inskern(1)           INTERACTIVE UNIX System           inskern(1)



          NAME
               inskern - install a kernel

          SYNOPSIS
               inskern [ -r root_directory ] [ -gshutdown_grace_period ]
               kernel_file

          DESCRIPTION
               The inskern command installs a new kernel.  By default, the
               configuration directory is /etc/conf; this may be overridden
               by setting the environment variable $ROOT (see insdriver(1))
               or by using the -r option on the command line.  This root
               will be referred to as $ROOT throughout this manual entry.

               Installing a new kernel consists of linking the new kernel
               to /unix, shutting down the system, and booting the new ker-
               nel.

               The inskern command does the following.  It links, if possi-
               ble, and otherwise copies
               $ROOT/etc/conf/kconfig.d/kernel_file.d/kernel_file to
               /kernel_file, copies configuration files from /etc/conf/cf.d
               to /etc/conf/cf.d/OLD and from
               $ROOT/etc/conf/kconfig.d/kernel_file.d to /etc/conf/cf.d,
               echoes kernel_file to /etc/.new_unix, and executes
               /etc/shutdown.  /etc/shutdown moves the current kernel
               (/unix) to /OLD.unix and links /kernel_file to /unix.  Upon
               reboot, the default, /unix, will be the new kernel.  If the
               new kernel cannot be linked to /unix, /OLD.unix is moved
               back to /unix and the configuration files are moved back
               from /etc/conf/cf.d/OLD to /etc/conf/cf.d.

               Should the new kernel boot fail, reboot, and when the mes-
               sage:

                    Booting the UNIX System...

               is displayed, quickly press the space bar and type /OLD.unix
               when prompted for the name of the kernel.  After the system
               is up, move /OLD.unix to /unix, and move
               /etc/conf/cf.d/OLD/* to /etc/conf/cf.d.

          EXAMPLES
               The following command line reboots the system with
               /tmp/etc/conf/kconfig.d/unix.3.d/unix.3 as the new kernel:

                    inskern -r /tmp unix.3

               The following command reboots the system with
               /etc/conf/kconfig.d/unix.3.d/unix.3 as the new kernel:

                    inskern unix.3



          Rev. 1.2                                                   Page 1

          inskern(1)           INTERACTIVE UNIX System           inskern(1)



          FILES
               /etc/.new_unix

          SEE ALSO
               kconfig(1), shutdown(1M).
               insdriver(1) in the INTERACTIVE SDS Guide and Programmer's
               Reference Manual.

          WARNINGS
               The command inskern must be executed by the root user.

          ADDED VALUE
               This entry, supplied by INTERACTIVE Systems Corporation, is
               an extension of UNIX System V.









































          Rev. 1.2                                                   Page 2