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Zbigniew Jędrzejewski-Szmek 953bf4604f units: add system-update-cleanup.service to guard against offline-update loops 
Note: the name is "system-update-cleanup.service" rather than
"system-update-done.service", because it should not run normally, and also
because there's already "systemd-update-done.service", and having them named
so similarly would be confusing.

In https://bugzilla.redhat.com/show_bug.cgi?id=1395686 the system repeatedly
entered system-update.target on boot. Because of a packaging issue, the tool
that created the /system-update symlink could be installed without the service
unit that was supposed to perform the upgrade (and remove the symlink). In
fact, if there are no units in system-update.target, and /system-update symlink
is created, systemd always "hangs" in system-update.target. This is confusing
for users, because there's no feedback what is happening, and fixing this
requires starting an emergency shell somehow, and also knowing that the symlink
must be removed. We should be more resilient in this case, and remove the
symlink automatically ourselves, if there are no upgrade service to handle it.

This adds a service which is started after system-update.target is reached and
the symlink still exists. It nukes the symlink and reboots the machine. It
should subsequently boot into the default default.target.

This is a more general fix for
https://bugzilla.redhat.com/show_bug.cgi?id=1395686 (the packaging issue was
already fixed).
2016-11-29 01:40:34 -05:00
..
user units: install user units as real files, not symlinks to ../system/ 2016-08-19 09:55:55 -04:00
.gitignore units: add system-update-cleanup.service to guard against offline-update loops 2016-11-29 01:40:34 -05:00
basic.target Merge pull request #2565 from poettering/fix-2315 2016-02-09 19:13:15 -05:00
bluetooth.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
busnames.target units: install busnames.target by default 2013-12-03 01:18:26 +01:00
console-getty.service.m4.in console-getty.service: don't start when /dev/console is missing 2015-03-17 12:40:56 +01:00
container-getty@.service.m4.in units: fix all TTY paths for container gettys 2015-01-27 14:31:44 +01:00
cryptsetup-pre.target cryptsetup: introduce new cryptsetup-pre.traget unit so that services can make sure they are started before and stopped after any LUKS setup 2014-06-18 00:09:46 +02:00
cryptsetup.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
debug-shell.service.in debug-shell: add condition for tty device to run on 2014-06-12 22:26:43 +02:00
dev-hugepages.mount units: disable /dev/hugepages in private user namespaces 2016-10-26 20:12:52 -04:00
dev-mqueue.mount units: don't try to mount the mqueue fs if we lack the privileges for it 2016-02-11 02:45:11 +00:00
emergency.service.in emergency.service: Don't say "Welcome" when it's an emergency (#3569) 2016-06-21 16:09:47 +02:00
emergency.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
exit.target containers: systemd exits with non-zero code 2015-09-21 17:32:45 +02:00
final.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
getty.target unit: link up getty configuration from man page and unit files 2012-11-20 20:10:30 +01:00
getty@.service.m4 getty@.service.m4: add Conflicts=/Before= against rescue.service (#3792) 2016-07-25 16:18:00 +02:00
graphical.target units: make graphical.target dependencies more complete and similar to those of multi-user.target 2014-12-29 17:00:05 +01:00
halt-local.service.in build-sys: make rc-local support part of SYSV compat 2013-01-04 23:26:20 +01:00
halt.target units: rename halt/hibernate/kexec/poweroff/reboot/suspend to systed-xxx 2012-06-25 14:28:50 +02:00
hibernate.target unit: rename BindTo= to BindsTo= 2012-07-13 23:34:40 +02:00
hybrid-sleep.target logind: support for hybrid sleep (i.e. suspend+hibernate at the same time) 2012-10-28 00:50:35 +02:00
initrd-cleanup.service.in core: replace OnFailureIsolate= setting by a more generic OnFailureJobMode= setting and make use of it where applicable 2013-11-26 02:26:31 +01:00
initrd-fs.target core: replace OnFailureIsolate= setting by a more generic OnFailureJobMode= setting and make use of it where applicable 2013-11-26 02:26:31 +01:00
initrd-parse-etc.service.in initrd-parse-etc.service: ignore return code of daemon-reload 2014-09-03 13:28:31 +02:00
initrd-root-device.target Create initrd-root-device.target synchronization point (#3239) 2016-05-12 18:42:39 +02:00
initrd-root-fs.target core: replace OnFailureIsolate= setting by a more generic OnFailureJobMode= setting and make use of it where applicable 2013-11-26 02:26:31 +01:00
