Users Guide

Recommended Linux Install Preparation | Preparing for Installation
OMNM 6.5.3 Installation Guide 17
Recommended Linux Install Preparation
If you are installing on Linux, you must log in as a non-root user . The Linux installation prompts
you to run some additional scripts as root during the installation process.
CAUTION:
Do not log in as root and su to a non-root user. Make sure your login automation does not do this either.
This causes problems, particularly with upgrades.
Make sure that you are installing as a user with the correct permissions, and are in the correct
group. You must configure the installation directory so this user and group have all permissions
(770, at least). You may install without any universal permissions. However, you must create a home
directory for the installing user.
NOTE:
All files created during installation respect a umask of 007. All files from the operatingSystem.jar file are
770. Files from ocpinstall -x are set for 660. Bin scripts from ocpinstall -x are 770.
Best practice is to install as the user designated as DBA. If necessary, create the appropriate user
and login as this user for running the install program. The installing user must have create
privileges for the target directory. By default, this directory is:
/dellemc/openmanage/networkmanager
CAUTION:
Before you install this application, remove any MySQL if it exists. Make sure to remove or rename the
my.cnf file for that previous installation. If it is on the path, it can interfere with the correct operation of
the OpenManage Network Manager application. See MySQL Server Configuration File Examples on page
158 for more about configuring MySQL.
NOTE:
To set the environment correctly for command line functions, after installation, type . /etc/
.dsienv
in Linux—[dot][space]/etc/[dot]dsienv) before running the specified command.
Also: This application can run on any Linux desktop environment (CDE, KDE, Gnome, and so on) but the
installer will only install shortcuts for CDE.
Prepare your Linux system for OpenManage Network Manager installation as follows.
1 Add your IP and hostname to the /etc/hosts file for proper name resolution.
For example, add the following for the Test.localdomain host:
10.18.0.241 Test Test.localdomain
Verify that /etc/hosts file points to the new name. Use the cat command to see output with
the correct IP Address/hostname pairs.
[qa@Test Desktop]$ cat /etc/hosts
10.18.0.241 Test Test.localdomain
Remember that the OpenManage Network Manager application requires a fixed IP address
for its host.