Oracle Database Oracle Clusterware Installation Guide for HP-UX

Understanding the Oracle Base Directory Path
3. To create the oracle or asm user, enter a command similar to the following (in
this example, to create the oracle user):
# /usr/sbin/useradd -u 502 -g oinstall -G dba[,oper] oracle
In the preceding command:
– The -u option specifies the user ID, which must be the user ID that you
identified in the previous subsection
– The -g option specifies the primary group, which must be the Oracle
Inventory group, for example oinstall
– The -G option specifies the secondary groups, which must include the OSDBA
group and if required, the OSOPER group. For example: dba or dba,oper
Note: If the user already exists, then use the usermod command
to modify it if necessary. If you cannot use the same user ID for the
user on every node, then view the /etc/passwd file on all nodes
to identify a user ID that is available on every node. You must then
specify that ID for the user on all of the nodes.
4. Set the password of the user. For example:
# passwd oracle
5. Complete SSH configuration for each user as described in the section "Configuring
SSH or RCP on All Cluster Nodes" on page 2-20.
6. Complete user environment configuration tasks for each user as described in the
section Configuring Software Owner User Environments on page 2-26.
3.3 Understanding the Oracle Base Directory Path
This section contains information about preparing an Oracle base directory.
3.3.1 Overview of the Oracle Base directory
During installation, you are prompted to specify an Oracle base location, which is
owned by the user performing the installation. You can choose a location with an
existing Oracle home, or choose another directory location that does not have the
structure for an Oracle base directory. However, setting an Oracle base directory may
become mandatory in a future release.
Using the Oracle base directory path helps to facilitate the organization of Oracle
installations, and helps to ensure that installations of multiple databases maintain an
Optimal Flexible Architecture (OFA) configuration.
3.3.2 Understanding Oracle Base and Oracle Clusterware Directories
Even if you do not use the same software owner to install Oracle Clusterware and
Oracle Database, be aware that the root.sh script in the clusterware installation
changes ownership of the Oracle Clusterware home directory to root. For this reason,
the Oracle Clusterware home cannot be in the same location as other Oracle software.
Oracle Real Application Clusters Preinstallation Tasks 3-11