initrd-switch-root.service.in core: make sure initrd-switch-root command survives PID1's killing spree (#4730) 2016-11-24 18:52:04 +01:00
initrd-switch-root.target units: add Wants=initrd-cleanup.service to initrd-switch-root.target (#4345) 2016-10-11 14:36:14 +02:00
initrd-udevadm-cleanup-db.service.in Move udevadm to rootbindir 2013-03-11 07:18:33 +01:00
initrd.target Create initrd-root-device.target synchronization point (#3239) 2016-05-12 18:42:39 +02:00
kexec.target units: rename halt/hibernate/kexec/poweroff/reboot/suspend to systed-xxx 2012-06-25 14:28:50 +02:00
kmod-static-nodes.service.in kmod-static-nodes: don't run if module list is empty 2016-01-11 16:26:17 +01:00
ldconfig.service units: restore ConditionNeesUpdate=/etc in ldconfig.service (#3311) 2016-05-21 17:09:18 -04:00
local-fs-pre.target units: disallow manual starting of passive units 2013-03-26 15:15:39 +01:00
local-fs.target units: local-fs.target - don't pull in default dependencies 2014-06-29 16:20:33 +02:00
machine.slice logind: add infrastructure to keep track of machines, and move to slices 2013-06-20 03:49:59 +02:00
machines.target units: rework systemd-nspawn@.service unit 2014-12-29 17:00:05 +01:00
Makefile build-sys: add small redirecting Makefiles to simplify compilation from within emacs 2010-05-17 01:44:03 +02:00
multi-user.target units: drop [Install] section from multi-user.target and graphical.target 2014-01-17 20:27:35 +01:00
network-online.target units: order network-online.target after network.target 2014-06-11 15:00:45 +02:00
network-pre.target units: introduce network-pre.target as place to hook in firewalls 2014-06-11 12:14:55 +02:00
network.target units: introduce network-pre.target as place to hook in firewalls 2014-06-11 12:14:55 +02:00
nss-lookup.target units: disallow manual starting of passive units 2013-03-26 15:15:39 +01:00
nss-user-lookup.target units: disallow manual starting of passive units 2013-03-26 15:15:39 +01:00
org.freedesktop.hostname1.busname units: remove "AllowUser=root own", the bus owner can always own names 2014-03-08 19:38:06 +01:00
org.freedesktop.import1.busname import: introduce new mini-daemon systemd-importd, and make machinectl a client to it 2015-01-22 04:02:07 +01:00
org.freedesktop.locale1.busname units: remove "AllowUser=root own", the bus owner can always own names 2014-03-08 19:38:06 +01:00
org.freedesktop.login1.busname units: remove "AllowUser=root own", the bus owner can always own names 2014-03-08 19:38:06 +01:00
org.freedesktop.machine1.busname units: remove "AllowUser=root own", the bus owner can always own names 2014-03-08 19:38:06 +01:00
org.freedesktop.network1.busname units: networkd - fix busname to work on kdbus 2015-02-06 12:12:13 +01:00
org.freedesktop.resolve1.busname units: make resolved pull in its own .busname unit, but only on kdbus systems 2015-01-07 23:44:08 +01:00
org.freedesktop.systemd1.busname units: improve Description= for systemd's own busname unit 2015-01-07 23:44:08 +01:00
org.freedesktop.timedate1.busname units: remove "AllowUser=root own", the bus owner can always own names 2014-03-08 19:38:06 +01:00
paths.target units: introduce new timers.target and paths.target to hook timer/path units into for boot 2013-03-25 21:28:30 +01:00
poweroff.target units: restore job timeouts for poweroff and reboot 2014-11-06 08:17:45 -05:00
printer.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
proc-sys-fs-binfmt_misc.automount units: add reference to new wiki page to all api mount units 2013-01-15 18:14:13 +01:00
proc-sys-fs-binfmt_misc.mount units: add reference to new wiki page to all api mount units 2013-01-15 18:14:13 +01:00
quotaon.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
rc-local.service.in units: Add "GuessMainPID=no" to compatibility unit for rc-local (#3018) 2016-04-21 19:16:28 +02:00
reboot.target units: restore job timeouts for poweroff and reboot 2014-11-06 08:17:45 -05:00
remote-fs-pre.target units: disallow manual starting of passive units 2013-03-26 15:15:39 +01:00
remote-fs.target filesystem targets: disable default dependencies 2013-09-11 14:40:58 +02:00
rescue.service.in emergency.service: Don't say "Welcome" when it's an emergency (#3569) 2016-06-21 16:09:47 +02:00
rescue.target rescue: don't pull in sockets 2012-05-22 16:12:25 +02:00
rpcbind.target units: disallow manual starting of passive units 2013-03-26 15:15:39 +01:00
serial-getty@.service.m4 units/serial-getty@.service: use the default RestartSec 2014-07-15 23:51:10 -04:00
shutdown.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
sigpwr.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
sleep.target units: stop sleep.target when it has done its job 2012-06-25 12:01:09 +02:00
