How do I change the runlevel?
systemd has the concept of targets which is a more flexible replacement for runlevels in sysvinit.
Run level 3 is emulated by multi-user.target. Run level 5 is emulated by graphical.target. runlevel3.target is a symbolic link to multi-user.target and runlevel5.target is a symbolic link to graphical.target.
You can switch to ‘runlevel 3’ by running
- systemctl isolate multi-user.target (or) systemctl isolate runlevel3.target
You can switch to ‘runlevel 5’ by running
- systemctl isolate graphical.target (or) systemctl isolate runlevel5.target
How do I change the default runlevel?
systemd uses symlinks to point to the default runlevel. You have to delete the existing symlink first before creating a new one
Switch to runlevel 3 by default
ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
Switch to runlevel 5 by default
ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target
systemd does not use /etc/inittab file.
How do I know the current run level?
runlevel command still works with systemd. You can continue using that however runlevels is a legacy concept in systemd and is emulated via ‘targets’ and multiple targets can be active at the same time. So the equivalent in systemd terms is
systemctl list-units --type=target
How to power off the machine ?
You can use
Some more possibilities are:
shutdown -P now
halt used to work the same as
poweroff in previous Fedora releases, but systemd distinguishes between the two, so
halt without parameters now does exactly what it says – it merely stops the system without turning it off.