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Systemd is the default and only init system since openSUSE 12.3
The complete openSUSE systemd documentation can be found here
Services not starting as expected
Even though chkconfig cron shows that cron should be enabled, it seems not to be started after boot. systemctl start cron.service starts it just fine. See Bug #660493.
systemctl enable cron.service helps here.
Loop mounts not working without manually loading the "loop" module
See Bug #661715. With SysV init, the loop module was unconditionally loaded by /etc/init.d/boot.localfs which is not used anymore. If you want to autoload it anyway, do
echo loop > /etc/modules-load.d/loop.conf
Getting debug from systemd
To get debug from systemd, you can either :
- remove quiet from kernel command line
- increase systemd verbosity by adding debug to kernel command line. You can also add systemd.sysv_console=1 (0: disabled, 1: enabled) to display legacy SysV initscripts output on console.
- modify /etc/systemd/system.conf (check man systemd.conf) to increase verbosity like this :
LogLevel=debug LogTarget=syslog-or-kmsg SysVConsole=yes
serial console isn't working
By default, systemd starts a minimal set of getty to let the system accessible.
When specifying on kernel command line which serial console should be used, only the last one in the list (which define the "active" console), will get a getty started :
- console=tty0 console=ttyS0 will start a console on both tty0 (ie physical console) and serial console
- console=ttyS0 console=tty0 will only start a console on tty0
To force starting console on serial port, use :
ln -s /usr/lib/systemd/system/serial-getty@.service /etc/systemd/system/getty.target.wants/serial-getty@ttyS0.service