X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=NEWS;h=60c669e92ab07f0f5e76d699a65c20882dadd055;hp=99fb50fd2bd5d2816400b7e6daf89740587c0024;hb=c4aa09b06f835c91cea9e021df4c3605cff2318d;hpb=1aed45907715ad4dce7dbc84a957cd5de8cca36e diff --git a/NEWS b/NEWS index 99fb50fd2..60c669e92 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,88 @@ systemd System and Service Manager +CHANGES WITH 200: + + * The boot-time readahead implementation for rotating media + will now read the read-ahead data in multiple passes which + consist of all read requests made in equidistant time + intervals. This means instead of strictly reading read-ahead + data in its physical order on disk we now try to find a + middle ground between physical and access time order. + + * /etc/os-release files gained a new BUILD_ID= field for usage + on operating systems that provide continuous builds of OS + images. + + Contributions from: Auke Kok, Eelco Dolstra, Kay Sievers, + Lennart Poettering, Lukas Nykryn, Martin Pitt, Václav Pavlín + William Douglas, Zbigniew Jędrzejewski-Szmek + +CHANGES WITH 199: + + * systemd-python gained an API exposing libsystemd-daemon. + + * The SMACK setup logic gained support for uploading CIPSO + security policy. + + * Behaviour of PrivateTmp=, ReadWriteDirectories=, + ReadOnlyDirectories= and InaccessibleDirectories= has + changed. The private /tmp and /var/tmp directories are now + shared by all processes of a service (which means + ExecStartPre= may now leave data in /tmp that ExecStart= of + the same service can still access). When a service is + stopped its temporary directories are immediately deleted + (normal clean-up with tmpfiles is still done in addition to + this though). + + * By default, systemd will now set a couple of sysctl + variables in the kernel: the safe sysrq options are turned + on, IP route verification is turned on, and source routing + disabled. The recently added hardlink and softlink + protection of the kernel is turned on. These settings should + be reasonably safe, and good defaults for all new systems. + + * The predictable network naming logic may now be turned off + with a new kernel command line switch: net.ifnames=0. + + * A new libsystemd-bus module has been added that implements a + pretty complete D-Bus client library. For details see: + + http://lists.freedesktop.org/archives/systemd-devel/2013-March/009797.html + + * journald will now explicitly flush the journal files to disk + at the latest 5min after each write. The file will then also + be marked offline until the next write. This should increase + reliability in case of a crash. The synchronization delay + can be configured via SyncIntervalSec= in journald.conf. + + * There's a new remote-fs-setup.target unit that can be used + to pull in specific services when at least one remote file + system is to be mounted. + + * There are new targets timers.target and paths.target as + canonical targets to pull user timer and path units in + from. This complements sockets.target with a similar + purpose for socket units. + + * libudev gained a new call udev_device_set_attribute_value() + to set sysfs attributes of a device. + + * The udev daemon now sets the default number of worker + processes executed in parallel based on the number of available + CPUs instead of the amount of available RAM. This is supposed + to provide a more reliable default and limit a too agressive + paralellism for setups with 1000s of devices connected. + + Contributions from: Auke Kok, Colin Walters, Cristian + Rodríguez, Daniel Buch, Dave Reisner, Frederic Crozat, Hannes + Reinecke, Harald Hoyer, Jan Alexander Steffens, Jan + Engelhardt, Josh Triplett, Kay Sievers, Lennart Poettering, + Mantas Mikulėnas, Martin Pitt, Mathieu Bridon, Michael Biebl, + Michal Schmidt, Michal Sekletar, Miklos Vajna, Nathaniel Chen, + Oleksii Shevchuk, Ozan Çağlayan, Thomas Hindoe Paaboel + Andersen, Tollef Fog Heen, Tom Gundersen, Umut Tezduyar, + Zbigniew Jędrzejewski-Szmek + CHANGES WITH 198: * Configuration of unit files may now be extended via drop-in @@ -7,7 +90,7 @@ CHANGES WITH 198: themselves. More specifically, if the administrator wants to change one value for a service file foobar.service he can now do so by dropping in a configuration snippet into - /etc/systemd/systemd/foobar.service.d/*.conf. The unit logic + /etc/systemd/system/foobar.service.d/*.conf. The unit logic will load all these snippets and apply them on top of the main unit configuration file, possibly extending or overriding its settings. Using these drop-in snippets is @@ -17,19 +100,19 @@ CHANGES WITH 198: them there; or creating a new file in /etc/systemd/system/ that incorporates the original one via ".include". Drop-in snippets into these .d/ directories can be placed in any - directory systems looks for units in, and the usual + directory systemd looks for units in, and the usual overriding semantics between /usr/lib, /etc and /run apply for them too. * Most unit file settings which take lists of items can now be - reset by assigning the empty strings to them. For example, + reset by assigning the empty string to them. For example, normally, settings such as Environment=FOO=BAR append a new environment variable assignment to the environment block, each time they are used. By assigning Environment= the empty string the environment block can be reset to empty. This is particularly useful with the .d/*.conf drop-in snippets - mentioned above, since this allows resetting list settings - from vendor unit files via these drop-ins. + mentioned above, since this adds the ability to reset list + settings from vendor unit files via these drop-ins. * systemctl gained a new "list-dependencies" command for listing the dependencies of a unit recursively. @@ -44,36 +127,36 @@ CHANGES WITH 198: for all units. More