Intel EK-KZPCM-UG manual Addition of New Hardware After Kzpcm Installation, Bus Re-numbering

Chapter 6. DIGITAL UNIX Installation

6.2.2 Addition of New Hardware After KZPCM Installation

If a new kernel configuration file is created after the installation of

the ITPSA driver, ITPSA entries will need to be re-added in order for the ITPSA driver to get compiled into the new kernel.

This will be the case if the ‘sizer –n’ command is used, or if the ‘doconfig’ command is used without any arguments (for example when adding new hardware to the system).

To add ITPSA entries to a kernel configuration file, execute the script

#/usr/opt/ITPSA100/conf/itconfig.sh <SYSCFGFILE>

(where <SYSCFGFILE> is the name of the kernel configuration file to modify).

The script will retrieve the values entered during the initial installation of the ITPSA driver for number of adapter and Ethernet entries to add.

To change the number of adapter or Ethernet entries to add, edit the file:

#/usr/opt/ITPSA100/data/itconfig.dat

The formatting of this file is strict. Be sure to only change the number of adapters or Ethernet entries and nothing else. Also be sure that no spaces exist between the NADAPTERS or NETHERNETS keywords and the values (i.e. it should be "NADAPTERS=4", and not "NADAPTERS = 4", etc).

NOTE

In some cases it might be necessary to review Subsection 6.2.3 to ensure that the SCSI bus is re-numbered properly.

6.2.3 Bus Re-numbering

The process of booting genvmunix to scan for hardware will identify the KZPCM SCSI buses as PSIOP buses. When the ITPSA driver is installed it will re- number the KZPCM SCSI buses. If the system disk is attached to the KZPCM, the re-numbering will cause the system to fail to boot because the system disk will not match the entry in the /etc/fstab file. The following procedure will avoid bus renumbering for the KZPCM adapters. The procedure assumes that the ITPSA driver has been installed in the system and that entries have been created in the system kernel configuration file for the ITPSA driver (this is done by the ITPSA installation procedure).

EK–KZPCM–UG. B01 6–3