#查看当前的oracle用户id及其所属组

oracle@SZDB:~> id

uid=2000(oracle) gid=1000(oinstall) groups=1000(oinstall),1002(dba)





#当前系统环境

oracle@SZDB:~> cat /etc/issue

Welcome to SUSE Linux Enterprise Server 10 SP3 (x86_64) - Kernel 
 (l).





#添 新用户robin

oracle@SZDB:~> su - root

Password: 

SZDB:~ # useradd -g oinstall -G dba robin





#查看以添 用户的信息

SZDB:~ # cat /etc/passwd | grep robin

robin:x:2004:1000::/home/robin:/bin/bash





#/home/robin是用户robin的家目录，下面将其修改为/users/robin(此为个人喜欢，可以不用修改)

SZDB:~ # vi /etc/passwd  





#查看修改后的结果

SZDB:~ # cat /etc/passwd | grep robin

robin:x:2004:1000::/users/robin:/bin/bash





# 此下面创建对应的家目录，

SZDB:~ # mkdir /users/robin

SZDB:~ # chown -R robin:oinstall /users/robin   #修改家目录的属主，属组





#修改新用户的密 

SZDB:~ # passwd robin

Changing password for robin.

New Password: 

Bad password: too simple

Reenter New Password: 

Password changed.





#切换到新用户

SZDB:~ # su - robin





#查看新用户robin的相关信息

robin@SZDB:~> id

uid=2004(robin) gid=1000(oinstall) groups=1000(oinstall),1002(dba)





#修改该新用户的环境变量

robin@SZDB:~> vi ~/.bash_profile   #可以将oracle用户的环境配置文件的内容复制过来





robin@SZDB:~> source ~/.bash_profile  #生效新的环境变量





robin@SZDB:~> sid

ORA_CRS_HOME=/opt/oracle/product/10gR2/crs

ORACLE_PATH=.:/users/robin/dba_scripts/custom/sql:/users/robin/dba_scripts/common/sql

ORA_ASM_HOME=/opt/oracle/product/10gR2/asm

ORACLE_SID=CNMMBO

ORACLE_BASE=/users/oracle

ORACLE_HOME=/users/oracle/OraHome10g





robin@SZDB:~> sql





SQL*Plus: Release 10.2.0.3.0 - Production on Thu Nov 22 17:31:50 2012





Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.





ERROR:

ORA-01034: ORACLE not available

ORA-27123: unable to attach to shared memory segment

Linux-x86_64 Error: 13: Permission denied   #提示许可拒绝





Enter user-name: goex_admin

Enter password: 

ERROR:

ORA-01034: ORACLE not available

ORA-27123: unable to attach to shared memory segment

Linux-x86_64 Error: 13: Permission denied





Enter user-name: 

robin@SZDB:~> ps -ef | grep pmon |grep SYBO2SZ

oracle    2350     1  0 Oct25 ?        00:00:00 ora_pmon_SYBO2SZ





robin@SZDB:~> export ORACLE_SID=SYBO2SZ

robin@SZDB:~> sqlplus / as sysdba





SQL*Plus: Release 10.2.0.3.0 - Production on Thu Nov 22 17:34:52 2012





Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.





Connected to an idle instance.





idle> exit

Disconnected

robin@SZDB:~> oerr ora 27123

27123, 00000, "unable to attach to shared memory segment"

// *Cause: shmat() call failed

// *Action: check permissions on segment, contact Oracle support





#查看$ORACLE_HOME/bin/oracle的权限，此处为751

robin@SZDB:~> cd $ORACLE_HOME/bin 

robin@SZDB:/users/oracle/OraHome10g/bin> ls -hltr oracle

-rwxr-x--x 1 oracle oinstall 99M 2011-05-13 14:26 oracle





#使用oracle 用户登录

robin@SZDB:~> su - oracle

Password:

oracle@SZDB:~> cd $ORACLE_HOME/bin





#修改$ORACLE_HOME/bin/oracle下的权限

oracle@SZDB:~/OraHome10g/bin> chmod 6751 oracle  #这个地方是关键，修改这个权限以便其他用户能够从同一主机访问oracle 环境

oracle@SZDB:~/OraHome10g/bin> ls -hltr oracle

-rwsr-s--x 1 oracle oinstall 99M 2011-05-13 14:26 oracle





#Author : Robinson

#Blog : http://dong2008hong.blog.163.com





#修改数据库所在文件夹的权限以便新用户robin有权限操作该路径下的所有文件

oracle@SZDB:~/OraHome10g/bin> chmod -R 775 /u02/database 

oracle@SZDB:~/OraHome10g/bin> su - robin

Password: 





robin@SZDB:~> sql





SQL*Plus: Release 10.2.0.3.0 - Production on Thu Nov 22 17:42:50 2012





Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.





Error accessing PRODUCT_USER_PROFILE

Warning:  Product user profile information not loaded!

You may need to run PUPBLD.SQL as SYSTEM





Connected to:

Oracle Database 10g Release 10.2.0.3.0 - 64bit Production





goex_admin@CNMMBO> 

 

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