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Lennart Poettering 2013-01-08 02:27:22 +01:00
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NEWS
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systemd System and Service Manager
CHANGES WITH 197:
* Timer units now support calendar time events in addition to
monotonic time events. That means you can now trigger a unit
based on a calendar time specification such as "Thu,Fri
2013-*-1,5 11:12:13" which refers to 11:12:13 of the first
or fifth day of any month of the year 2013, given that it is
a thursday or friday. This brings timer event support
considerably closer to cron's capabilities. For details on
the supported calendar time specification language see
systemd.time(7).
* udev now supports a number of different naming policies for
network interfaces for predictable names, and a combination
of these policies is now the default. Please see this wiki
document for details:
http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames
* Auke Kok's bootchart implementation has been added to the
systemd tree. It's an optional component that can graph the
boot in quite some detail. It's one of the best bootchart
implementations around and minimal in its code and
dependencies.
* nss-myhostname has been integrated into the systemd source
tree. nss-myhostname guarantees that the local hostname
always stays resolvable via NSS. It has been a weak
requirement of systemd-hostnamed since a long time, and
since its code is actually trivial we decided to just
include it in systemd's source tree. It can be turned off
with a configure switch.
* The read-ahead logic is now capable of properly detecting
whether a btrfs file system is on SSD or rotating media, in
order to optimize the read-ahead scheme. Previously, it was
only capable of detecting this on traditional file systems
such as ext4.
* In udev, additional device properties are now read from the
IAB in addition to the OUI database. Also, Bluetooth company
identities are attached to the devices as well.
* In service files %U may be used as specifier that is
replaced by the configured user name of the service.
* nspawn may now be invoked without a controlling TTY. This
makes it suitable for invocation as its own service. This
may be used to set up a simple containerized server system
using only core OS tools.
* systemd and nspawn can now accept socket file descriptors
when they are started for socket activation. This enables
implementation of socket activated nspawn
containers. i.e. think about autospawning an entire OS image
when the first SSH or HTTP connection is received. We expect
that similar functionality will also be added to libvirt-lxc
eventually.
* journalctl will now suppress ANSI color codes when
presenting log data.
* systemctl will no longer show control group information for
a unit if a the control group is empty anyway.
* logind can now automatically suspend/hibernate/shutdown the
system on idle.
* /etc/machine-info and hostnamed now also expose the chassis
type of the system. This can be used to determine whether
the local system is a laptop, desktop, handset or
tablet. This information may either be configured by the
user/vendor or is automatically determined from ACPI and DMI
information if possible.
* A number of PolicyKit actions are now bound together with
"imply" rules. This should simplify creating UIs because
many actions will now authenticate similar ones as well.
* Unit files learnt a new condition ConditionACPower= which
may be used to conditionalize a unit depending on whether an
AC power source is connected or not, of whether the system
is running on battery power.
* systemctl gained a new "is-failed" verb that may be used in
shell scripts and suchlike to check whether a specific unit
is in the "failed" state.
* The EnvironmentFile= setting in unit files now supports file
globbing, and can hence be used to easily read a number of
environment files at once.
* systemd will no longer detect and recognize specific
distributions. All distribution-specific #ifdeffery has been
removed, systemd is now fully generic and
distribution-agnostic. Effectively, not too much is lost as
a lot of the code is still accessible via explicit configure
switches. However, support for some distribution specific
legacy configuration file formats has been dropped. We
recommend distributions to simply adopt the configuration
files everybody else uses now and convert the old
configuration from packaging scripts. Most distributions
already did that. If that's not possible or desirable,
distributions are welcome to forward port the specific
pieces of code locally from the git history.
* When logging a message about a unit systemd will now always
log the unit name in the message meta data.
* localectl will now also discover system locale data that is
not stored in locale archives, but directly unpacked.
* logind will no longer unconditionally use framebuffer
devices as seat masters, i.e. as devices that are required
to be existing before a seat is considered preset. Instead,
it will now look for all devices that are tagged as
"seat-master" in udev. By default framebuffer devices will
be marked as such, but depending on local systems other
devices might be marked as well. This may be used to
integrate graphics cards using closed source drivers (such
as NVidia ones) more nicely into logind. Note however, that
we recommend using the open source NVidia drivers instead,
and no udev rules for the closed-source drivers will be
shipped from us upstream.
Contributions from: Adam Williamson, Alessandro Crismani, Auke
Kok, Colin Walters, Daniel Wallace, Dave Reisner, David
Herrmann, David Strauss, Dimitrios Apostolou, Eelco Dolstra,
Eric Benoit, Giovanni Campagna, Hannes Reinecke, Henrik
Grindal Bakken, Hermann Gausterer, Kay Sievers, Lennart
Poettering, Lukas Nykryn, Mantas Mikulėnas, Marcel Holtmann,
Martin Pitt, Matthew Monaco, Michael Biebl, Michael Terry,
Michal Schmidt, Michal Sekletar, Michał Bartoszkiewicz, Oleg
Samarin, Pekka Lundstrom, Philip Nilsson, Ramkumar
Ramachandra, Richard Yao, Robert Millan, Sami Kerola, Shawn
Landden, Thomas Hindoe Paaboel Andersen, Thomas Jarosch,
Tollef Fog Heen, Tom Gundersen, Umut Tezduyar, Zbigniew
Jędrzejewski-Szmek
CHANGES WITH 196:
* udev gained support for loading additional device properties