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Reboot an instance
You can soft or hard reboot a running instance. A soft reboot attempts a graceful shut down and restart of the instance. A hard reboot power cycles the instance.
To reboot a server, use the openstack server reboot
command:
$ openstack server reboot SERVER
By default, when you reboot an instance it is a soft reboot. To
perform a hard reboot, pass the --hard
parameter as
follows:
$ openstack server reboot --hard SERVER
It is also possible to reboot a running instance into rescue mode.
For example, this operation may be required if a filesystem of an
instance becomes corrupted with prolonged use. See rescue
for more details.