systemd System and Service Manager
+CHANGES WITH 216:
+
+ * timedated no longer reads NTP implementation unit names from
+ /usr/lib/systemd/ntp-units.d/*.list. Alternative NTP
+ implementations should add a
+
+ Conflicts=systemd-timesyncd.service
+
+ to their unit files to take over and replace systemd's NTP
+ default functionality.
+
+ * systemd-sysusers gained a new line type "r" for configuring
+ which UID/GID ranges to allocate system users/groups
+ from. Lines of type "u" may now add an additional column
+ that specifies the home directory for the system user to be
+ created. Also, systemd-sysusers may now optionally read user
+ information from STDIN instead of a file. This is useful for
+ invoking it from RPM preinst scriptlets that need to create
+ users before the first RPM file is installed since these
+ files might need to be owned by them. A new
+ %sysusers_create_inline RPM macro has been introduced to do
+ just that. systemd-sysusers now updates the shadow files as
+ well as the user/group databases, which should enhance
+ compatibility with certain tools like grpck.
+
+ * A number of bus APIs of PID 1 now optionally consult
+ PolicyKit to permit access for otherwise unprivileged
+ clients under certain conditions. Note that this currently
+ doesn't support interactive authentication yet, but this is
+ expected to be added eventually, too.
+
+ * /etc/machine-info now has new fields for configuring the
+ deployment environment of the machine, as well as the
+ location of the machine. hostnamectl has been updated with
+ new command to update these fields.
+
+ * systemd-timesyncd has been updated to automatically acquire
+ NTP server information from systemd-networkd, which might
+ have been discovered via DHCP.
+
+ * systemd-resolved now includes a caching DNS stub resolver
+ and a complete LLMNR name resolution implementation. A new
+ NSS module "nss-resolve" has been added which can be used
+ instead of glibc's own "nss-dns" to resolve hostnames via
+ systemd-resolved. Hostnames, addresses and arbitrary RRs may
+ be resolved via systemd-resolved D-Bus APIs. In contrast to
+ the glibc internal resolver systemd-resolved is aware of
+ multi-homed system, and keeps DNS server and caches separate
+ and per-interface. Queries are sent simultaneously on all
+ interfaces that have DNS servers configured, in order to
+ properly handle VPNs and local LANs which might resolve
+ separate sets of domain names. systemd-resolved may acquire
+ DNS server information from systemd-networkd automatically,
+ which in turn might have discovered them via DHCP. A tool
+ "systemd-resolve-host" has been added that may be used to
+ query the DNS logic in resolved. systemd-resolved implements
+ IDNA and automatically uses IDNA or UTF-8 encoding depending
+ on whether classic DNS or LLMNR is used as transport. In the
+ next releases we intend to add a DNSSEC and mDNS/DNS-SD
+ implementation to systemd-resolved.
+
+ * A new NSS module nss-mymachines has been added, that
+ automatically resolves the names of all local registered
+ containers to their respective IP addresses.
+
+ * A new client tool "networkctl" for systemd-networkd has been
+ added. It currently is entirely passive and will query
+ networking configuration from udev, rtnetlink and networkd,
+ and present it to the user in a very friendly
+ way. Eventually, we hope to extend it to become a full
+ control utility for networkd.
+
+ * .socket units gained a new DeferAcceptSec= setting that
+ controls the kernels' TCP_DEFER_ACCEPT sockopt for
+ TCP. Similar, support for controlling TCP keep-alive
+ settings has been added (KeepAliveTimeSec=,
+ KeepAliveIntervalSec=, KeepAliveProbes=). Also, support for
+ turning off Nagle's algorithm on TCP has been added
+ (NoDelay=).
+
+ * logind learned a new session type "web", for use in projects
+ like Cockpit which register web clients as PAM sessions.
+
+ * timer units with at least one OnCalendar= setting will now
+ be started only after timer-sync.target has been
+ reached. This way they will not elapse before the system
+ clock has been corrected by a local NTP client or
+ similar. This is particular useful on RTC-less embedded
+ machines, that come up with an invalid system clock.
+
+ * systemd-nspawn's --network-veth= switch should now result in
+ stable MAC addresses for both the outer and the inner side
+ of the link.
+
+ * systemd-nspawn gained a new --volatile= switch for running
+ container instances with /etc or /var unpopulated.
+
+ * The kdbus client code has been updated to use the new Linux
+ 3.17 memfd subsystem instead of the old kdbus-specific one.
+
+ * systemd-networkd's DHCP client and server now support
+ FORCERENEW. There are also new configuration options to
+ configure the vendor client identifier and broadcast mode
+ for DHCP.
