User:Johannbg/QA/Systemd/compatability

This is a document to help keeping tab on which services have been ported to systemd native files...

Services

Package name	SysV file	Native Systemd	Ported	Notes
ls -al /etc/rc.d/init.d	systemctl --all --type=service	Used to list the services that can be started or stopped
chkconfig frobozz	sytemctl is-enabled frobozz.service	Used to check whether a service is configured to start or not in the current environment.
chkconfig frobozz --list		Used to list what levels this service is configured on or off
chkconfig frobozz --level 345 on	systemctl enable frobozz.service OR ln -s ../frobozz.service /lib/systemd/system/runlevel3.target.wants/ to configure runlevels manually	Turn the service on for the next reboot
chkconfig frobozz --level 345 off	systemctl disable frobozz.service OR rm /lib/systemd/system/runlevel3.target.wants/frobozz.service to configure runlevels manually	Turn the service off for the next reboot
service frobozz start	systemctl start frobozz.service OR service frobozz start	Used to start a service (not reboot persistent)
service frobozz stop	systemctl stop frobozz.service OR service frobozz stop	Used to stop a service (not reboot persistent)
service frobozz restart	systemctl restart frobozz.service OR service frobozz restart	Used to stop and then start a service
service frobozz reload	systemctl reload frobozz.service OR service frobozz reload	When supported, reloads the config file without interrupting pending operations.
service frobozz condrestart	systemctl reload-or-restart frobozz.service OR systemctl condrestart frobozz.service OR service frobozz condrestart	When supported, restarts if the service is already running.

Additional commands
In SysVinit, services can define arbitrary commands. Examples would be service iptables panic, or service httpd graceful. Native systemd services do not have this ability.

Any service that defines an additional command in this way would need to define some other, service-specific, way to accomplish this task when writing a native systemd service definition.

Check the package-specific release notes for any services that may have done this.

Runlevels

runlevels are used with telinit and on the kernel command line in SystemVinit. These traditional ways of switching runlevels still work with systemd, but additionally, the following can be used instead.

SystemVinit Runlevel	Systemd Target	Notes
0	runlevel0.target, poweroff.target	Halt the system.
1, s, single	runlevel1.target, rescue.target	Single user mode.
2, 4	runlevel2.target, runlevel4.target, multi-user.target	User-defined/Site-specific runlevels. By default, identical to 3.
3	runlevel3.target, multi-user.target	Multi-user, non-graphical. Users can usually login via multiple consoles or via the network.
5	runlevel5.target, graphical.target	Multi-user, graphical. Usually has all the services of runlevel 3 plus a graphical login.
6	runlevel6.target, reboot.target	Reboot
emergency	emergency.target	Emergency shell

Changing runlevels:

SystemVinit Command	Systemd Command	Notes
telinit 3	systemctl isolate runlevel3.target OR telinit 3	Change to multi-user run level.
sed s/^id:.*:initdefault:/id:3:initdefault:/	ln -sf /lib/systemd/systemd/multi-user.target /etc/systemd/system/default.target	Set to use multi-user runlevel on next reboot.

aiccu certmaster cherokee cluster-glue cobbler conman conmux ctrlproxy cyphesis dircproxy distcc-server dkms edac-utils freenx-server func ganglia-gmetad ganglia-gmond glusterfs-server gpsd heartbeat ircd-ratbox ldirectord ldirectord ltsp-server maradns mysql-mmm-agent mysql-mmm-monitor |openwsman-server |- |powerman |- |ratbox-services |- |rinputd |- |rtpproxy |- |sblim-gather |- |sems |- |snake-server |- |sqlgrey |- |sslogger-slogd |- |svxlink-server |- |syslog-ng |- |tomcat5 |- |tomcat6 |- |vhostmd |- |wifiroamd |- |zabbix-agent |- |zabbix-proxy |- |zabbix-server |- |}

rpmfusion

mythtv-backend ( rpmfusion ) open-vm-tools ( rpmfusion ) slmodem ( rpmfusion )