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 during a powerup if the configuration of a new bootable operating 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 operating 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/boot_tab  (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