+
+ * systemd will no longer inform the kernel about the current
+ timezone, as this is necessarily incorrect and racy as the
+ kernel has no understanding of DST and similar
+ concepts. This hence means FAT timestamps will be always
+ considered UTC, similar to what Android is already
+ doing. Also, when the RTC is configured to the local time
+ (rather than UTC) systemd will never synchronize back to it,
+ as this might confuse Windows at a later boot.
+
+ * systemd-analyze gained a new command "verify" for offline
+ validation of unit files.
+
+ * systemd-networkd gained support for a couple of additional
+ settings for bonding networking setups. Also, the metric for
+ statically configured routes may now be configured. For
+ network interfaces where this is appropriate the peer IP
+ address may now be configured.
+
+ * systemd-networkd's DHCP client will no longer request
+ broadcasting by default, as this tripped up some networks.
+ For hardware where broadcast is required the feature should
+ be switched back on using RequestBroadcast=yes.
+
+ * systemd-networkd will now set up IPv4LL addresses (when
+ enabled) even if DHCP is configured successfully.
+
+ * udev will now default to respect network device names given
+ by the kernel when the kernel indicates that these are
+ predictable. This behavior can be tweaked by changing
+ NamePolicy= in the relevant .link file.
+
+ * A new library systemd-terminal has been added that
+ implements full TTY stream parsing and rendering. This
+ library is supposed to be used later on for implementing a
+ full userspace VT subsystem, replacing the current kernel
+ implementation.
+
+ * A new tool systemd-journal-upload has been added to push
+ journal data to a remote system running
+ systemd-journal-remote.
+
+ * journald will no longer forward all local data to another
+ running syslog daemon. This change has been made because
+ rsyslog (which appears to be the most commonly used syslog
+ implementation these days) no longer makes use of this, and
+ instead pulls the data out of the journal on its own. Since
+ forwarding the messages to a non-existent syslog server is
+ more expensive than we assumed we have now turned this
+ off. If you run a syslog server that is not a recent rsyslog
+ version, you have to turn this option on again
+ (ForwardToSyslog= in journald.conf).
+
+ * journald now optionally supports the LZ4 compressor for
+ larger journal fields. This compressor should perform much
+ better than XZ which was the previous default.
+
+ * machinectl now shows the IP addresses of local containers,
+ if it knows them, plus the interface name of the container.
+
+ * A new tool "systemd-escape" has been added that makes it
+ easy to escape strings to build unit names and similar.
+
+ * sd_notify() messages may now include a new ERRNO= field
+ which is parsed and collected by systemd and shown among the
+ "systemctl status" output for a service.
+
+ * A new component "systemd-firstboot" has been added that
+ queries the most basic systemd information (timezone,
+ hostname, root password) interactively on first
+ boot. Alternatively it may also be used to provision these
+ things offline on OS images installed into directories.
+
+ * The default sysctl.d/ snippets will now set
+
+ net.ipv4.conf.default.promote_secondaries=1
+
+ This has the benefit of no flushing secondary IP addresses
+ when primary addresses are removed.
+
+ Contributions from: Ansgar Burchardt, Bastien Nocera, Colin
+ Walters, Dan Dedrick, Daniel Buch, Daniel Korostil, Daniel
+ Mack, Dan Williams, Dave Reisner, David Herrmann, Denis
+ Kenzior, Eelco Dolstra, Eric Cook, Hannes Reinecke, Harald
+ Hoyer, Hong Shick Pak, Hui Wang, Jean-André Santoni, Jóhann
+ B. Guðmundsson, Jon Severinsson, Karel Zak, Kay Sievers, Kevin
+ Wells, Lennart Poettering, Lukas Nykryn, Mantas Mikulėnas,
+ Marc-Antoine Perennou, Martin Pitt, Michael Biebl, Michael
+ Marineau, Michael Olbrich, Michal Schmidt, Michal Sekletar,
+ Miguel Angel Ajo, Mike Gilbert, Olivier Brunel, Robert
+ Schiele, Ronny Chevalier, Simon McVittie, Sjoerd Simons, Stef
+ Walter, Steven Noonan, Susant Sahani, Tanu Kaskinen, Thomas
+ Blume, Thomas Hindoe Paaboel Andersen, Timofey Titovets,
+ Tobias Geerinckx-Rice, Tomasz Torcz, Tom Gundersen, Umut
+ Tezduyar Lindskog, Zbigniew Jędrzejewski-Szmek
+
+ -- Berlin, 2014-08-19
+
+CHANGES WITH 215:
+
+ * A new tool systemd-sysusers has been added. This tool
+ creates system users and groups in /etc/passwd and
+ /etc/group, based on static declarative system user/group
+ definitions in /usr/lib/sysusers.d/. This is useful to
+ enable factory resets and volatile systems that boot up with
+ an empty /etc directory, and thus need system users and
+ groups created during early boot. systemd now also ships
+ with two default sysusers.d/ files for the most basic
+ users and groups systemd and the core operating system
+ require.