slices.target core: general cgroup rework 2013-06-27 04:17:34 +02:00
smartcard.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
sockets.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
sound.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
suspend.target unit: rename BindTo= to BindsTo= 2012-07-13 23:34:40 +02:00
swap.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
sys-fs-fuse-connections.mount units: disable /sys/fs/fuse/connections in private user namespaces (#4592) 2016-11-11 19:00:33 +01:00
sys-kernel-config.mount units: conditionalize configfs and debugfs with CAP_SYS_RAWIO 2014-07-04 03:24:42 +02:00
sys-kernel-debug.mount units: conditionalize configfs and debugfs with CAP_SYS_RAWIO 2014-07-04 03:24:42 +02:00
sysinit.target units: remove RefuseManualStart from units which are always around 2014-06-28 00:06:30 -04:00
syslog.socket service: ignore dependencies on $syslog and $local_fs in LSB scripts 2013-01-16 21:34:09 +01:00
system-update-cleanup.service.in units: add system-update-cleanup.service to guard against offline-update loops 2016-11-29 01:40:34 -05:00
system-update.target units: add system-update-cleanup.service to guard against offline-update loops 2016-11-29 01:40:34 -05:00
system.slice units: fix system.slice to require -.slice, instead of just want it 2015-11-11 16:04:16 +01:00
systemd-ask-password-console.path systemd-ask-password: make sure directory watch is started before cryptsetup (#3850) 2016-08-02 08:55:25 -04:00
systemd-ask-password-console.service.in units: run systemd-ask-password-console.service after systemd-vconsole-setup.service 2013-03-06 15:39:37 +01:00
systemd-ask-password-wall.path systemd-ask-password: make sure directory watch is started before cryptsetup (#3850) 2016-08-02 08:55:25 -04:00
systemd-ask-password-wall.service.in units: automatically respawn the core services 2012-06-28 12:18:04 +02:00
systemd-backlight@.service.in units: so far we defaulted to 90s as default timeout for most things, let's do so for our oneshot services too 2015-02-02 21:34:32 +01:00
systemd-binfmt.service.in units: specify timeouts for more oneshot services 2015-04-28 08:52:17 -04:00
systemd-coredump.socket coredump: rework coredumping logic 2016-02-10 16:08:32 +01:00
systemd-coredump@.service.in coredump: rework coredumping logic 2016-02-10 16:08:32 +01:00
systemd-exit.service.in containers: systemd exits with non-zero code 2015-09-21 17:32:45 +02:00
systemd-firstboot.service.in units: run firstboot before sysusers, so that firstboot can initialize the root password 2014-10-23 01:24:59 +02:00
systemd-fsck-root.service.in fsck: remove fsckd again, but keep the door open for external replacement 2015-04-28 17:30:00 +02:00
systemd-fsck@.service.in units: make sure that fsck is executed before quotacheck 2016-05-10 14:10:17 +02:00
systemd-halt.service.in man: document systemd-halt.service and friends 2012-06-26 17:50:29 +02:00
systemd-hibernate-resume@.service.in systemd-hibernate-resume@.service: remove unnecessary ordering 2014-10-09 23:53:15 -04:00
systemd-hibernate.service.in man: document systemd-suspend.service 2012-06-26 17:33:11 +02:00
systemd-hostnamed.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-hwdb-update.service.in Revert "hwdb: actually search /run/udev/hwdb.d" 2015-06-09 11:26:06 +02:00
systemd-hybrid-sleep.service.in logind: support for hybrid sleep (i.e. suspend+hibernate at the same time) 2012-10-28 00:50:35 +02:00
systemd-importd.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-initctl.service.in man: document systemd-initctl 2012-06-26 00:15:59 +02:00
systemd-initctl.socket initctl: move /dev/initctl fifo into /run, replace it by symlink 2014-06-04 16:53:58 +02:00
systemd-journal-catalog-update.service.in units: so far we defaulted to 90s as default timeout for most things, let's do so for our oneshot services too 2015-02-02 21:34:32 +01:00
systemd-journal-flush.service.in units: so far we defaulted to 90s as default timeout for most things, let's do so for our oneshot services too 2015-02-02 21:34:32 +01:00
systemd-journal-gatewayd.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-journal-gatewayd.socket journal-remote: add documents in the unit files 2015-12-15 10:51:12 +09:00
systemd-journal-remote.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-journal-remote.socket journal-remote: add units and read certs from default locations 2014-07-15 22:23:49 -04:00
systemd-journal-upload.service.in units: journal-upload Wants= and After=network-online.target (#4354) 2016-10-12 11:13:13 +02:00
systemd-journald-audit.socket units: conditionalize audit multicast socket on CAP_AUDIT_READ 2015-05-20 17:40:05 +02:00
