76 lines
2.4 KiB
Groff
76 lines
2.4 KiB
Groff
.\" Copyright (c) 2007-2015 The OpenRC Authors.
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.\" See the Authors file at the top-level directory of this distribution and
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.\" https://github.com/OpenRC/openrc/blob/master/AUTHORS
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.\"
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.\" This file is part of OpenRC. It is subject to the license terms in
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.\" the LICENSE file found in the top-level directory of this
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.\" distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
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.\" This file may not be copied, modified, propagated, or distributed
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.\" except according to the terms contained in the LICENSE file.
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.\"
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.Dd May 2, 2009
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.Dt OPENRC 8 SMM
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.Os OpenRC
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.Sh NAME
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.Nm openrc
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.Nd stops and starts services for the specified runlevel
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.Sh SYNOPSIS
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.Nm
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.Op Fl n , -no-stop
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.Op Fl o , -override
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.Op Ar runlevel
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.Sh DESCRIPTION
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.Nm
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first stops any services that are not in the specified runlevel unless
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--no-stop is specified, then starts any services in the runlevel and
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stacked runlevels added by
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.Nm rc-update
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that are not currently started.
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If no runlevel is specified, we use the current runlevel.
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.Pp
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There are some special runlevels that you should be aware of:
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.Bl -tag -width "shutdown"
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.It Ar sysinit
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Brings up any system specific stuff such as
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.Pa /dev ,
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.Pa /proc
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and optionally
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.Pa /sys
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for Linux based systems. It also mounts
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.Pa /lib/rc/init.d
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as a ramdisk using tmpfs where available unless / is mounted rw at boot.
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.Nm
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uses
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.Pa /lib/rc/init.d
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to hold state information about the services it runs.
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sysinit always runs when the host first starts should not be run again.
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.It Ar boot
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Generally the only services you should add to the boot runlevel are those
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which deal with the mounting of filesystems, set the initial state of attached
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peripherals and logging.
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Hotplugged services are added to the boot runlevel by the system.
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All services in the boot and sysinit runlevels are automatically included
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in all other runlevels except for those listed here.
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.It Ar single
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Stops all services except for those in the sysinit runlevel.
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.It Ar reboot
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Changes to the shutdown runlevel and then reboots the host.
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.It Ar shutdown
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Changes to the shutdown runlevel and then halts the host.
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.El
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.Pp
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You should not call any of these runlevels yourself.
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Instead you should use
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.Xr init 8
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and
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.Xr shutdown 8
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and let them call these special runlevels.
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.Sh SEE ALSO
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.Xr openrc-run 8 ,
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.Xr rc-status 8 ,
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.Xr rc-update 8 ,
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.Xr init 8 ,
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.Xr shutdown 8
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.Sh AUTHORS
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.An Roy Marples Aq roy@marples.name
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