Created attachment 664428 [details]
systemd-udev-root-symlink log

Hello!

Have multiple 'Cannot add dependency job for unit
systemd-udev-root-symlink.service' in log.

=====
k_mikhail@linux-mk500:~> systemctl --version 
systemd 210
+PAM -LIBWRAP +AUDIT +SELINUX -IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ
+SECCOMP +APPARMOR
=====

=====
k_mikhail@linux-mk500:~> systemctl cat systemd-udev-root-symlink.service
# /usr/lib/systemd/system/systemd-udev-root-symlink.service
[Unit]
Description=Rule generator for /dev/root symlink
Before=systemd-udevd.service
DefaultDependencies=no
ConditionPathIsReadWrite=/run/udev

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=@udevlibexec@/rootsymlink-generator
=====


Log messages:
=====
k_mikhail@linux-mk500:~> journalctl --system -u
systemd-udev-root-symlink.service
-- Logs begin at ������ 2015-12-31 22:33:42 EET, end at ������ 2016-02-03 18:15:04
EET. --
������ 29 13:34:49 linux-mk500 systemd[1]:
[/usr/lib/systemd/system/systemd-udev-root-symlink.service:10] Executable path
is not absolute, ignoring: udevlibexec@/rootsymlink-generator
������ 29 13:34:49 linux-mk500 systemd[1]: systemd-udev-root-symlink.service lacks
ExecStart setting. Refusing.
������ 29 13:34:53 linux-mk500 systemd[1]:
[/usr/lib/systemd/system/systemd-udev-root-symlink.service:10] Executable path
is not absolute, ignoring: udevlibexec@/rootsymlink-generator
������ 29 13:34:53 linux-mk500 systemd[1]: systemd-udev-root-symlink.service lacks
ExecStart setting. Refusing.
������ 29 13:45:04 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 29 14:15:02 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 29 14:30:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 29 14:45:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
-- Reboot --
������ 30 18:46:31 linux-mk500 systemd[1]:
[/usr/lib/systemd/system/systemd-udev-root-symlink.service:10] Executable path
is not absolute, ignoring: udevlibexec@/rootsymlink-generator
������ 30 18:46:31 linux-mk500 systemd[1]: systemd-udev-root-symlink.service lacks
ExecStart setting. Refusing.
������ 30 18:46:32 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:46:39 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Invalid argument
������ 30 18:47:06 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:47:09 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:47:11 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:47:22 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:48:02 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:48:46 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:48:52 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 18:53:34 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 19:00:03 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 19:48:09 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 20:00:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 20:15:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 20:30:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 20:45:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:00:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
-- Reboot --
������ 30 21:09:15 linux-mk500 systemd[1]:
[/usr/lib/systemd/system/systemd-udev-root-symlink.service:10] Executable path
is not absolute, ignoring: udevlibexec@/rootsymlink-generator
������ 30 21:09:15 linux-mk500 systemd[1]: systemd-udev-root-symlink.service lacks
ExecStart setting. Refusing.
������ 30 21:09:15 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:09:22 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Invalid argument
������ 30 21:09:48 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:09:51 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:09:52 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:10:07 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:11:14 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:11:59 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:12:04 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:15:02 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:16:46 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:30:02 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 21:45:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 22:00:02 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 22:15:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
������ 30 22:30:01 linux-mk500 systemd[1]: Cannot add dependency job for unit
systemd-udev-root-symlink.service, ignoring: Unit
systemd-udev-root-symlink.service failed to load: Invalid argumen
=====

=====
k_mikhail@linux-mk500:~> systemctl status -l systemd-udev-root-symlink.service
systemd-udev-root-symlink.service - Rule generator for /dev/root symlink
   Loaded: error (Reason: Invalid argument)
   Active: inactive (dead)
=====

Please, help to investigate the reason of this bug (?).