Suggestions To Fix Error Ora-01034 Ora-27121 Linux-x86_64 13 Permission Denied

You may get error ora-01034 ora-27121 linux-x86_64 error 13 permission denied. Well, there are several ways to solve this problem and that is what we are going to discuss now.

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    How do I fix Ora-01034?

    To fix ORA-01034, make sure ORACLE_HOME and ORACLE_SID correctly match /etc/oratab or /var/opt/oracle/oratab. As a final step in resolving the ORA-01034 issue and running DBUA, ensure that ORACLE_HOME is set to the “old” home and not the “new” home.

    My problem:
    If I’m not already using tnsnames, I want to use the next IPC log I get what follows
    error.
    SQL> connect my user id/my password
    ERROR:
    ORA-01034: ORACLE not available
    ORA-27121: unable to determine shared memory segment length
    SVR4 error: 13: Access denied

    ora-01034 ora-27121 linux-x86_64 error 13 permission denied


    An answer to help solve your problem:
    ========================
    Make sure the “Oracle” file has permissions to use:
    cd $ORACLE_HOME/bin
    6751

    Why do I get “Oracle not available ora-01034” error in Oracle?

    Sometimes you may get the error “ORA-01034: ORACLE is no longer available ORA-27101: shared memory domain will not exist”. See below for details on related errors. Reason: Oracle is not running. Possible reasons: – SGA usually requires more memory than is allocated.

    Otherwise…
    1. Log in as an Oracle user
    pair . (normal) database shutdown
    3. Navigate to $ORACLE_HOME/bin
    Number 4. Run
    oracle chmod 6751
    5. Check operator permissions for Oracle using the following
    ls -l oracle

    they should be:
    -rwsr-s–x

    How do you fix Ora-27101 shared memory realm does not exist?

    Scenario 1: Invalid ORACLE_HOME and ORACLE_SID: ORA-27101 is usually due to how invalid the ORACLE_HOME and ORACLE_SID settings are at the OS level. You should check that sets ORACLE_HOME and ORACLE_SID respectively and ORACLE_HOME should not be a slash.

    Start a specific database and try to connect as dba, as well as non-Oracle users.

    How do you resolve ORA-01034 Oracle not available ORA-27101 shared memory realm does not exist?

    ORA-27101 watchThis is encountered with ORA-01034 when implementing a database. ORA-27101 also appears after registration is complete when trying to inject SQL*Plus. To solve this problem, which contains ORA-27101, you must be sure that ORACLE_HOME and ORACLE_SID are correct, so ORACLE_HOME must not have a trailing slash.

    if that doesn’t work:
    one . Make sure the permissions are set correctly on the Oracle filesystems ( Pick up at 755)
    3) The file system must be mounted with the correct setuid

    ora-01034 ora-27121 linux-x86_64 error 13 permission denied

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    How to solve ora-01565 ora-17503 Ora –01034 Ora-27121 error?

    The error ORA-01565 ORA-17503 ORA-01034 ORA-27121 is also related to Oracle’s convention of using two user grid users in my case. To reduce this error I followed the exact commands below. I changed the owner of the oracle exe binary to grid:oinstall and also the permission to 6751 as follows.