NAME

regen − regenerate (uxgen) an updated HP-UX system

SYNOPSIS

regen [−A] [−B] [−C] [−D] [−E] [−F] [−G] [−I] [−K] [−M] [−O] [−P] [−S] [−W] [−X] [−ZBSDIPC-SOCKET] [−ZNETIPC] [−ZNETINET] [−ZNET] [−ZLAN] [−ZAPPLTALK] [−c] [−i] [−l] [−p]

DESCRIPTION

regen is a utility used during the update(1M) process to aid the user in generating a new Series 800 HP-UX kernel. 

Only the super-user can execute regen.

By default regen is interactive.  If interactive, the user is asked if the configuration file /etc/conf/gen/S800 matches the system’s I/O configuration and options.  If it does not, regen proceeds to create a configuration file which does match the system. 

Unless the −p option is used, regen changes the configuration file according to the options specified on the command line and in the file /etc/conf/gen/.regenrc.  When the customize scripts are run during an update, each product that affects the kernel drops a flag into the .regenrc file.  This flag tells regen to include that product’s functionality in the configuration file.  If a product’s flag is not included in .regenrc or on the command line, its functionality is commented out of the configuration file, if present In that case regen assumes the product’s libraries have not been updated and whatever is in /etc/conf/lib may be incompatable with the core libraries.  If the running kernel is not /hp-ux, /hp-ux does not exist, or if /hp-ux is unreadable, regen may have to ask the user for information about the system.  For example, regen may ask what type of root disk or console your system has. 

After regen has modified the configuration file, it calls uxgen(1M) to build a kernel using /etc/conf/gen/S800 as input.  If the uxgen succeeds, regen saves the old kernel in /SYSBCKUP, and moves the new one from /etc/conf/S800/hp-ux to /hp-ux.  If the −i option is used, regen finally does an insf(1M) and copies an /etc/newconfig/inittab into /etc/inittab. 

Options

−A Absolutely no interaction is allowed.  Regen exits with a status of 1 if it cannot create a kernel without asking the user questions. 

−B The BX25 product has been loaded.  Include the BX25 subsystem. 

−C The X25 product has been loaded.  Include the X25 subsystem. 

−D Reserved. 

−E The X25-IP product is to be activated.  Include the X25 subsystem with the X25-IP fileset (this flag must be specified with −C). 

−F The NFS product has been loaded.  Include the NFS subsystem. 

−G The G2 product has been loaded.  Include the G2 subsystem. 

−I Non-interactive mode.  The file /etc/conf/gen/S800 is modified according to the options specified at the command line and in the .regenrc file.  No questions are asked. 

−K The Datakit product has been loaded.  Include the Datakit subsystem. 

−M The Mirror Disk product has been loaded.  Include the Mirrored Disk subsystem. 

−O The OSI Link product has been loaded.  Include the OSI Link subsystem. 

−P The SWITCHOVER product has been loaded. 

−S The Fairshare Scheduler product has been loaded.  Include the Fairshare Scheduler subsystem. 

−W Reserved. 

−X The XT product has been loaded.  Include the XT subsystem. 

−ZBSDIPC-SOCKET The UNIX Domain sockets fileset has been loaded.  Include the BSDIPC-SOCKET fileset (∗). 

−ZNETIPC The NetIPC fileset has been loaded.  Include the NETIPC fileset (∗). 

−ZNETINET The NETINET fileset has been loaded.  Include the NETINET fileset (∗). 

−ZNET The NET fileset has been loaded.  Include the NET fileset (∗). 

−ZLAN The LAN fileset has been loaded.  Include the LAN fileset (∗). 

−ZAPPLTALK The APPLTALK fileset has been loaded.  Include the APPLTALK fileset (∗). 

−c If the user claims the file /etc/conf/gen/S800 matches the I/O configuration of his system, check that the console, root, swap, dumps, and args devices match the running kernel’s.  If they do not, regen exits with a status of 1. 

−i Install mode.  An S800 file is always created. 

−l Reserved. 

−p Plain mode.  If the user claims the file /etc/conf/gen/S800 matches the system I/O configuration, the file is used exactly as is.  regen does not modify it according to the options specified on the command line or in the .regenrc file. 

(∗) Supported only in specific combinations.  Please see "Installing and Administering LAN/9000 and other networking manuals to determine supported combinations. 

DIAGNOSTICS

Exit status is 0 if regen executes successfully and the new kernel is in place.  Exit status is 2 if the user quits regen prematurely.  If any part of regen fails, exit status is 1. 

DEPENDENCIES

regen is not implemented on Series 700. 

AUTHOR

regen was developed by HP. 

FILES

/etc/conf/gen/.regenrc
/etc/master
/etc/newconfig/inittab.ite
/etc/newconfig/inittab.mux
/etc/inittab

SEE ALSO

uxgen(1M), insf(1M), lssf(1M), mksf(1M), shutdown(1M). 

Hewlett-Packard Company  —  HP-UX Release 9.10: April 1995