NEWS

   1 systemd System and Service Manager
   2
   3 CHANGES WITH 184:
   4         * logind is now capable of (optionally) handling power and
   5           sleep keys as well as the lid switch.
   6
   7         * journalctl now understands the syntax "journalctl
   8           /usr/bin/avahi-daemon" to get all log output of a specific
   9           daemon.
  10
  11         * CapabilityBoundingSet= in system.conf now also influences
  12           the capability bound set of usermode helpers of the kernel.
  13
  14         Contributions from: Daniel Drake, Daniel J. Walsh, Gert
  15         Michael Kulyk, Harald Hoyer, Jean Delvare, Kay Sievers,
  16         Lennart Poettering, Matthew Garrett, Matthias Clasen, Paul
  17         Menzel, Shawn Landden, Tero Roponen, Tom Gundersen
  18
  19 CHANGES WITH 183:
  20         * Note that we skipped 139 releases here in order to set the
  21           new version to something that is greater than both udev's
  22           and systemd's most recent version number.
  23
  24         * udev: all udev sources are merged into the systemd source tree now.
  25           All future udev development will happen in the systemd tree. It
  26           is still fully supported to use the udev daemon and tools without
  27           systemd running, like in initramfs or other init systems. Building
  28           udev though, will require the *build* of the systemd tree, but
  29           udev can be properly *run* without systemd.
  30
  31         * udev: /lib/udev/devices/ are not read anymore; systemd-tmpfiles
  32           should be used to create dead device nodes as workarounds for broken
  33           subsystems.
  34
  35         * udev: RUN+="socket:..."  and udev_monitor_new_from_socket() is
  36           no longer supported. udev_monitor_new_from_netlink() needs to be
  37           used to subscribe to events.
  38
  39         * udev: when udevd is started by systemd, processes which are left
  40           behind by forking them off of udev rules, are unconditionally cleaned
  41           up and killed now after the event handling has finished. Services or
  42           daemons must be started as systemd services. Services can be
  43           pulled-in by udev to get started, but they can no longer be directly
  44           forked by udev rules.
  45
  46         * udev: the daemon binary is called systemd-udevd now and installed
  47           in /usr/lib/systemd/. Standalone builds or non-systemd systems need
  48           to adapt to that, create symlink, or rename the binary after building
  49           it.
  50
  51         * libudev no longer provides these symbols:
  52             udev_monitor_from_socket()
  53             udev_queue_get_failed_list_entry()
  54             udev_get_{dev,sys,run}_path()
  55           The versions number was bumped and symbol versioning introduced.
  56
  57         * systemd-loginctl and systemd-journalctl have been renamed
  58           to loginctl and journalctl to match systemctl.
  59
  60         * The config files: /etc/systemd/systemd-logind.conf and
  61           /etc/systemd/systemd-journald.conf have been renamed to
  62           logind.conf and journald.conf. Package updates should rename
  63           the files to the new names on upgrade.
  64
  65         * For almost all files the license is now LGPL2.1+, changed
  66           from the previous GPL2.0+. Exceptions are some minor stuff
  67           of udev (which will be changed to LGPL2.1 eventually, too),
  68           and the MIT licensed sd-daemon.[ch] library that is suitable
  69           to be used as drop-in files.
  70
  71         * systemd and logind now handle system sleep states, in
  72           particulary suspending and hibernating.
  73
  74         * logind now implements a sleep/shutdown/idle inhibiting logic
  75           suitable for a variety of uses. Soonishly Lennart will blog
  76           about this in more detail.
  77
  78         * var-run.mount and var-lock.mount are no longer provided
  79           (which prevously bind mounted these directories to their new
  80           places). Distributions which have not converted these
  81           directories to symlinks should consider stealing these files
  82           from git history and add them downstream.
  83
  84         * We introduced the Documentation= field for units and added
  85           this to all our shipped units. This is useful to make it
  86           easier to explore the boot and the purpose of the various
  87           units.
