Shutting down and rebooting

You rarely need to reboot a QNX Neutrino system. If a driver or other system process crashes, you can usually restart that one process.

Note: Don't simply turn off a running QNX Neutrino system, because processes might not shut down properly, and any data that's in a filesystem's cache might not get written to the disk.

To shut down or reboot the system, use the shutdown command. You can do this only if you're logged in as root. This utility has several options that let you:

Before the shutdown program shuts down the system, it sends a SIGTERM signal to any running processes, to give them the opportunity to terminate cleanly. For more information, see the Utilities Reference.