+
+ * A new tmpfiles snippet has been added that rebuilds the
+ essential files in /etc on boot, should they be missing.
+
+ * A directive for ensuring automatic clean-up of
+ /var/cache/man/ has been removed from the default
+ configuration. This line should now be shipped by the man
+ implementation. The necessary change has been made to the
+ man-db implementation. Note that you need to update your man
+ implementation to one that ships this line, otherwise no
+ automatic clean-up of /var/cache/man will take place.
+
+ * A new condition ConditionNeedsUpdate= has been added that
+ may conditionalize services to only run when /etc or /var
+ are "older" than the vendor operating system resources in
+ /usr. This is useful for reconstructing or updating /etc
+ after an offline update of /usr or a factory reset, on the
+ next reboot. Services that want to run once after such an
+ update or reset should use this condition and order
+ themselves before the new systemd-update-done.service, which
+ will mark the two directories as fully updated. A number of
+ service files have been added making use of this, to rebuild
+ the udev hardware database, the journald message catalog and
+ dynamic loader cache (ldconfig). The systemd-sysusers tool
+ described above also makes use of this now. With this in
+ place it is now possible to start up a minimal operating
+ system with /etc empty cleanly. For more information on the
+ concepts involved see this recent blog story:
+
+ http://0pointer.de/blog/projects/stateless.html
+
+ * A new system group "input" has been introduced, and all
+ input device nodes get this group assigned. This is useful
+ for system-level software to get access to input devices. It
+ complements what is already done for "audio" and "video".
+
+ * systemd-networkd learnt minimal DHCPv4 server support in
+ addition to the existing DHCPv4 client support. It also
+ learnt DHCPv6 client and IPv6 Router Solicitation client
+ support. The DHCPv4 client gained support for static routes
+ passed in from the server. Note that the [DHCPv4] section
+ known in older systemd-networkd versions has been renamed to
+ [DHCP] and is now also used by the DHCPv6 client. Existing
+ .network files using settings of this section should be
+ updated, though compatibility is maintained. Optionally, the
+ client hostname may now be sent to the DHCP server.
+
+ * networkd gained support for vxlan virtual networks as well
+ as tun/tap and dummy devices.
+
+ * networkd gained support for automatic allocation of address
+ ranges for interfaces from a system-wide pool of
+ addresses. This is useful for dynamically managing a large
+ number of interfaces with a single network configuration
+ file. In particular this is useful to easily assign
+ appropriate IP addresses to the veth links of a large number
+ of nspawn instances.
+
+ * RPM macros for processing sysusers, sysctl and binfmt
+ drop-in snippets at package installation time have been
+ added.
+
+ * The /etc/os-release file should now be placed in
+ /usr/lib/os-release. The old location is automatically
+ created as symlink. /usr/lib is the more appropriate
+ location of this file, since it shall actually describe the
+ vendor operating system shipped in /usr, and not the
+ configuration stored in /etc.
+
+ * .mount units gained a new boolean SloppyOptions= setting
+ that maps to mount(8)'s -s option which enables permissive
+ parsing of unknown mount options.
+
+ * tmpfiles learnt a new "L+" directive which creates a symlink
+ but (unlike "L") deletes a pre-existing file first, should
+ it already exist and not already be the correct
+ symlink. Similar, "b+", "c+" and "p+" directives have been
+ added as well, which create block and character devices, as
+ well as fifos in the filesystem, possibly removing any
+ pre-existing files of different types.
+
+ * For tmpfiles' "L", "L+", "C" and "C+" directives the final
+ 'argument' field (which so far specified the source to
+ symlink/copy the files from) is now optional. If omitted the
+ same file os copied from /usr/share/factory/ suffixed by the
+ full destination path. This is useful for populating /etc
+ with essential files, by copying them from vendor defaults
+ shipped in /usr/share/factory/etc.
+
+ * A new command "systemctl preset-all" has been added that
+ applies the service preset settings to all installed unit
+ files. A new switch --preset-mode= has been added that
+ controls whether only enable or only disable operations
+ shall be executed.
