Command Line Parameters And Variables; Modifying Zenworks Imaging Resource Files - Novell ZENWORKS LINUX MANAGEMENT 7.2 IR2 - ADMINISTRATION GUIDE 09-25-2008 Administration Manual

If you need to modify the Linux files, you must modify the initrd or root file sets the same way as
you would for other boot methods. For information, see
Root File Systems," on page
F.3.2 Command Line Parameters and Variables
There are four types of command line parameters that can be used with the ZENworks imaging
process. They are entered manually on the command line when booting from a CD or they can be
placed in the isolinux.cfg file located in the /boot/loader directory. The commands are
also located in the *.cfg files for PXE and are located in the /srv/tftp directory on the
ZENworks imaging server.
Kernel parameters: The valid parameters for the Linux kernel are found in the /
Documentation/kernel-parameters.txt file that is installed with the kernel
source.
Some devices have a faulty BIOS, where you must turn off ACPI processing for the kernel to
load properly. To do this, use the kernel parameter acpi=off. For more information, see
Support (http://www.novell.com/support/
search.do?cmd=displayKC&docType=kc&externalId=10099330&sliceId=&dialogID=128433
7&stateId=1%200%20548668).
Linuxrc parameters: These parameters affect the way linuxrc detects hardware or sets
hardware settings. They are described briefly in the /usr/share/doc/packages/
linuxrc/linuxrc.html file in a Linux system.
Linuxrc parameters can be found in the /linuxrc.config or /info files that reside in the
initrd file system. Some parameters can be placed in the settings.txt file that is
located on the root of the imaging CD or ZENworks partition, or in the /srv/tftp/boot
file for PXE booting.
Parameters that can be placed in the settings.txt file (the easiest file to edit) are limited.
During PXE booting, parameters that affect the network are not processed from
settings.txt, because by the time linuxrc loads the settings.txt file, the network is
already set up. Network settings can be placed in the settings.txt file when booting from
an imaging CD, because it is loaded early enough in the process to take effect.
ZENworks variables: Some environment variables affect the way imaging performs. They
can be configured in any file, but should normally be configured in the settings.txt file.
If you add variables to the settings.txt file that were not originally defined there, you
must export the variable. For example, in the settings.txt file, enter:
export IMGCMD="myscript"
A list of all image engine or script variables is listed under
Parameters," on page
Other variables: Environment variables that you might want in your script can be added in the
same manner as described for the ZENworks variables.
F.4 Modifying ZENworks Imaging Resource Files
From time to time you might want to modify an imaging distribution by adding your own files.
These can be additional programs, scripts, data files, or updated Linux drivers.
636 Novell ZENworks 7.2 Linux Management Administration Guide
638.
645.
Section F.4.2, "Adding Files to the Initrd or
Section F.7, "Variables and
Novell