User`s guide

Oracle Database Preinstallation Requirements
3-14 Oracle Database Installation and Administration Guide
The directory paths specified on each line identify Oracle home directories.
Directory paths that end with the user name of the Oracle software owner are
existing Oracle base directories. For the installation of Oracle Database 11g Release
2, you can choose the subdirectory
/u01/app as root for your Oracle base
directory. If you intend to use the
orac1120 user to install the software, then you
can choose the following directory:
/u01/app/orac1120
Ensure that the Oracle base directory for this installation meets the following
conditions:
■ It is not on the same file system as the operating system ( root or var ).
■ It has sufficient free disk space.
To determine the free disk space on the file system where the Oracle base directory is
loca
ted, enter the following command:
$ df -k oracle_base_path
Note: The installation procedure looks for an Oracle base directory
and prompts you to accept the suggested path or to enter a new path.
3.3.6.2 Create or Expand a File System for the Oracle Base Directory
If you want to install the Oracle software into an existing file system with Oracle base
directories but the POSIX file system has insufficient space, then the POSIX
administrator or BS2000 system administrator can expand the file system with the
Oracle base directory using the POSIX installer. Complete the following steps to
expand the file system using the POSIX installer:
1. Start the POSIX Installer using the following command:
/START-POSIX-INSTALLATION
2. Choose Administrate POSIX filesystems.
3. Mark the desired file system and choose expand.
4. Enter the number of PAM pages by which the file system should be expanded.
If you want the Oracle base directory to res
ide in a new POSIX files system, then the
POSIX administrator or BS2000 system administrator must create a POSIX file system
using the POSIX installer. Complete the following steps to create a POSIX file system
using the POSIX installer:
1. Start the POSIX installer using the following command:
/START-POSIX-INSTALLATION
2. Choose Administrate POSIX filesystems and then, choose append.
The POSIX installer allocates a new POSIX conta
iner file in the BS2000 file system and
creates the POSIX file system inside the container. The POSIX installer also asks for a
mount point for the new file system. If the mount point does not exist, then it is
created in the root system and the new file system is mounted. By default, the owner
of the new file system is SYSROOT. The administrator must now create the Oracle base
directory and specify the correct owner, group, and permissions for it with the
following specifications:
# mkdir -p /mount_point/app/oracle_sw_owner