When installing oracle software in the oracle tar mode, if the operating system is the same, you can directly install the software tar. It should be noted that tar can be used only when all minor versions of the system are the same. Www.2cto.com can directly tar/oracle directory, so that the environment variable does not need to be set, if necessary, change the sid to OK. After decompression, remember to execute relink all under the oracle user. Run sh $ ORACLE_HOME/install/changePerm. sh then switch to the root user and run root under $ ORACLE_HOME. sh www.2cto.com if you want to upgrade later, you also need to set something: nbzwdb # [/var/opt/oracle] more/var/opt/oracle/oraInst. locinventory_loc =/oracle/oraInventoryinst_group = dba remembers to be the root user. Note the permissions: www.2cto.com nbzwdb # [/var/opt/oracle] ll ora *-rwxrwxr-x 1 root sys 50 Sep 17 22:51 oraInst. loc is OK. -EOF