+
+ * A new command "systemctl is-system-running" has been added
+ that allows checking the overall state of the system, for
+ example whether it is fully up and running.
+
+ * When the system boots up with an empty /etc, the equivalent
+ to "systemctl preset-all" is executed during early boot, to
+ make sure all default services are enabled after a factory
+ reset.
+
+ * systemd now contains a minimal preset file that enables the
+ most basic services systemd ships by default.
+
+ * Unit files' [Install] section gained a new DefaultInstance=
+ field for defining the default instance to create if a
+ template unit is enabled with no instance specified.
+
+ * A new passive target cryptsetup-pre.target has been added
+ that may be used by services that need to make they run and
+ finish before the first LUKS cryptographic device is set up.
+
+ * The /dev/loop-control and /dev/btrfs-control device nodes
+ are now owned by the "disk" group by default, opening up
+ access to this group.
+
+ * systemd-coredump will now automatically generate a
+ stack trace of all core dumps taking place on the system,
+ based on elfutils' libdw library. This stack trace is logged
+ to the journal.
+
+ * systemd-coredump may now optionally store coredumps directly
+ on disk (in /var/lib/systemd/coredump, possibly compressed),
+ instead of storing them unconditionally in the journal. This
+ mode is the new default. A new configuration file
+ /etc/systemd/coredump.conf has been added to configure this
+ and other parameters of systemd-coredump.
+
+ * coredumpctl gained a new "info" verb to show details about a
+ specific coredump. A new switch "-1" has also been added
+ that makes sure to only show information about the most
+ recent entry instead of all entries. Also, as the tool is
+ generally useful now the "systemd-" prefix of the binary
+ name has been removed. Distributions that want to maintain
+ compatibility with the old name should add a symlink from
+ the old name to the new name.
+
+ * journald's SplitMode= now defaults to "uid". This makes sure
+ that unprivileged users can access their own coredumps with
+ coredumpctl without restrictions.
+
+ * New kernel command line options "systemd.wants=" (for
+ pulling an additional unit during boot), "systemd.mask="
+ (for masking a specific unit for the boot), and
+ "systemd.debug-shell" (for enabling the debug shell on tty9)
+ have been added. This is implemented in the new generator
+ "systemd-debug-generator".
+
+ * systemd-nspawn will now by default filter a couple of
+ syscalls for containers, among them those required for
+ kernel module loading, direct x86 IO port access, swap
+ management, and kexec. Most importantly though
+ open_by_handle_at() is now prohibited for containers,
+ closing a hole similar to a recently discussed vulnerability
+ in docker regarding access to files on file hierarchies the
+ container should normally not have access to. Note that for
+ nspawn we generally make no security claims anyway (and
+ this is explicitly documented in the man page), so this is
+ just a fix for one of the most obvious problems.
+
+ * A new man page file-hierarchy(7) has been added that
+ contains a minimized, modernized version of the file system
+ layout systemd expects, similar in style to the FHS
+ specification or hier(5). A new tool systemd-path(1) has
+ been added to query many of these paths for the local
+ machine and user.
+
+ * Automatic time-based clean-up of $XDG_RUNTIME_DIR is no
+ longer done. Since the directory now has a per-user size
+ limit, and is cleaned on logout this appears unnecessary,
+ in particular since this now brings the lifecycle of this
+ directory closer in line with how IPC objects are handled.
+
+ * systemd.pc now exports a number of additional directories,
+ including $libdir (which is useful to identify the library
+ path for the primary architecture of the system), and a
+ couple of drop-in directories.
+
+ * udev's predictable network interface names now use the dev_port
+ sysfs attribute, introduced in linux 3.15 instead of dev_id to
+ distinguish between ports of the same PCI function. dev_id should
+ only be used for ports using the same HW address, hence the need
+ for dev_port.
+
+ * machined has been updated to export the OS version of a
+ container (read from /etc/os-release and
+ /usr/lib/os-release) on the bus. This is now shown in
+ "machinectl status" for a machine.
+
+ * A new service setting RestartForceExitStatus= has been
+ added. If configured to a set of exit signals or process
+ return values, the service will be restarted when the main
+ daemon process exits with any of them, regardless of the
+ Restart= setting.
+
+ * systemctl's -H switch for connecting to remote systemd
+ machines has been extended so that it may be used to
+ directly connect to a specific container on the
+ host. "systemctl -H root@foobar:waldi" will now connect as
+ user "root" to host "foobar", and then proceed directly to
+ the container named "waldi". Note that currently you have to
+ authenticate as user "root" for this to work, as entering
+ containers is a privileged operation.
