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NEWS: add more stuff, and reorder things a bit
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Lennart Poettering
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@ -63,3 +63,4 @@ Arnd Bergmann <arnd@arndb.de>
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Tom Rini <trini@kernel.crashing.org>
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Paul Mundt <lethal@linux-sh.org>
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Atul Sabharwal <atul.sabharwal@intel.com>
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Daniel Machon <Danielmachon@live.dk>
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151
NEWS
151
NEWS
@ -2,10 +2,6 @@ systemd System and Service Manager
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CHANGES WITH 228:
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* When creating transient services via the bus API it is now
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possible to pass in a set of file descriptors to use as
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STDIN/STDOUT/STDERR for the invoked process.
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* A number of properties previously only settable in unit
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files are now also available as properties to set when
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creating transient units programmatically via the bus, as it
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@ -16,18 +12,57 @@ CHANGES WITH 228:
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ReadOnlyDirectories=, InaccessibleDirectories=,
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ProtectSystem=, ProtectHome=, RuntimeDirectory=.
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* Any reference to /etc/mtab has been dropped from
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systemd. The file has been obsolete since a while, but
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systemd refused to work on systems where it was incorrectly
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set up (it should be a symlink or non-existant). Please make
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sure to update to util-linux 2.27.1 or newer in conjunction
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with this systemd release, which also drops any reference to
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/etc/mtab. If you maintain a distribution make sure that no
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software you package still references it, as this is a
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likely source of bugs. There's also a glibc bug pending,
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asking for removal of any reference to the file:
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* When creating transient services via the bus API it is now
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possible to pass in a set of file descriptors to use as
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STDIN/STDOUT/STDERR for the invoked process.
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https://sourceware.org/bugzilla/show_bug.cgi?id=19108
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* Wherever systemd expects a calendar timestamp specification
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(like in journalctl's --since= and --until= switches) UTC
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timestamps are now supported. Timestamps suffixed with "UTC"
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are now considered to be in Universal Time Coordinated
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instead of the local timezone. Also, timestamps may now
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optionally be specified with a sub-second accuracy. Both of
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these additions also apply to recurring calendar event
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specification, such as OnCalendar= in timer units.
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* journalctl gained a new "--sync" switch that asks the
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journal daemon to write all so far unwritten log messages to
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disk and sync the files, before returning.
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* systemd-tmpfiles learned two new line types "q" and "Q" that
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operate like "v", but also set up a basic btrfs quota
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hierarchy when used on a btrfs file system with quota
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enabled.
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* systemd-detect-virt gained a new --chroot switch to detect
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whether execution takes place in a chroot() environment.
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* CPUAffinity= now takes CPU index ranges in addition to
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individual indexes.
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* The various memory-related resource limit settings (such as
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LimitAS=) now understand the usual K, M, G, ... suffixes to
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the base of 1024 (IEC). Similar, the time-related resource
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limit settings understand the usual min, h, day, ...
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suffixes now.
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* systemd-nspawn gained the new --network-veth-extra= switch
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to define additional and arbitrarily-named virtual Ethernet
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links between the host and the container.
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* A new service execution setting PassEnvironment= has been
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added that allows importing select environment variables
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from PID1's environment block into the environment block of
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the service.
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* systemd will now bump the net.unix.max_dgram_qlen to 512 by
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default now (the kernel default is 16). This is beneficial
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for avoiding blocking on AF_UNIX/SOCK_DGRAM sockets since it
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allows substantially larger numbers of queued
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datagrams. This should increase the capability of systemd to
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parallelize boot-up, as logging and sd_notify() are unlikely
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to stall execution anymore. If you need to change the value
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from the new defaults, use the usual sysctl.d/ snippets.
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* The compression framing format used by the journal or
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coredump processing has changed to be in line with what the
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@ -40,52 +75,58 @@ CHANGES WITH 228:
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it a good default choice for the compression logic in the
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journal and in coredump handling.
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* Wherever systemd expects a calendar timestamp specification
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(like in journalctl's --since= and --until= switches) UTC
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timestamps are now supported. Timestamps suffixed with "UTC"
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are now considered to be in Universal Time Coordinated
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instead of the local timezone. Also, timestamps may now
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optionally be specified with a sub-second accuracy. Both of
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these additions also apply to recurring calendar event
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specification, such as OnCalendar= in timer units.
