Let's talk about the different installation paths used to install Oracle under Linux

Different installation paths can be used to install Oracle under Linux system. This article will introduce some Oracle installation paths for readers' reference.

1. /opt directory

/opt directory is a common software installation path. It is recommended to install Oracle to /opt/oracle. Before installing Oracle, you need to ensure that the /opt/oracle directory exists and has appropriate permissions. You can check it using the following command:

$ sudo mkdir -p /opt/oracle
$ sudo chown oracle:dba /opt/oracle

If you want to install Oracle to a different directory, just change the /opt/oracle can be the path you want.

2. /usr/local directory

/usr/local is another common installation path that can also be used to install Oracle. It is recommended to install Oracle to /usr/local/oracle.

$ sudo mkdir -p /usr/local/oracle
$ sudo chown oracle:dba /usr/local/oracle

Similarly, if you want to install Oracle to a different directory, just change /usr/local/oracle in the above command to the path you want.

3. /opt/oracle/product directory

The Oracle installation program installs the software to the /opt/oracle/product directory by default. The file structure under this path will include software version, language and platform information, etc. For example:

/opt/oracle/product/12.1.0/dbhome_1/
/opt/oracle/product/12.1.0/client_1/
/opt/oracle/product/11.2.0/dbhome_1/

If you use the default installation path, the appropriate entries will be added to /etc/oratab to automatically start and stop Oracle services.

4. /u01/app directory

Oracle recommends installing the software to the /u01/app directory. This method provides more flexibility and scalability than the /opt/oracle/product directory. The file structure under this path will be similar to the following:

/u01/app/oracle/product/12.1.0/dbhome_1
/u01/app/oracle/product/12.1.0/client_1
/u01/app/oracle/product/11.2.0/dbhome_1

When choosing an installation path, there are several factors to consider, such as administrator rights, disk space, file system type, etc.

In short, the above are all commonly used Oracle installation paths. Which one you choose depends on your actual needs and preferences.

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