Novell ZENWORKS LINUX MANAGEMENT 7.3 IR2, Administration Manual

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650 Novell ZENworks 7.3 Linux Management Administration Guide
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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.
Š
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
Novell
Support (http://www.novell.com/support/
search.do?cmd=displayKC&docType=kc&externalId=10099330&sliceId=&dialogID=128433
7&stateId=1%200%20548668)
.
Š
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.
Š
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 Section F.7, “Variables and
Parameters,” on page 659 .
Š
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.
You can use the following methods to update imaging resource files:
Š
The easiest method is to edit the
settings.txt
file, which is located on the root of the
imaging CD or in
/srv/tftp/boot
on the ZENworks Imaging Server for PXE booting.