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reboot(2)							     reboot(2)

NAME
       reboot - boot the system

SYNOPSIS
DESCRIPTION
       causes  the  system  to reboot.	howto is a mask of reboot options (see
       specified as follows:

	      A file system sync is performed (unless
				  is set) and the processor is	rebooted  from
				  the default device and file.

	      The processor is simply halted.
				  A  sync  of  the  file  system  is performed
				  unless the flag is set.  should be used with
				  caution.

	      On  systems  with cellular architecture, all cells in the parti‐
	      tion are
				  rebooted in order to reconfigure the	stable
				  complex configuration data.  On systems with
				  non-cellular architecture, the default is  A
				  sync	of the file system is performed unless
				  the flag is set.

	      Shut down the system firmware to a "ready to reconfigure"	 state
	      and do not
				  reboot.   This  option  can  be used only in
				  combination with

	      A sync of the file system is not performed.

       Unless the flag has been specified, reboot(2) unmounts all mounted file
       systems	and  marks  them clean so that it will not be necessary to run
       fsck(1M) on these file systems when the system reboots.

       Only users with appropriate privileges can reboot a machine.

RETURN VALUE
       If successful, this call never returns.	Otherwise, a  −1  is  returned
       and is set to indicate the error.

ERRORS
       fails if this condition is encountered:

	      [EPERM]		  The effective user ID of the caller is not a
				  user with appropriate privileges.

DEPENDENCIES
       The default file and device for is on the current root device.

AUTHOR
       was developed by HP and the University of California, Berkeley.

SEE ALSO
       reboot(1M), privileges(5).

								     reboot(2)

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