  88
  89         * All smaller setup units (such as
  90           systemd-vconsole-setup.service) now detect properly if they
  91           are run in a container and are skipped when
  92           appropriate. This guarantees an entirely noise-free boot in
  93           Linux container environments such as systemd-nspawn.
  94
  95         * A framework for implementing offline system updates is now
  96           integrated, for details see:
  97           http://freedesktop.org/wiki/Software/systemd/SystemUpdates
  98
  99         * A new service type Type=idle is available now which helps us
 100           avoiding ugly interleaving of getty output and boot status
 101           messages.
 102
 103         * There's now a system-wide CapabilityBoundingSet= option to
 104           globally reduce the set of capabilities for the
 105           system. This is useful to drop CAP_SYS_MKNOD, CAP_SYS_RAWIO,
 106           CAP_NET_RAW, CAP_SYS_MODULE, CAP_SYS_TIME, CAP_SYS_PTRACE or
 107           even CAP_NET_ADMIN system-wide for secure systems.
 108
 109         * There are now system-wide DefaultLimitXXX= options to
 110           globally change the defaults of the various resource limits
 111           for all units started by PID 1.
 112
 113         * Harald Hoyer's systemd test suite has been integrated into
 114           systemd which allows easy testing of systemd builds in qemu
 115           and nspawn. (This is really awesome! Ask us for details!)
 116
 117         * The fstab parser is now implemented as generator, not inside
 118           of PID 1 anymore.
 119
 120         * systemctl will now warn you if .mount units generated from
 121           /etc/fstab are out of date due to changes in fstab that
 122           haven't been read by systemd yet.
 123
 124         * systemd is now suitable for usage in initrds. Dracut has
 125           already been updated to make use of this. With this in place
 126           initrds get a slight bit faster but primarily are much
 127           easier to introspect and debug since "systemctl status" in
 128           the host system can be used to introspect initrd services,
 129           and the journal from the initrd is kept around too.
 130
 131         * systemd-delta has been added, a tool to explore differences
 132           between user/admin configuration and vendor defaults.
 133
 134         * PrivateTmp= now affects both /tmp and /var/tmp.
 135
 136         * Boot time status messages are now much prettier and feature
 137           proper english language. Booting up systemd has never been
 138           so sexy.
 139
 140         * Read-ahead pack files now include the inode number of all
 141           files to pre-cache. When the inode changes the pre-caching
 142           is not attempted. This should be nicer to deal with updated
 143           packages which might result in changes of read-ahead
 144           patterns.
 145
 146         * We now temporaritly lower the kernel's read_ahead_kb variable
 147           when collecting read-ahead data to ensure the kernel's
 148           built-in read-ahead does not add noise to our measurements
 149           of necessary blocks to pre-cache.
 150
 151         * There's now RequiresMountsFor= to add automatic dependencies
 152           for all mounts necessary for a specific file system path.
 153
 154         * MountAuto= and SwapAuto= have been removed from
 155           system.conf. Mounting file systems at boot has to take place
 156           in systemd now.
 157
 158         * nspawn now learned a new switch --uuid= to set the machine
 159           ID on the command line.
 160
 161         * nspawn now learned the -b switch to automatically search
 162           for an init system.
 163
 164         * vt102 is now the default TERM for serial TTYs, upgraded from
 165           vt100.
 166
 167         * systemd-logind now works on VT-less systems.
 168
 169         * The build tree has been reorganized. The individual
 170           components now have directories of their own.
 171
 172         * A new condition type ConditionPathIsReadWrite= is now available.
 173
 174         * nspawn learned the new -C switch to create cgroups for the
 175           container in other hierarchies.
 176
 177         * We now have support for hardware watchdogs, configurable in
 178           system.conf.
 179
 180         * The scheduled shutdown logic now has a public API.
