible.
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* A number of PolicyKit actions are now bound together with
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"imply" rules. This should simplify creating UIs because
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many actions will now authenticate similar ones as well.
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* Unit files learnt a new condition ConditionACPower= which
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may be used to conditionalize a unit depending on whether an
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AC power source is connected or not, of whether the system
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is running on battery power.
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* systemctl gained a new "is-failed" verb that may be used in
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shell scripts and suchlike to check whether a specific unit
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is in the "failed" state.
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* The EnvironmentFile= setting in unit files now supports file
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globbing, and can hence be used to easily read a number of
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environment files at once.
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* systemd will no longer detect and recognize specific
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distributions. All distribution-specific #ifdeffery has been
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removed, systemd is now fully generic and
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distribution-agnostic. Effectively, not too much is lost as
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a lot of the code is still accessible via explicit configure
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switches. However, support for some distribution specific
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legacy configuration file formats has been dropped. We
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recommend distributions to simply adopt the configuration
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files everybody else uses now and convert the old
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configuration from packaging scripts. Most distributions
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already did that. If that's not possible or desirable,
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distributions are welcome to forward port the specific
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pieces of code locally from the git history.
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* When logging a message about a unit systemd will now always
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log the unit name in the message meta data.
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* localectl will now also discover system locale data that is
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not stored in locale archives, but directly unpacked.
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* logind will no longer unconditionally use framebuffer
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devices as seat masters, i.e. as devices that are required
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to be existing before a seat is considered preset. Instead,
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it will now look for all devices that are tagged as
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"seat-master" in udev. By default framebuffer devices will
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be marked as such, but depending on local systems other
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devices might be marked as well. This may be used to
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integrate graphics cards using closed source drivers (such
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as NVidia ones) more nicely into logind. Note however, that
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we recommend using the open source NVidia drivers instead,
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and no udev rules for the closed-source drivers will be
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shipped from us upstream.
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Contributions from: Adam Williamson, Alessandro Crismani, Auke
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Kok, Colin Walters, Daniel Wallace, Dave Reisner, David
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Herrmann, David Strauss, Dimitrios Apostolou, Eelco Dolstra,
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Eric Benoit, Giovanni Campagna, Hannes Reinecke, Henrik
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Grindal Bakken, Hermann Gausterer, Kay Sievers, Lennart
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Poettering, Lukas Nykryn, Mantas Mikulėnas, Marcel Holtmann,
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Martin Pitt, Matthew Monaco, Michael Biebl, Michael Terry,
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Michal Schmidt, Michal Sekletar, Michał Bartoszkiewicz, Oleg
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Samarin, Pekka Lundstrom, Philip Nilsson, Ramkumar
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Ramachandra, Richard Yao, Robert Millan, Sami Kerola, Shawn
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Landden, Thomas Hindoe Paaboel Andersen, Thomas Jarosch,
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Tollef Fog Heen, Tom Gundersen, Umut Tezduyar, Zbigniew
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Jędrzejewski-Szmek
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CHANGES WITH 196:
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* udev gained support for loading additional device properties
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