reboot(3-BSD)     MISC. REFERENCE MANUAL PAGES      reboot(3-BSD)



NAME
     reboot - reboot system or halt processor

SYNOPSIS
     cc [ flag... ] file ... -lucb
     #include <sys/reboot.h>
     reboot(howto, [ bootargs ] )
     int howto;
     char *bootargs;

DESCRIPTION
     reboot reboots the system, and is invoked  automatically  in
     the event of unrecoverable system failures.  howto is a mask
     of options passed to the bootstrap program.  The system call
     interface  permits  only RBHALT or RBAUTOBOOT to be passed
     to the reboot program; the other flags are used  in  scripts
     stored  on  the  console  storage  media,  or used in manual
     bootstrap procedures.   When  none  of  these  options  (for
     instance  RBAUTOBOOT) is given, the system is rebooted from
     file /stand/unix.  An automatic  consistency  check  of  the
     disks  is  then  normally performed.  The bits of howto that
     are used are:

     RBHALT        the processor is  simply  halted;  no  reboot
                    takes  place.   RBHALT  should  be used with
                    caution.

     RBASKNAME     Interpreted by the bootstrap program  itself,
                    causing  it to inquire as to what file should
                    be booted.  Normally, the  system  is  booted
                    from the file /stand/unix without asking.

RETURN VALUE
     If successful, this call never returns.  Otherwise, a -1  is
     returned  and  an  error  is returned in the global variable
     errno.

ERRORS
     EPERM          The caller is not the super-user.

FILES
     /vmunix

SEE ALSO
     halt(1M) init(1M) reboot(1M)  intro(1M),  crash(1M)  in  the
     System Administrator's Reference Manual.

NOTES
     Any other howto argument causes /stand/unix to  boot.   Only
     the super-user may reboot a machine.





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