The systemctl reboot and systemctl poweroff commands reboot and power down a system, respectively.
The systemctl isolate command switches to a new target at runtime.target-name.target
The systemctl get-default and systemctl set-default commands can query and set the default target.
You can use the rd.break option on the kernel command line to interrupt the boot process before control is handed over from the initramfs image.
The root file system is mounted read-only under /sysroot.
The emergency target can diagnose and fix file-system issues.
Click CREATE to build all of the virtual machines needed for the classroom lab environment. This may take several minutes to complete. Once created the environment can then be stopped and restarted to pause your experience.
If you DELETE your lab, you will remove all of the virtual machines in your classroom and lose all of your progress.