X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=NEWS;h=96f0dd79f933eedd33d3a91e124f6e8ee72675e7;hp=6fc752ba99b98293a01798dcfb39aa79c0c30325;hb=f4b2933ee7890e5d414ab266d8586f19027a2bd9;hpb=c7435cc9115f5c8166433fd5ece028c06360ecd1 diff --git a/NEWS b/NEWS index 6fc752ba9..96f0dd79f 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,419 @@ systemd System and Service Manager +CHANGES WITH 217: + + * journalctl gained the new options -t/--identifier= to match + on the syslog identifier (aka "tag"), as well as --utc to + show log timestamps in the UTC timezone. journalctl now also + accepts -n/--lines=all to disable line capping in a pager. + + * journalctl gained a new switch, --flush, that synchronously + flushes logs from /run/log/journal to /var/log/journal if + persistent storage is enabled. systemd-journal-flush.service + now waits until the operation is complete. + + * Services can notify the manager before they start a reload + (by sending RELOADING=1) or shutdown (by sending + STOPPING=1). This allows the manager to track and show the + internal state of daemons and closes a race condition when + the process is still running but has closed its D-Bus + connection. + + * Services with Type=oneshot do not have to have any ExecStart + commands anymore. + + * User units are now loaded also from + $XDG_RUNTIME_DIR/systemd/user/. This is similar to the + /run/systemd/user directory that was already previously + supported, but is under the control of the user. + + * Job timeouts (i.e. time-outs on the time a job that is + queued stays in the run queue) can now optionally result in + immediate reboot or power-off actions (JobTimeoutAction= and + JobTimeoutRebootArgument=). This is useful on ".target" + units, to limit the maximum time a target remains + undispatched in the run queue, and to trigger an emergency + operation in such a case. This is now used by default to + turn off the system if boot-up (as defined by everything in + basic.target) hangs and does not complete for at least + 15min. Also, if power-off or reboot hang for at least 30min + an immediate power-off/reboot operation is triggered. This + functionality is particularly useful to increase reliability + on embedded devices, but also on laptops which might + accidentally get powered on when carried in a backpack and + whose boot stays stuck in a hard disk encryption passphrase + question. + + * systemd-logind can be configured to also handle lid switch + events even when the machine is docked or multiple displays + are attached (HandleLidSwitchDocked= option). + + * A helper binary and a service have been added which can be + used to resume from hibernation in the initramfs. A + generator will parse the resume= option on the kernel + command-line to trigger resume. + + * A user console daemon systemd-consoled has been + added. Currently, it is a preview, and will so far open a + single terminal on each session of the user marked as + Desktop=systemd-console. + + * Route metrics can be specified for DHCP routes added by + systemd-networkd. + + * The SELinux context of socket-activated services can be set + from the information provided by the networking stack + (SELinuxContextFromNet= option). + + * Userspace firmware loading support has been removed and + the minimum supported kernel version is thus bumped to 3.7. + + * Timeout for udev workers has been increased from 1 to 3 + minutes, but a warning will be printed after 1 minute to + help diagnose kernel modules that take a long time to load. + + * Udev rules can now remove tags on devices with TAG-="foobar". + + * systemd's readahead implementation has been removed. In many + circumstances it didn't give expected benefits even for + rotational disk drives and was becoming less relevant in the + age of SSDs. As none of the developers has been using + rotating media anymore, and nobody stepped up to actively + maintain this component of systemd it has now been removed. + + * Swap units can use Options= to specify discard options. + Discard options specified for swaps in /etc/fstab are now + respected. + + * Docker containers are now detected as a separate type of + virtualization. + + * The Password Agent protocol gained support for queries where + the user input is shown, useful e.g. for user names. + systemd-ask-password gained a new --echo option to turn that + on. + + * The default sysctl.d/ snippets will now set: + + net.core.default_qdisc = fq_codel + + This selects Fair Queuing Controlled Delay as the default + queuing discipline for network interfaces. fq_codel helps + fight the network bufferbloat problem. It is believed to be + a good default with no tuning required for most workloads. + Downstream distributions may override this choice. On 10Gbit + servers that do not do forwarding, "fq" may perform better. + Systems without a good clocksource should use "pfifo_fast". + + * If kdbus is enabled during build a new option BusPolicy= is + available for service units, that allows locking all service + processes into a stricter bus policy, in order to limit + access to various bus services, or even hide most of them + from the service's view entirely. + + * networkctl will now show the .network and .link file + networkd has applied to a specific interface. + + * sd-login gained a new API call sd_session_get_desktop() to + query which desktop environment has been