+
+ Contributions from: Andreas Henriksson, Benjamin Steinwender,
+ Carl Schaefer, Christian Hesse, Colin Ian King, Cristian
+ Rodríguez, Daniel Mack, Dave Reisner, David Herrmann, Eugene
+ Yakubovich, Filipe Brandenburger, Frederic Crozat, Hristo
+ Venev, Jan Engelhardt, Jonathan Boulle, Kay Sievers, Lennart
+ Poettering, Luke Shumaker, Mantas Mikulėnas, Marc-Antoine
+ Perennou, Marcel Holtmann, Michael Marineau, Michael Olbrich,
+ Michał Bartoszkiewicz, Michal Sekletar, Patrik Flykt, Ronan Le
+ Martret, Ronny Chevalier, Ruediger Oertel, Steven Noonan,
+ Susant Sahani, Thadeu Lima de Souza Cascardo, Thomas Hindoe
+ Paaboel Andersen, Tom Gundersen, Tom Hirst, Umut Tezduyar
+ Lindskog, Uoti Urpala, Zbigniew Jędrzejewski-Szmek
+
+ -- Berlin, 2014-07-03
+
+CHANGES WITH 214:
+
+ * As an experimental feature, udev now tries to lock the
+ disk device node (flock(LOCK_SH|LOCK_NB)) while it
+ executes events for the disk or any of its partitions.
+ Applications like partitioning programs can lock the
+ disk device node (flock(LOCK_EX)) and claim temporary
+ device ownership that way; udev will entirely skip all event
+ handling for this disk and its partitions. If the disk
+ was opened for writing, the close will trigger a partition
+ table rescan in udev's "watch" facility, and if needed
+ synthesize "change" events for the disk and all its partitions.
+ This is now unconditionally enabled, and if it turns out to
+ cause major problems, we might turn it on only for specific
+ devices, or might need to disable it entirely. Device Mapper
+ devices are excluded from this logic.
+
+ * We temporarily dropped the "-l" switch for fsck invocations,
+ since they collide with the flock() logic above. util-linux
+ upstream has been changed already to avoid this conflict,
+ and we will readd "-l" as soon as util-linux with this
+ change has been released.
+
+ * The dependency on libattr has been removed. Since a long
+ time, the extended attribute calls have moved to glibc, and
+ libattr is thus unnecessary.
+
+ * Virtualization detection works without priviliges now. This
+ means the systemd-detect-virt binary no longer requires
+ CAP_SYS_PTRACE file capabilities, and our daemons can run
+ with fewer privileges.
+
+ * systemd-networkd now runs under its own "systemd-network"
+ user. It retains the CAP_NET_ADMIN, CAP_NET_BIND_SERVICE,
+ CAP_NET_BROADCAST, CAP_NET_RAW capabilities though, but
+ loses the ability to write to files owned by root this way.
+
+ * Similar, systemd-resolved now runs under its own
+ "systemd-resolve" user with no capabilities remaining.
+
+ * Similar, systemd-bus-proxyd now runs under its own
+ "systemd-bus-proxy" user with only CAP_IPC_OWNER remaining.
+
+ * systemd-networkd gained support for setting up "veth"
+ virtual ethernet devices for container connectivity, as well
+ as GRE and VTI tunnels.
+
+ * systemd-networkd will no longer automatically attempt to
+ manually load kernel modules necessary for certain tunnel
+ transports. Instead, it is assumed the kernel loads them
+ automatically when required. This only works correctly on
+ very new kernels. On older kernels, please consider adding
+ the kernel modules to /etc/modules-load.d/ as a work-around.
+
+ * The resolv.conf file systemd-resolved generates has been
+ moved to /run/systemd/resolve/. If you have a symlink from
+ /etc/resolv.conf, it might be necessary to correct it.
+
+ * Two new service settings, ProtectHome= and ProtectSystem=,
+ have been added. When enabled, they will make the user data
+ (such as /home) inaccessible or read-only and the system
+ (such as /usr) read-only, for specific services. This allows
+ very light-weight per-service sandboxing to avoid
+ modifications of user data or system files from
+ services. These two new switches have been enabled for all
+ of systemd's long-running services, where appropriate.
+
+ * Socket units gained new SocketUser= and SocketGroup=
+ settings to set the owner user and group of AF_UNIX sockets
+ and FIFOs in the file system.
+
+ * Socket units gained a new RemoveOnStop= setting. If enabled,
+ all FIFOS and sockets in the file system will be removed
+ when the specific socket unit is stopped.
