Solution to oracle Installation errors in linux

[Root @ bt bin] #./sqlplus

./Sqlplus: error while loading shared libraries:/home/mnum/app/mnum/product/11.2.0/dbhome_1/lib/libclntsh. so.11.1: cannot restore segment prot after reloc: Permission denied

Solve the Problem of libclntsh. so first:

[Root @ bt bin] # semanage fcontext-a-t textrel_shlib_t/home/mnum/app/mnum/product/11.2.0/dbhome_1/lib/libclntsh. so.11.1

Csvn homedir/opt/CollabNet_Subversion or its parent directory conflicts with a defined context in/etc/selinux/targeted/contexts/files/file_contexts, /usr/sbin/genhomedircon will not create a new context. this usually indicates an incorrectly defined system account. if it is a system account please make sure its login shell is/sbin/nologin.

[Root @ bt bin] # restorecon-R-v/home/mnum/app/mnum/product/11.2.0/dbhome_1/lib/libclntsh. so.11.1

Restorecon reset/home/mnum/app/mnum/product/11.2.0/dbhome_1/lib/libclntsh. so.11.1 context user_u: object_r: user_home_t: s0-> system_u: object_r: Weight: s0

[Root @ bt bin] #./sqlplus

Error 6 initializing SQL * Plus

SP2-0667: Message file sp1.msb not found

SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory

To solve the problem above, add the environment variable:

[Root @ bt bin] # vi/etc/profile

ORACLE_HOME =/home/mnum/app/mnum/product/11.2.0/dbhome_1

ORACLE_SID = ORCL

PATH =: $ ORACLE_HOME/bin

[Root @ bt bin] # source/etc/profile (make the variable take effect)

[Root @ bt ~] # Sqlplus

SQL * Plus: Release 11.2.0.1.0 Production on Fri Jul 16 13:34:08 2010

Copyright (c) 1982,200 9, Oracle. All rights reserved.

Enter user-name: SYSTEM
Enter password:
ERROR:
ORA-12546: TNS: permission denied

To specify the username/password @ SID:

[Root @ bt ~] # Sqlplus SYSTEM/Oracle11 @ ORCL

SQL * Plus: Release 11.2.0.1.0 Production on Fri Jul 16 13:35:29 2010

Copyright (c) 1982,200 9, Oracle. All rights reserved.

Connected:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>

OK !!

[Supplement]

Connect sqlplus to a remote database

[Root @ bt ~] # Sqlplus Oracle11 @ ip: port/ORCL "> SYSTEM/Oracle11 @ ip: port/ORCL



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