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Editorial Team
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Asked: 2026-05-16T07:32:25+00:00

I am trying to import into oracle using imp command and the output of

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I am trying to import into oracle using imp command and the output of the command is as below.

invincible:/home/invincible# imp

Import: Release 10.2.0.1.0 - Production on Thu Aug 12 22:19:00 2010

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Username: n_data
Password: 

IMP-00058: ORACLE error 1034 encountered
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux Error: 13: Permission denied
IMP-00005: all allowable logon attempts failed
IMP-00000: Import terminated unsuccessfully
invincible:/home/invincible#

user name and password are correct(I am able to connect using sqldeveloper). I have granted dba access to n_data. All the environment variables are set (I ran oracle_env.sh before running env ). So what might be the problem? I am running oracle on debian.

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1 Answer

  1. Editorial Team

    Check this blog post: ORA-27123: unable to attach to shared memory segment.

    It describes same error as you have and problem was caused with incorrectly set permissions on oracle executable.

    This is excerpt from the above blog post:

    Here the oracle file permission has
    -rwxrwxr-x i.e. 775, but this file must have the permission -rwsr-s- -x
    i.e. 6751

    Change the permissions for oracle
    file.

    $ cd $ORACLE_HOME/bin
$ chmod 6751 oracle
$ ls -l oracle
-rwsr-s--x 1 oracle dba 119582976 Feb 3 2008 oracle

    After changing the permissions on
    oracle executable file, all the users
    are now able to connect to the
    database without any errors.

    Read blog post for detailed information.

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