reboot(1M)              (BSD Compatibility Package)              reboot(1M)


   NAME
         reboot - restart the operating system

   SYNOPSIS
         /usr/ucb/reboot [ -dnq ] [ boot arguments ]

   DESCRIPTION
         reboot restarts the kernel.  The kernel is loaded into memory by the
         PROM monitor, which transfers control to it.

         Although reboot can be run by the privileged user at any time,
         shutdown(1M) is normally used first to warn all users logged in of
         the impending loss of service.  See shutdown(1M) for details.

         reboot performs a sync(1) operation on the disks, and then a
         multiuser reboot is initiated.  See init(1M) for details.

         reboot normally logs the reboot to the system log daemon,
         syslogd(1M), and places a shutdown record in the login accounting
         file /var/adm/wtmp.  These actions are inhibited if the -n or -q
         options are present.

         The following options are available:

         -d    Dump system core before rebooting.  This option is provided for
               compatibility, but is not supported by the underlying reboot(3)
               call.

         -n    Avoid the sync(1).  It can be used if a disk or the processor
               is on fire.

         -q    Quick.  Reboots quickly and ungracefully, without first
               shutting down running processes.

         boot arguments
               These arguments are accepted for compatibility, but are ignored
               by reboot.  See boot(1M) for details.

      Power Fail and Crash Recovery
         Normally, the system will reboot itself at power-up or after crashes.

   FILES
         /var/adm/wtmp       login accounting file

   SEE ALSO
         halt(1M), syslogd(1M), reboot(3).

         boot(8), crash(1M), fsck(1M), init(1M), shutdown(1M), sync(1M), in
         the System Administrator's Reference Manual.




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