 181
 182         * We now mount /tmp as tmpfs by default, but this can be
 183           masked and /etc/fstab can override it.
 184
 185         * Since udisks doesn't make use of /media anymore we are not
 186           mounting a tmpfs on it anymore.
 187
 188         * journalctl gained a new --local switch to only interleave
 189           locally generated journal files.
 190
 191         * We can now load the IMA policy at boot automatically.
 192
 193         * The GTK tools have been split off into a systemd-ui.
 194
 195         Contributions from: Andreas Schwab, Auke Kok, Ayan George,
 196         Colin Guthrie, Daniel Mack, Dave Reisner, David Ward, Elan
 197         Ruusamäe, Frederic Crozat, Gergely Nagy, Guillermo Vidal,
 198         Hannes Reinecke, Harald Hoyer, Javier Jardón, Kay Sievers,
 199         Lennart Poettering, Lucas De Marchi, Léo Gillot-Lamure,
 200         Marc-Antoine Perennou, Martin Pitt, Matthew Monaco, Maxim
 201         A. Mikityanskiy, Michael Biebl, Michael Olbrich, Michal
 202         Schmidt, Nis Martensen, Patrick McCarty, Roberto Sassu, Shawn
 203         Landden, Sjoerd Simons, Sven Anders, Tollef Fog Heen, Tom
 204         Gundersen
 205
 206 CHANGES WITH 44:
 207         * This is mostly a bugfix release
 208
 209         * Support optional initialization of the machine ID from the
 210           KVM or container configured UUID.
 211
 212         * Support immediate reboots with "systemctl reboot -ff"
 213
 214         * Show /etc/os-release data in systemd-analyze output
 215
 216         * Many bugfixes for the journal, including endianess fixes and
 217           ensuring that disk space enforcement works
 218
 219         * sd-login.h is C++ comptaible again
 220
 221         * Extend the /etc/os-release format on request of the Debian
 222           folks
 223
 224         * We now refuse non-UTF8 strings used in various configuration
 225           and unit files. This is done to ensure we don't pass invalid
 226           data over D-Bus or expose it elsewhere.
 227
 228         * Register Mimo USB Screens as suitable for automatic seat
 229           configuration
 230
 231         * Read SELinux client context from journal clients in a race
 232           free fashion
 233
 234         * Reorder configuration file lookup order. /etc now always
 235           overrides /run in order to allow the administrator to always
 236           and unconditionally override vendor supplied or
 237           automatically generated data.
 238
 239         * The various user visible bits of the journal now have man
 240           pages. We still lack man pages for the journal API calls
 241           however.
 242
 243         * We now ship all man pages in HTML format again in the
 244           tarball.
 245
 246         Contributions from: Dave Reisner, Dirk Eibach, Frederic
 247         Crozat, Harald Hoyer, Kay Sievers, Lennart Poettering, Marti
 248         Raudsepp, Michal Schmidt, Shawn Landden, Tero Roponen, Thierry
 249         Reding
 250
 251 CHANGES WITH 43:
 252         * This is mostly a bugfix release
 253
 254         * systems lacking /etc/os-release  are no longer supported.
 255
 256         * Various functionality updates to libsystemd-login.so
 257
 258         * Track class of PAM logins to distuingish greeters from
 259           normal user logins.
 260
 261         Contributions from: Kay Sievers, Lennart Poettering, Michael
 262         Biebl
 263
 264 CHANGES WITH 42:
 265         * This is an important bugfix release for v41.
 266
 267         * Building man pages is now optional which should be useful
 268           for those building systemd from git but unwilling to install
 269           xsltproc.
 270
 271         * Watchdog support for supervising services is now usable. In
 272           a future release support for hardware watchdogs
 273           (i.e. /dev/watchdog) will be added building on this.
 274
 275         * Service start rate limiting is now configurable and can be
 276           turned off per service. When a start rate limit is hit a
 277           reboot can automatically be triggered.
