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reboot(8)                                                            reboot(8)



NAME
       reboot, halt, poweroff - reboot or stop the system

SYNOPSIS
       reboot [OPTION]...

       halt [OPTION]...

       poweroff [OPTION]...

DESCRIPTION
       These programs allow a system administrator to reboot, halt or poweroff the system.

       When  called  with  --force  or when in runlevel 0 or 6, this tool invokes the reboot(2) system call itself and
       directly reboots the system.  Otherwise this simply invokes the shutdown(8) tool  with  the  appropriate  argu-
       ments.

       Before invoking reboot(2), a shutdown time record is first written to /var/log/wtmp

OPTIONS
       -f, --force
              Does not invoke shutdown(8) and instead performs the actual action you would expect from the name.

       -p, --poweroff
              Instructs the halt command to instead behave as poweroff.

       -w, --wtmp-only
              Does  not  call  shutdown(8) or the reboot(2) system call and instead only writes the shutdown record to
              /var/log/wtmp

       --verbose
              Outputs slightly more verbose messages when rebooting, useful for debugging problems with shutdown.

ENVIRONMENT
       RUNLEVEL
              reboot will read the current runlevel from this environment variable if set  in  preference  to  reading
              from /var/run/utmp

FILES
       /var/run/utmp
              Where  the  current  runlevel will be read from; this file will also be updated with the runlevel record
              being replaced by a shutdown time record.

       /var/log/wtmp
              A new runlevel record for the shutdown time will be appended to this file.

AUTHOR
       Written by Scott James Remnant <scottATnetsplit.com>

REPORTING BUGS
       Report bugs at <https://launchpad.net/upstart/+bugs>

COPYRIGHT
       Copyright (C) 2009 Canonical Ltd.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABIL-
       ITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO
       shutdown(8) telinit(8) runlevel(8)



Upstart                           2009-07-09                         reboot(8)