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reboot


NAME
     reboot - restart the operating system

SYNOPSIS
     /usr/sbin/reboot [-dlnq] [boot_arguments]

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

     Although reboot can be run by the super-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.

     The reboot utility performs  a  sync(1M)  operation  on  the
     disks,  and  then  a  multi-user  reboot  is  initiated. See
     init(1M) for details. On x86 systems, reboot may also update
     the boot archive as needed to ensure a successful reboot.

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

     Normally, the system reboots itself  at  power-up  or  after
     crashes.

OPTIONS
     The following options are supported:

     -d              Force a system crash dump before  rebooting.
                     See dumpadm(1M) for information on configur-
                     ing system crash dumps.



     -l              Suppress sending a message to the system log
                     daemon,   syslogd(1M)   about  who  executed
                     reboot.



     -n              Avoid calling sync(2) and  do  not  log  the
                     reboot  to syslogd(1M) or to /var/adm/wtmpx.
                     The kernel still attempts to  sync  filesys-
                     tems  prior  to  reboot,  except  if  the -d
                     option is also present. If -d is  used  with
                     -n,  the  kernel  does  not  attempt to sync
                     filesystems.

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



OPERANDS
     The following operands are supported:

     boot_arguments  An optional boot_arguments  specifies  argu-
                     ments  to  the  uadmin(2)  function that are
                     passed to the boot program and  kernel  upon
                     restart.  The  form and list of arguments is
                     described in the boot(1M) and kernel(1M) man
                     pages.. If the arguments are specified, whi-
                     tespace between them is replaced  by  single
                     spaces  unless  the whitespace is quoted for
                     the shell. If the boot_arguments begin  with
                     a  hyphen,  they  must be preceded by the --
                     delimiter (two hyphens) to denote the end of
                     the reboot argument list.



EXAMPLES
     Example 1: Passing the -r and -v Arguments to boot

     In the following example, the  delimiter  --  (two  hyphens)
     must  be  used  to  separate  the options of reboot from the
     arguments of boot(1M).

     example# reboot -dl -- -rv

     Example 2: Rebooting Using a Specific Disk and Kernel

     The following example reboots using a specific disk and ker-
     nel.

     example# reboot disk1 kernel.test/unix

FILES
     /var/adm/wtmpx          login accounting file



ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:




     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|


SEE ALSO
     mdb(1), boot(1M), dumpadm(1M), fsck(1M), halt(1M), init(1M),
     kernel(1M),  shutdown(1M),  sync(1M),  syslogd(1M), sync(2),
     uadmin(2), reboot(3C), attributes(5)

NOTES
     The  reboot  utility  does  not  execute  the   scripts   in
     /etc/rcnum.d  or execute shutdown actions in inittab(4).  To
     ensure  a  complete  shutdown  of   system   services,   use
     shutdown(1M) or init(1M) to reboot a Solaris system.










Man pages from Solaris 10 Update 8. See docs.sun.com and www.oracle.com for further documentation and Solaris information.
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