buildsys(1M)      MISC. REFERENCE MANUAL PAGES       buildsys(1M)



NAME
     buildsys - operating system configuration script

SYNOPSIS
     /sbin/buildsys [-s]

DESCRIPTION
     The buildsys shell script performs the activities  necessary
     to  build  a  new bootable operating system from single user
     mode.  buildsys is executed by the shell script rc6 or  dur-
     ing a powerup if the configuration of a new bootable operat-
     ing system is  necessary.   The  bootable  operating  system
     resides  in  /stand,  and  is generally referred to as unix.
     Building a new  operating  system  is  usually  required  by
     hardware  and  system  software changes made to your system.
     These changes must be incorporated into the bootable operat-
     ing  system so that it has complete and correct knowledge of
     the system configuration.  buildsys is not  intended  to  be
     executed at the user level.  buildsys performs the following
     activities:

          ⊕ checks  and  mounts  the  file  systems   listed   in
            /etc/boottab  (it  also  looks  at /etc/vfstab to do
            this)

          ⊕ runs cunix to create a new unix

          ⊕ unmounts all file systems previously mounted

          ⊕ optionally reboots the system;  a reboot is requested
            if  buildsys  was  run during a powerup (i.e., the -s
            option was specified);  if it was run by rc6  (no  -s
            option), then control is returned to rc6
     If an error occurs during the configuration of a  new  unix,
     buildsys  exits to a shell;  this gives the user a chance to
     fix any problems that might have  caused  the  configuration
     process to fail, or to copy a version of unix to /stand/unix
     that is known to work in order to reboot the system.   Exit-
     ing  this  shell (using ctrl-d or exit), puts the machine in
     firmware mode.   The  machine  can  then  be  rebooted  from
     firmware.

SEE ALSO
     cunix(1M), init(1M), rc6(1M), shutdown(1M), vfstab(4).
     System Administrator's Guide










                Last change: Essential Utilities                1