 278
 279         * New CanReboot(), CanPowerOff() bus calls in systemd-logind.
 280
 281         Contributions from: Benjamin Franzke, Bill Nottingham,
 282         Frederic Crozat, Lennart Poettering, Michael Olbrich, Michal
 283         Schmidt, Michał Górny, Piotr Drąg
 284
 285 CHANGES WITH 41:
 286         * The systemd binary is installed /usr/lib/systemd/systemd now;
 287           An existing /sbin/init symlink needs to be adapted with the
 288           package update.
 289
 290         * The code that loads kernel modules has been ported to invoke
 291           libkmod directly, instead of modprobe. This means we do not
 292           support systems with module-init-tools anymore.
 293
 294         * Watchdog support is now already useful, but still not
 295           complete.
 296
 297         * A new kernel command line option systemd.setenv= is
 298           understood to set system wide environment variables
 299           dynamically at boot.
 300
 301         * We now limit the set of capabilities of systemd-journald.
 302
 303         * We now set SIGPIPE to ignore by default, since it only is
 304           useful in shell pipelines, and has little use in general
 305           code. This can be disabled with IgnoreSIPIPE=no in unit
 306           files.
 307
 308         Contributions from: Benjamin Franzke, Kay Sievers, Lennart
 309         Poettering, Michael Olbrich, Michal Schmidt, Tom Gundersen,
 310         William Douglas
 311
 312 CHANGES WITH 40:
 313         * This is mostly a bugfix release
 314
 315         * We now expose the reason why a service failed in the
 316           "Result" D-Bus property.
 317
 318         * Rudimentary service watchdog support (will be completed over
 319           the next few releases.)
 320
 321         * When systemd forks off in order execute some service we will
 322           now immediately changes its argv[0] to reflect which process
 323           it will execute. This is useful to minimize the time window
 324           with a generic argv[0], which makes bootcharts more useful
 325
 326         Contributions from: Alvaro Soliverez, Chris Paulson-Ellis, Kay
 327         Sievers, Lennart Poettering, Michael Olbrich, Michal Schmidt,
 328         Mike Kazantsev, Ray Strode
 329
 330 CHANGES WITH 39:
 331         * This is mostly a test release, but incorporates many
 332           bugfixes.
 333
 334         * New systemd-cgtop tool to show control groups by their
 335           resource usage.
 336
 337         * Linking against libacl for ACLs is optional again. If
 338           disabled, support tracking device access for active logins
 339           goes becomes unavailable, and so does access to the user
 340           journals by the respective users.
 341
 342         * If a group "adm" exists, journal files are automatically
 343           owned by them, thus allow members of this group full access
 344           to the system journal as well as all user journals.
 345
 346         * The journal now stores the SELinux context of the logging
 347           client for all entries.
 348
 349         * Add C++ inclusion guards to all public headers
 350
 351         * New output mode "cat" in the journal to print only text
 352           messages, without any meta data like date or time.
 353
 354         * Include tiny X server wrapper as a temporary stop-gap to
 355           teach XOrg udev display enumeration. This is used by display
 356           managers such as gdm, and will go away as soon as XOrg
 357           learned native udev hotplugging for display devices.
 358
 359         * Add new systemd-cat tool for executing arbitrary programs
 360           with STDERR/STDOUT connected to the journal. Can also act as
 361           BSD logger replacement, and does so by default.
 362
 363         * Optionally store all locally generated coredumps in the
 364           journal along with meta data.
 365
 366         * systemd-tmpfiles learnt four new commands: n, L, c, b, for
 367           writing short strings to files (for usage for /sys), and for
 368           creating symlinks, character and block device nodes.
 369
 370         * New unit file option ControlGroupPersistent= to make cgroups
 371           persistent, following the mechanisms outlined in
 372           http://www.freedesktop.org/wiki/Software/systemd/PaxControlGroups
 373
 374         * Support multiple local RTCs in a sane way
 375
 376         * No longer monopolize IO when replaying readahead data on
 377           rotating disks, since we might starve non-file-system IO to
 378           death, since fanotify() will not see accesses done by blkid,
 379           or fsck.