+
+ * Socket units gained a new Symlinks= setting. It takes a list
+ of symlinks to create to file system sockets or FIFOs
+ created by the specific Unix sockets. This is useful to
+ manage symlinks to socket nodes with the same life-cycle as
+ the socket itself.
+
+ * The /dev/log socket and /dev/initctl FIFO have been moved to
+ /run, and have been replaced by symlinks. This allows
+ connecting to these facilities even if PrivateDevices=yes is
+ used for a service (which makes /dev/log itself unavailable,
+ but /run is left). This also has the benefit of ensuring
+ that /dev only contains device nodes, directories and
+ symlinks, and nothing else.
+
+ * sd-daemon gained two new calls sd_pid_notify() and
+ sd_pid_notifyf(). They are similar to sd_notify() and
+ sd_notifyf(), but allow overriding of the source PID of
+ notification messages if permissions permit this. This is
+ useful to send notify messages on behalf of a different
+ process (for example, the parent process). The
+ systemd-notify tool has been updated to make use of this
+ when sending messages (so that notification messages now
+ originate from the shell script invoking systemd-notify and
+ not the systemd-notify process itself. This should minimize
+ a race where systemd fails to associate notification
+ messages to services when the originating process already
+ vanished.
+
+ * A new "on-abnormal" setting for Restart= has been added. If
+ set, it will result in automatic restarts on all "abnormal"
+ reasons for a process to exit, which includes unclean
+ signals, core dumps, timeouts and watchdog timeouts, but
+ does not include clean and unclean exit codes or clean
+ signals. Restart=on-abnormal is an alternative for
+ Restart=on-failure for services that shall be able to
+ terminate and avoid restarts on certain errors, by
+ indicating so with an unclean exit code. Restart=on-failure
+ or Restart=on-abnormal is now the recommended setting for
+ all long-running services.
+
+ * If the InaccessibleDirectories= service setting points to a
+ mount point (or if there are any submounts contained within
+ it), it is now attempted to completely unmount it, to make
+ the file systems truly unavailable for the respective
+ service.
+
+ * The ReadOnlyDirectories= service setting and
+ systemd-nspawn's --read-only parameter are now recursively
+ applied to all submounts, too.
+
+ * Mount units may now be created transiently via the bus APIs.
+
+ * The support for SysV and LSB init scripts has been removed
+ from the systemd daemon itself. Instead, it is now
+ implemented as a generator that creates native systemd units
+ from these scripts when needed. This enables us to remove a
+ substantial amount of legacy code from PID 1, following the
+ fact that many distributions only ship a very small number
+ of LSB/SysV init scripts nowadays.
+
+ * Priviliged Xen (dom0) domains are not considered
+ virtualization anymore by the virtualization detection
+ logic. After all, they generally have unrestricted access to
+ the hardware and usually are used to manage the unprivileged
+ (domU) domains.
+
+ * systemd-tmpfiles gained a new "C" line type, for copying
+ files or entire directories.
+
+ * systemd-tmpfiles "m" lines are now fully equivalent to "z"
+ lines. So far, they have been non-globbing versions of the
+ latter, and have thus been redundant. In future, it is
+ recommended to only use "z". "m" has hence been removed
+ from the documentation, even though it stays supported.
+
+ * A tmpfiles snippet to recreate the most basic structure in
+ /var has been added. This is enough to create the /var/run →
+ /run symlink and create a couple of structural
+ directories. This allows systems to boot up with an empty or
+ volatile /var. Of course, while with this change, the core OS
+ now is capable with dealing with a volatile /var, not all
+ user services are ready for it. However, we hope that sooner
+ or later, many service daemons will be changed upstream so
+ that they are able to automatically create their necessary
+ directories in /var at boot, should they be missing. This is
+ the first step to allow state-less systems that only require
+ the vendor image for /usr to boot.
+
+ * systemd-nspawn has gained a new --tmpfs= switch to mount an
+ empty tmpfs instance to a specific directory. This is
+ particularly useful for making use of the automatic
+ reconstruction of /var (see above), by passing --tmpfs=/var.
+
+ * Access modes specified in tmpfiles snippets may now be
+ prefixed with "~", which indicates that they shall be masked
+ by whether the existing file or directory is currently
+ writable, readable or executable at all. Also, if specified,
+ the sgid/suid/sticky bits will be masked for all
+ non-directories.
+
+ * A new passive target unit "network-pre.target" has been
+ added which is useful for services that shall run before any
+ network is configured, for example firewall scripts.
