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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 $
31 .Dd September 29, 2016
39 .Nd stopping and restarting the system
58 utilities flush the file system cache to disk, send all running processes
63 and, respectively, halt or restart the system.
64 The action is logged, including entering a shutdown record into the
68 The options are as follows:
69 .Bl -tag -width indent
71 The system is requested to create a crash dump.
73 supported only when rebooting, and it has no effect unless a dump
74 device has previously been specified with
79 on the next system boot.
80 If the kernel boots successfully, the
82 kernel will be booted on successive boots, this is a one-shot option.
83 If the boot fails, the system will continue attempting to boot
85 until the boot process is interrupted and a valid kernel booted.
86 This may change in the future.
90 logged to the system log.
91 This option is intended for applications such as
97 and log this themselves.
99 The file system cache is not flushed.
100 This option should probably not be used.
102 The system is halted or restarted quickly and ungracefully, and only
103 the flushing of the file system cache is performed (if the
106 This option should probably not be used.
108 The system will turn off the power
110 This is of course likely to make
120 utilities are nothing more than aliases for the
128 utility is used when the system needs to be halted or restarted, giving
129 users advance warning of their impending doom and cleanly terminating