 380
 381         * Don't show kernel threads in systemd-cgls anymore, unless
 382           requested with new -k switch.
 383
 384         Contributions from: Dan Horák, Kay Sievers, Lennart
 385         Poettering, Michal Schmidt
 386
 387 CHANGES WITH 38:
 388         * This is mostly a test release, but incorporates many
 389           bugfixes.
 390
 391         * The git repository moved to:
 392           git://anongit.freedesktop.org/systemd/systemd
 393           ssh://git.freedesktop.org/git/systemd/systemd
 394
 395         * First release with the journal
 396           http://0pointer.de/blog/projects/the-journal.html
 397
 398         * The journal replaces both systemd-kmsg-syslogd and
 399           systemd-stdout-bridge.
 400
 401         * New sd_pid_get_unit() API call in libsystemd-logind
 402
 403         * Many systemadm clean-ups
 404
 405         * Introduce remote-fs-pre.target which is ordered before all
 406           remote mounts and may be used to start services before all
 407           remote mounts.
 408
 409         * Added Mageia support
 410
 411         * Add bash completion for systemd-loginctl
 412
 413         * Actively monitor PID file creation for daemons which exit in
 414           the parent process before having finished writing the PID
 415           file in the daemon process. Daemons which do this need to be
 416           fixed (i.e. PID file creation must have finished before the
 417           parent exits), but we now react a bit more gracefully to them.
 418
 419         * Add colourful boot output, mimicking the well-known output
 420           of existing distributions.
 421
 422         * New option PassCredentials= for socket units, for
 423           compatibility with a recent kernel ABI breakage.
 424
 425         * /etc/rc.local is now hooked in via a generator binary, and
 426           thus will no longer act as synchronization point during
 427           boot.
 428
 429         * systemctl list-unit-files now supports --root=.
 430
 431         * systemd-tmpfiles now understands two new commands: z, Z for
 432           relabelling files according to the SELinux database. This is
 433           useful to apply SELinux labels to specific files in /sys,
 434           among other things.
 435
 436         * Output of SysV services is now forwarded to both the console
 437           and the journal by default, not only just the console.
 438
 439         * New man pages for all APIs from libsystemd-login.
 440
 441         * The build tree got reorganized and a the build system is a
 442           lot more modular allowing embedded setups to specifically
 443           select the components of systemd they are interested in.
 444
 445         * Support for Linux systems lacking the kernel VT subsystem is
 446           restored.
 447
 448         * configure's --with-rootdir= got renamed to
 449           --with-rootprefix= to follow the naming used by udev and
 450           kmod
 451
 452         * Unless specified otherwise we'll now install to /usr instead
 453           of /usr/local by default.
 454
 455         * Processes with '@' in argv[0][0] are now excluded from the
 456           final shut-down killing spree, following the logic explained
 457           in:
 458           http://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons
 459
 460         * All processes remaining in a service cgroup when we enter
 461           the START or START_PRE states are now killed with
 462           SIGKILL. That means it is no longer possible to spawn
 463           background processes from ExecStart= lines (which was never
 464           supported anyway, and bad style).
 465
 466         * New PropagateReloadTo=/PropagateReloadFrom= options to bind
 467           reloading of units together.
 468
 469         Contributions from: Bill Nottingham, Daniel J. Walsh, Dave
 470         Reisner, Dexter Morgan, Gregs Gregs, Jonathan Nieder, Kay
 471         Sievers, Lennart Poettering, Michael Biebl, Michal Schmidt,
 472         Michał Górny, Ran Benita, Thomas Jarosch, Tim Waugh, Tollef
 473         Fog Heen, Tom Gundersen, Zbigniew Jędrzejewski-Szmek