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28 .\" @(#)reboot.8 8.1 (Berkeley) 6/9/93
29 .\" $FreeBSD: src/sbin/reboot/reboot.8,v 1.10.2.7 2003/02/23 22:42:10 trhodes Exp $
39 .Nd stopping and restarting the system
54 utilities flush the file system cache to disk, send all running processes
59 and, respectively, halt or restart the system.
60 The action is logged, including entering a shutdown record into the
64 The options are as follows:
65 .Bl -tag -width indent
67 The system is requested to create a crash dump.
69 supported only when rebooting, and it has no effect unless a dump
70 device has previously been specified with
75 logged to the system log.
76 This option is intended for applications such as
82 and log this themselves.
84 The file system cache is not flushed.
85 This option should probably not be used.
87 The system will turn off the power if it can.
88 If the power down action fails, the system
89 will halt or reboot normally, depending on whether
95 The system is halted or restarted quickly and ungracefully, and only
96 the flushing of the file system cache is performed (if the
99 This option should probably not be used.
106 utilities are nothing more than aliases for the
114 utility is used when the system needs to be halted or restarted, giving
115 users advance warning of their impending doom and cleanly terminating