systemd-journald-dev-log.socket journald: also increase the SendBuffer of /dev/log to 8M 2014-08-13 18:53:05 +02:00
systemd-journald.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-journald.socket journald: move /dev/log socket to /run 2014-06-04 16:53:58 +02:00
systemd-kexec.service.in man: document systemd-halt.service and friends 2012-06-26 17:50:29 +02:00
systemd-localed.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-logind.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-machine-id-commit.service.in machine-id-commit: merge machine-id-commit functionality into machine-id-setup 2015-09-29 21:55:51 +02:00
systemd-machined.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-modules-load.service.in units: specify timeouts for more oneshot services 2015-04-28 08:52:17 -04:00
systemd-networkd-wait-online.service.in units: networkd - don't order wait-online.service before network.target 2014-06-30 13:06:33 +02:00
systemd-networkd.service.m4.in networkd: allow networkd to start in early boot 2016-11-23 17:05:11 +01:00
systemd-networkd.socket networkd: route - track routes 2015-10-30 12:32:48 +01:00
systemd-nspawn@.service.in nspawn: set DevicesPolicy closed and clean up duplicated devices 2016-07-22 16:08:26 +02:00
systemd-poweroff.service.in man: document systemd-halt.service and friends 2012-06-26 17:50:29 +02:00
systemd-quotacheck.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-random-seed.service.in units: do not start load-random-seed in containers (#3941) 2016-08-13 17:15:19 +02:00
systemd-reboot.service.in man: document systemd-halt.service and friends 2012-06-26 17:50:29 +02:00
systemd-remount-fs.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-resolved.service.m4.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-rfkill.service.in rfkill: rework and make it listen on /dev/rfkill 2015-10-01 16:21:09 +02:00
systemd-rfkill.socket rfkill: rework and make it listen on /dev/rfkill 2015-10-01 16:21:09 +02:00
systemd-suspend.service.in man: document systemd-suspend.service 2012-06-26 17:33:11 +02:00
systemd-sysctl.service.in sysctl: run sysctl service if /proc/sys/net is writable (#4425) 2016-10-20 19:36:28 +02:00
systemd-sysusers.service.in units: specify timeouts for more oneshot services 2015-04-28 08:52:17 -04:00
systemd-timedated.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-timesyncd.service.in units: further lock down our long-running services 2016-09-25 10:52:57 +02:00
systemd-tmpfiles-clean.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-tmpfiles-clean.timer man: link systemd-tmpfiles-setup-dev.service 2013-04-23 12:55:44 +02:00
systemd-tmpfiles-setup-dev.service.in units: tmpfiles-setup-dev - allow unsafe file creation to happen in /dev at boot 2014-10-27 17:40:24 +01:00
systemd-tmpfiles-setup.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-udev-settle.service.in udev: replace CAP_MKNOD by writable /sys condition 2013-08-17 19:07:42 +02:00
systemd-udev-trigger.service.in units: move After=systemd-hwdb-update.service dependency from udev to udev-trigger 2015-04-03 14:27:16 +02:00
systemd-udevd-control.socket units: remove udev control socket when systemd stops the socket unit (#4039) 2016-08-26 00:07:58 +02:00
systemd-udevd-kernel.socket units: make ReceiveBuffer= line more readable by using M suffix 2014-11-03 21:51:28 +01:00
systemd-udevd.service.in units: systemd-udevd: add AF_INET and AF_INET6 to RestrictAddressFamilies= (#4296) 2016-10-06 15:40:53 +02:00
systemd-update-done.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-update-utmp-runlevel.service.in utmp: turn systemd-update-utmp-shutdown.service into a normal runtime service 2013-05-16 00:19:03 +02:00
systemd-update-utmp.service.in readahead: wipe out readahead 2014-09-25 16:39:18 +02:00
systemd-user-sessions.service.in units: order systemd-user-sessions.service after network.target 2016-04-22 16:17:00 +02:00
systemd-vconsole-setup.service.in vconsole: Don't do static installation under sysinit.target 2016-07-27 00:57:01 +02:00
time-sync.target units: time-sync.target probably makes sense, is not just sysv compat 2014-06-11 12:14:55 +02:00
timers.target unit: do not order timers.target before basic.target 2014-11-02 12:33:54 -05:00
tmp.mount.m4 units: add nosuid and nodev options to tmp.mount (#3575) 2016-06-22 12:32:59 +02:00
umount.target units: introduce new Documentation= field and make use of it everywhere 2012-05-21 15:14:51 +02:00
user.slice logind: add infrastructure to keep track of machines, and move to slices 2013-06-20 03:49:59 +02:00
user@.service.m4.in units: extend stop timeout for user@.service to 120s (#4426) 2016-10-20 17:45:27 +02:00
var-lib-machines.mount units: add missing unit file 2015-02-24 18:46:49 +01:00