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* Any reference to /etc/mtab has been dropped from
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systemd. The file has been obsolete since a while, but
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systemd refused to work on systems where it was incorrectly
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set up (it should be a symlink or non-existant). Please make
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sure to update to util-linux 2.27.1 or newer in conjunction
|
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with this systemd release, which also drops any reference to
|
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/etc/mtab. If you maintain a distribution make sure that no
|
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software you package still references it, as this is a
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likely source of bugs. There's also a glibc bug pending,
|
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asking for removal of any reference to this obsolete file:
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* systemd-tmpfiles learned two new line types "q" and "Q" that
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operate like "v", but also set up a basic btrfs quota
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hierarchy when used on a btrfs file system with quota
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enabled.
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* systemd-detect-virt gained a new --chroot switch to detect
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whether execution takes place in a chroot() environment.
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* CPUAffinity= now takes CPU index ranges in addition to just
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individual indexes.
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* systemd will now bump the net.unix.max_dgram_qlen to 512 by
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default now (kernel default is 16). This is beneficial for
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avoiding blocking on AF_UNIX/SOCK_DGRAM sockets since it
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allows substantially larger numbers of queued
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datagrams. This should increase the capability of systemd to
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parallelize boot-up, as logging and sd_notify() are unlikely
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to stall execution anymore. If you need to change the value
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from the new defaults, use the usual sysctl.d/ snippets.
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* The various memory-related resource limit settings (such as
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LimitAS=) now understand the usual K, M, G, ... suffixes to
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the base of 1024 (IEC). Similar, the time-related settings
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understand the usual min, h, day, ... suffixes now.
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* journalctl gained a new "--sync" switch that asks the
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journal daemon to write all so far unwritten log messages to
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disk and sync the files, before returning.
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https://sourceware.org/bugzilla/show_bug.cgi?id=19108
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* Support for the ".snapshot" unit type has been removed. This
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feature turned out to be little useful and little used, and
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has now been removed from the core and from systemctl.
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* A new service execution setting PassEnvironment= has been
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added that allows importing select environment variables
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from PID1's environment block into the environment block of
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the service.
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* In unit files the behaviour of %u, %U, %h, %s has
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changed. These specifiers will now unconditionally resolve
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to the various user database fields of the user that the
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systemd instance is running as, instead of the user
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configured in the specific unit via User=. Note that this
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effectively doesn't change much, as resolving of these
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specifiers was already turned off in the --system instance
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of systemd, as we cannot do NSS lookups from PID 1. In the
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--user instance of systemd these specifiers where correctly
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resolved, but hardly made any sense, since the user instance
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lacks privileges to do user switches anyway, and User= is
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hence useless. Morever, even in the --user instance of
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systemd behaviour was awkward as it would only take settings
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from User= assignment placed before the specifier into
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account. In order to unify and simplify the logic around
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this the specifiers will now always resolve to the
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credentials of the user invoking the manager (which in case
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of PID 1 is the root user).
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Contributions from: Andrew Jones, Beniamino Galvani, Boyuan
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Yang, Daniel Machon, Daniel Mack, David Herrmann, David
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Reynolds, David Strauss, Dongsu Park, Evgeny Vereshchagin,
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Filipe Brandenburger, Franck Bui, Hristo Venev, Iago López
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Galeiras, Jan Engelhardt, Jan Janssen, Jan Synacek, Jesus
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Ornelas Aguayo, Karel Zak, kayrus, Kay Sievers, Lennart
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Poettering, Mantas Mikulėnas, Marcel Holtmann, Marcin Bachry,
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Marcos Alano, Marcos Mello, Mark Theunissen, Martin Pitt,
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Michael Marineau, Michael Olbrich, Michal Schmidt, Michal
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Sekletar, Mirco Tischler, Nick Owens, Nicolas Cornu, Patrik
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Flykt, Peter Hutterer, reverendhomer, Ronny Chevalier,
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Sangjung Woo, Seong-ho Cho, Shawn Landden, Susant Sahani,
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Thomas Haller, Thomas Hindoe Paaboel Andersen, Tom Gundersen,
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Torstein Husebø, Vito Caputo, Zbigniew Jędrzejewski-Szmek
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-- Berlin, 2015-11-XX
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CHANGES WITH 227:
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