Differential D3693 Diff 10038 head/sbin/reboot/reboot.8

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head/sbin/reboot/reboot.8

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	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF			.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.			.\" SUCH DAMAGE.
	.\"			.\"
	.\" @(#)reboot.8 8.1 (Berkeley) 6/9/93			.\" @(#)reboot.8 8.1 (Berkeley) 6/9/93
	.\" $FreeBSD$			.\" $FreeBSD$
	.\"			.\"
	.Dd October 11, 2010			.Dd May 22, 2015
	.Dt REBOOT 8			.Dt REBOOT 8
	.Os			.Os
	.Sh NAME			.Sh NAME
	.Nm reboot ,			.Nm reboot ,
	.Nm halt ,			.Nm halt ,
	.Nm fastboot ,			.Nm fastboot ,
	.Nm fasthalt			.Nm fasthalt
	.Nd stopping and restarting the system			.Nd stopping and restarting the system
	.Sh SYNOPSIS			.Sh SYNOPSIS
	.Nm halt			.Nm halt
	.Op Fl lnpq			.Op Fl lnpq
	.Op Fl k Ar kernel			.Op Fl k Ar kernel
	.Nm			.Nm
	.Op Fl dlnpq			.Op Fl dlnpqr
	.Op Fl k Ar kernel			.Op Fl k Ar kernel
	.Nm fasthalt			.Nm fasthalt
	.Op Fl lnpq			.Op Fl lnpq
	.Op Fl k Ar kernel			.Op Fl k Ar kernel
	.Nm fastboot			.Nm fastboot
	.Op Fl dlnpq			.Op Fl dlnpq
	.Op Fl k Ar kernel			.Op Fl k Ar kernel
	.Sh DESCRIPTION			.Sh DESCRIPTION
	▲ Show 20 Lines • Show All 52 Lines • ▼ Show 20 Lines
	.Nm			.Nm
	was called.			was called.
	.It Fl q			.It Fl q
	The system is halted or restarted quickly and ungracefully, and only			The system is halted or restarted quickly and ungracefully, and only
	the flushing of the file system cache is performed (if the			the flushing of the file system cache is performed (if the
	.Fl n			.Fl n
	option is not specified).			option is not specified).
	This option should probably not be used.			This option should probably not be used.
				.It Fl r
				The system kills all processes, unmounts all filesystems, mounts the new
				root filesystem, and begins the usual startup sequence.
				After changing vfs.root.mountfrom with
				.Xr kenv 8 ,
				.Nm Fl r
				can be used to change the root filesystem while preserving kernel state.
	.El			.El
	.Pp			.Pp
	The			The
	.Nm fasthalt			.Nm fasthalt
	and			and
	.Nm fastboot			.Nm fastboot
	utilities are nothing more than aliases for the			utilities are nothing more than aliases for the
	.Nm halt			.Nm halt
	and			and
	.Nm			.Nm
	utilities.			utilities.
	.Pp			.Pp
	Normally, the			Normally, the
	.Xr shutdown 8			.Xr shutdown 8
	utility is used when the system needs to be halted or restarted, giving			utility is used when the system needs to be halted or restarted, giving
	users advance warning of their impending doom and cleanly terminating			users advance warning of their impending doom and cleanly terminating
	specific programs.			specific programs.
				.Sh EXAMPLES
				Replace current root filesystem with UFS mounted from
				.Pa /dev/ada0s1a :
				.Bd -literal -offset indent
				kenv vfs.root.mountfrom=ufs:/dev/ada0s1a
				reboot -r
				.Ed
	.Sh SEE ALSO			.Sh SEE ALSO
	.Xr getutxent 3 ,			.Xr getutxent 3 ,
	.Xr boot 8 ,			.Xr boot 8 ,
	.Xr dumpon 8 ,			.Xr dumpon 8 ,
	.Xr nextboot 8 ,			.Xr nextboot 8 ,
	.Xr savecore 8 ,			.Xr savecore 8 ,
	.Xr shutdown 8 ,			.Xr shutdown 8 ,
	.Xr sync 8			.Xr sync 8
	.Sh HISTORY			.Sh HISTORY
	A			A
	.Nm			.Nm
	utility appeared in			utility appeared in
	.At v6 .			.At v6 .