+
+ * The "floppy" group that previously owned the /dev/fd*
+ devices is no longer used. The "disk" group is now used
+ instead. Distributions should probably deprecate usage of
+ this group.
+
+ Contributions from: Camilo Aguilar, Christian Hesse, Colin Ian
+ King, Cristian Rodríguez, Daniel Buch, Dave Reisner, David
+ Strauss, Denis Tikhomirov, John, Jonathan Liu, Kay Sievers,
+ Lennart Poettering, Mantas Mikulėnas, Mark Eichin, Ronny
+ Chevalier, Susant Sahani, Thomas Blume, Thomas Hindoe Paaboel
+ Andersen, Tom Gundersen, Umut Tezduyar Lindskog, Zbigniew
+ Jędrzejewski-Szmek
+
+ -- Berlin, 2014-06-11
+
+CHANGES WITH 213:
+
+ * A new "systemd-timesyncd" daemon has been added for
+ synchronizing the system clock across the network. It
+ implements an SNTP client. In contrast to NTP
+ implementations such as chrony or the NTP reference server,
+ this only implements a client side, and does not bother with
+ the full NTP complexity, focusing only on querying time from
+ one remote server and synchronizing the local clock to
+ it. Unless you intend to serve NTP to networked clients or
+ want to connect to local hardware clocks, this simple NTP
+ client should be more than appropriate for most
+ installations. The daemon runs with minimal privileges, and
+ has been hooked up with networkd to only operate when
+ network connectivity is available. The daemon saves the
+ current clock to disk every time a new NTP sync has been
+ acquired, and uses this to possibly correct the system clock
+ early at bootup, in order to accommodate for systems that
+ lack an RTC such as the Raspberry Pi and embedded devices,
+ and to make sure that time monotonically progresses on these
+ systems, even if it is not always correct. To make use of
+ this daemon, a new system user and group "systemd-timesync"
+ needs to be created on installation of systemd.
+
+ * The queue "seqnum" interface of libudev has been disabled, as
+ it was generally incompatible with device namespacing as
+ sequence numbers of devices go "missing" if the devices are
+ part of a different namespace.
+
+ * "systemctl list-timers" and "systemctl list-sockets" gained
+ a --recursive switch for showing units of these types also
+ for all local containers, similar in style to the already
+ supported --recursive switch for "systemctl list-units".
+
+ * A new RebootArgument= setting has been added for service
+ units, which may be used to specify a kernel reboot argument
+ to use when triggering reboots with StartLimitAction=.
+
+ * A new FailureAction= setting has been added for service
+ units which may be used to specify an operation to trigger
+ when a service fails. This works similarly to
+ StartLimitAction=, but unlike it, controls what is done
+ immediately rather than only after several attempts to
+ restart the service in question.
+
+ * hostnamed got updated to also expose the kernel name,
+ release, and version on the bus. This is useful for
+ executing commands like hostnamectl with the -H switch.
+ systemd-analyze makes use of this to properly display
+ details when running non-locally.
+
+ * The bootchart tool can now show cgroup information in the
+ graphs it generates.
+
+ * The CFS CPU quota cgroup attribute is now exposed for
+ services. The new CPUQuota= switch has been added for this
+ which takes a percentage value. Setting this will have the
+ result that a service may never get more CPU time than the
+ specified percentage, even if the machine is otherwise idle.
+
+ * systemd-networkd learned IPIP and SIT tunnel support.
+
+ * LSB init scripts exposing a dependency on $network will now
+ get a dependency on network-online.target rather than simply
+ network.target. This should bring LSB handling closer to
+ what it was on SysV systems.
+
+ * A new fsck.repair= kernel option has been added to control
+ how fsck shall deal with unclean file systems at boot.
+
+ * The (.ini) configuration file parser will now silently
+ ignore sections whose name begins with "X-". This may be
+ used to maintain application-specific extension sections in unit
+ files.
+
+ * machined gained a new API to query the IP addresses of
+ registered containers. "machinectl status" has been updated
+ to show these addresses in its output.
+
+ * A new call sd_uid_get_display() has been added to the
+ sd-login APIs for querying the "primary" session of a
+ user. The "primary" session of the user is elected from the
+ user's sessions and generally a graphical session is
+ preferred over a text one.
+
+ * A minimal systemd-resolved daemon has been added. It
+ currently simply acts as a companion to systemd-networkd and
+ manages resolv.conf based on per-interface DNS
+ configuration, possibly supplied via DHCP. In the long run
+ we hope to extend this into a local DNSSEC enabled DNS and
+ mDNS cache.