selected for a + session. + + * UNIX utmp support is now compile-time optional to support + legacy-free systems. + + * systemctl gained two new commands "add-wants" and + "add-requires" for pulling in units from specific targets + easily. + + * If the word "rescue" is specified on the kernel command line + the system will now boot into rescue mode (aka + rescue.target), which was previously available only by + specifying "1" or "systemd.unit=rescue.target" on the kernel + command line. This new kernel command line option nicely + mirrors the already existing "emergency" kernel command line + option. + + * New kernel command line options mount.usr=, mount.usrflags=, + mount.usrfstype= have been added that match root=, rootflags=, + rootfstype= but allow mounting a specific file system to + /usr. + + * The $NOTIFY_SOCKET is now also passed to control processes of + services, not only the main process. + + * This version reenables support for fsck's -l switch. This + means at least version v2.25 of util-linux is required for + operation, otherwise dead-locks on device nodes may + occur. Again: you need to update util-linux to at least + v2.25 when updating systemd to v217. + + * The "multi-seat-x" tool has been removed from systemd, as + its functionality has been integrated into X servers 1.16, + and the tool is hence redundant. It is recommended to update + display managers invoking this tool to simply invoke X + directly from now on, again. + + * Support for the new ALLOW_INTERACTIVE_AUTHORIZATION D-Bus + message flag has been added for all of systemd's PolicyKit + authenticated method calls has been added. In particular + this now allows optional interactive authorization via + PolicyKit for many of PID1's privileged operations such as + unit file enabling and disabling. + + * "udevadm hwdb --update" learnt a new switch "--usr" for + placing the rebuilt hardware database in /usr instead of + /etc. When used only hardware database entries stored in + /usr will be used, and any user database entries in /etc are + ignored. This functionality is useful for vendors to ship a + pre-built database on systems where local configuration is + unnecessary or unlikely. + + * Calendar time specifications in .timer units now also + understand the strings "semi-annually", "quarterly" and + "minutely" as shortcuts (in addition to the preexisting + "anually", "hourly", ...). + + * systemd-tmpfiles will now correctly create files in /dev + at boot which are marked for creation only at boot. It is + recommended to always create static device nodes with 'c!' + and 'b!', so that they are created only at boot and not + overwritten at runtime. + + * When the watchdog logic is used for a service (WatchdogSec=) + and the watchdog timeout is hit the service will now be + terminated with SIGABRT (instead of just SIGTERM), in order + to make sure a proper coredump and backtrace is + generated. This ensures that hanging services will result in + similar coredump/backtrace behaviour as services that hit a + segmentation fault. + + Contributions from: Andreas Henriksson, Andrei Borzenkov, + Angus Gibson, Ansgar Burchardt, Ben Wolsieffer, Brandon L. + Black, Christian Hesse, Cristian Rodríguez, Daniel Buch, + Daniele Medri, Daniel Mack, Dan Williams, Dave Reisner, David + Herrmann, David Sommerseth, David Strauss, Emil Renner + Berthing, Eric Cook, Evangelos Foutras, Filipe Brandenburger, + Gustavo Sverzut Barbieri, Hans de Goede, Harald Hoyer, Hristo + Venev, Hugo Grostabussiat, Ivan Shapovalov, Jan Janssen, Jan + Synacek, Jonathan Liu, Juho Son, Karel Zak, Kay Sievers, Klaus + Purer, Koen Kooi, Lennart Poettering, Lukas Nykryn, Lukasz + Skalski, Łukasz Stelmach, Mantas Mikulėnas, Marcel Holtmann, + Marius Tessmann, Marko Myllynen, Martin Pitt, Michael Biebl, + Michael Marineau, Michael Olbrich, Michael Scherer, Michal + Schmidt, Michal Sekletar, Miroslav Lichvar, Patrik Flykt, + Philippe De Swert, Piotr Drąg, Rahul Sundaram, Richard + Weinberger, Robert Milasan, Ronny Chevalier, Ruben Kerkhof, + Santiago Vila, Sergey Ptashnick, Simon McVittie, Sjoerd + Simons, Stefan Brüns, Steven Allen, Steven Noonan, Susant + Sahani, Sylvain Plantefève, Thomas Hindoe Paaboel Andersen, + Timofey Titovets, Tobias Hunger, Tom Gundersen, Torstein + Husebø, Umut Tezduyar Lindskog, WaLyong Cho, Zbigniew + Jędrzejewski-Szmek. + + -- Berlin, 2014-10-28 + +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 @@ -292,7 +706,7 @@ CHANGES WITH 214: 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, ProtectedHome= and ProtectedSystem=, + * 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 @@ -404,7 +818,7 @@ CHANGES WITH 214: * Access modes specified in tmpfiles snippets may now be prefixed with "~", which indicates that they shall be masked - by whether the existing file or directly is currently + 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. @@ -1411,7 +1825,7 @@ CHANGES WITH 208: 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 @@ -1562,8 +1976,8 @@ CHANGES WITH 207: certain paths from operation. * journald will now automatically flush all messages to disk - as soon as a message of the log priorities CRIT, ALERT or - EMERG is received. + as soon as a message at the log level CRIT, ALERT or EMERG + is received. Contributions from: Andrew Cook, Brandon Philips, Christian Hesse, Christoph Junghans, Colin Walters, Daniel Schaal,