specifically, you can now use a command like "systemctl set-cgroup-attr foobar.service cpu.shares 2000" to alter the CPU shares a specific service gets. These - settings are stores persistently on disk, and thus allow the + settings are stored persistently on disk, and thus allow the administrator to easily adjust the resource usage of services with a few simple commands. This dynamic resource - management logic is also available to other services via the + management logic is also available to other programs via the bus. Almost any kernel cgroup attribute and controller is supported. * systemd-vconsole-setup will now copy all font settings to - all open VTs, where it previously applied them only to the - foreground VT. + all allocated VTs, where it previously applied them only to + the foreground VT. * libsystemd-login gained the new sd_session_get_tty() API call. - * This release drops support with a few - legacy/distribution-specific LSB facility names when parsing - init scripts: $x-display-manager, $mail-transfer-agent, + * This release drops support for a few legacy or + distribution-specific LSB facility names when parsing init + scripts: $x-display-manager, $mail-transfer-agent, $mail-transport-agent, $mail-transfer-agent, $smtp, $null. Also, the mail-transfer-agent.target unit backing this has been removed. Distributions which want to retain - compatibility with this should carry the burden for support - this themselves and patch support for these back in if they - really need to. Also, the facilities $syslog and $local_fs - are now ignored, since systemd does not support early-boot - LSB init scripts anymore, and these facilities are implied - anyway for normal services. syslog.target has also been - removed. + compatibility with this should carry the burden for + supporting this themselves and patch support for these back + in, if they really need to. Also, the facilities $syslog and + $local_fs are now ignored, since systemd does not support + early-boot LSB init scripts anymore, and these facilities + are implied anyway for normal services. syslog.target has + also been removed. * There are new bus calls on PID1's Manager object for - canceling jobs, and removing snapshot units. Previously, + cancelling jobs, and removing snapshot units. Previously, both calls were only available on the Job and Snapshot objects themselves. @@ -104,22 +187,22 @@ CHANGES WITH 198: container. * nspawn will now mount its own devpts file system instance - into the container, in order not to leake pty devices from + into the container, in order not to leak pty devices from the host into the container. * systemd will now read the firmware boot time performance - from the EFI variables, if the used boot loader supports - this, and take it into account for boot performance analysis - via "systemd-analyze". This is currently supported only in - conjunction with Gummiboot, but could be supported by other - boot loaders too. For details see: + information from the EFI variables, if the used boot loader + supports this, and takes it into account for boot performance + analysis via "systemd-analyze". This is currently supported + only in conjunction with Gummiboot, but could be supported + by other boot loaders too. For details see: http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface * A new generator has been added that automatically mounts the EFI System Partition (ESP) to /boot, if that directory - exists, is empty, and no other partition has been configured - to be mounted there. + exists, is empty, and no other file system has been + configured to be mounted there. * logind will now send out PrepareForSleep(false) out unconditionally, after coming back from suspend. This may be @@ -181,7 +264,7 @@ CHANGES WITH 198: * Operations such as "systemctl start" can now be executed with a new mode "--irreversible" which may be used to queue operations that cannot accidentally be reversed by a later - job queuing. This is by default use to make shutdown + job queuing. This is by default used to make shutdown requests more robust. * The Python API of systemd now gained a new module for @@ -193,7 +276,7 @@ CHANGES WITH 198: http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec * Boot time console output has been improved to provide - animated boot time output. + animated boot time output for hanging jobs. * A new tool systemd-activate has been added which can be used to test socket activation with, directly from the command @@ -203,6 +286,10 @@ CHANGES WITH 198: * journalctl gained a new "--reverse" (or -r) option to show journal output in reverse order (i.e. newest line first). + * journalctl gained a new "--pager-end" (or -e) option to jump + to immediately jump to the end of the journal in the + 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 system units. @@ -214,7 +301,7 @@ CHANGES WITH 198: * The journal files are now owned by a new group "systemd-journal", which exists specifically to allow access to the journal, and nothing else. Previously, we used the - "adm" group for that, which however possible covers more + "adm" group for that, which however possibly covers more than just journal/log file access. This new group is now already used by systemd-journal-gatewayd to ensure this daemon gets access to the journal files and as little else @@ -222,7 +309,7 @@ CHANGES WITH 198: up for /var/log/journal to give "adm" and "wheel" read access to it, in addition to "systemd-journal" which owns the journal files. We recommend that packaging scripts also - add read access to "adm", "wheel" to /var/log/journal, and + add read access to "adm" + "wheel" to /var/log/journal, and all existing/future journal files. To normal users and administrators little changes, however packagers need to ensure to create the "systemd-journal" system group at