+
+ * The systemd-networkd-wait-online tool is now enabled by
+ default. It will delay network-online.target until a network
+ connection has been configured. The tool primarily integrates
+ with networkd, but will also make a best effort to make sense
+ of network configuration performed in some other way.
+
+ * Two new service options StartupCPUShares= and
+ StartupBlockIOWeight= have been added that work similarly to
+ CPUShares= and BlockIOWeight= however only apply during
+ system startup. This is useful to prioritize certain services
+ differently during bootup than during normal runtime.
+
+ * hostnamed has been changed to prefer the statically
+ configured hostname in /etc/hostname (unless set to
+ 'localhost' or empty) over any dynamic one supplied by
+ dhcp. With this change, the rules for picking the hostname
+ match more closely the rules of other configuration settings
+ where the local administrator's configuration in /etc always
+ overrides any other settings.
+
+ Contributions fron: Ali H. Caliskan, Alison Chaiken, Bas van
+ den Berg, Brandon Philips, Cristian Rodríguez, Daniel Buch,
+ Dan Kilman, Dave Reisner, David Härdeman, David Herrmann,
+ David Strauss, Dimitris Spingos, Djalal Harouni, Eelco
+ Dolstra, Evan Nemerson, Florian Albrechtskirchinger, Greg
+ Kroah-Hartman, Harald Hoyer, Holger Hans Peter Freyther, Jan
+ Engelhardt, Jani Nikula, Jason St. John, Jeffrey Clark,
+ Jonathan Boulle, Kay Sievers, Lennart Poettering, Lukas
+ Nykryn, Lukasz Skalski, Łukasz Stelmach, Mantas Mikulėnas,
+ Marcel Holtmann, Martin Pitt, Matthew Monaco, Michael
+ Marineau, Michael Olbrich, Michal Sekletar, Mike Gilbert, Nis
+ Martensen, Patrik Flykt, Philip Lorenz, poma, Ray Strode,
+ Reyad Attiyat, Robert Milasan, Scott Thrasher, Stef Walter,
+ Steven Siloti, Susant Sahani, Tanu Kaskinen, Thomas Bächler,
+ Thomas Hindoe Paaboel Andersen, Tom Gundersen, Umut Tezduyar
+ Lindskog, WaLyong Cho, Will Woods, Zbigniew
+ Jędrzejewski-Szmek
+
+ -- Beijing, 2014-05-28
+
CHANGES WITH 212:
* When restoring the screen brightness at boot, stay away from
* sd-login gained new calls
sd_peer_get_{session,owner_uid,unit,user_unit,slice,machine_name}(),
to query the identity of the peer of a local AF_UNIX
- connection. They operate similar to their sd_pid_get_xyz()
+ connection. They operate similarly to their sd_pid_get_xyz()
counterparts.
* PID 1 will now maintain a system-wide system state engine
* systemd-nspawn gained a new --network-macvlan= setting to
set up a private macvlan interface for the
- container. Similar, systemd-networkd gained a new
+ container. Similarly, systemd-networkd gained a new
Kind=macvlan setting in .netdev files.
* systemd-networkd now supports configuring local addresses
kernel, and on seats that are not seat0.
* A new kernel command line option luks.options= is understood
- now which allows specifiying LUKS options for usage for LUKS
+ now which allows specifying LUKS options for usage for LUKS
encrypted partitions specified with luks.uuid=.
* tmpfiles.d(5) snippets may now use specifier expansion in
not available as public API.
* systemd will now look for the "debug" argument on the kernel
- command line and enable debug logging, similar to
+ command line and enable debug logging, similar to what
"systemd.log_level=debug" already did before.
* "systemctl set-default", "systemctl get-default" has been
* The various "environment" files, such as /etc/locale.conf
now support continuation lines with a backslash ("\") as
- last character in the line, similar in style (but different)
+ last character in the line, similarly in style (but different)
to how this is supported in shells.
* For normal user processes the _SYSTEMD_USER_UNIT= field is
* "systemctl unlock-sessions" has been added, that allows
unlocking the screens of all user sessions at once, similar
- how "systemctl lock-sessions" already locked all users
+ to how "systemctl lock-sessions" already locked all users
sessions. This is backed by a new D-Bus call UnlockSessions().
* "loginctl seat-status" will now show the master device of a
pager. This is only supported in conjunction with "less".
* journalctl gained a new "--user-unit=" option, that works
- similar to "--unit=" but filters for user units rather than
+ similarly to "--unit=" but filters for user units rather than
system units.
* A number of unit files to ease adoption of systemd in