OCP(02).安装Oracle11g

[root@ocp ~]# ls /tmp
linux_11gR2_database_1of2.zip linux_11gR2_database_2of2.zip
[root@ocp ~]# cd /tmp
[root@ocp tmp]# ls
linux_11gR2_database_1of2.zip linux_11gR2_database_2of2.zip
[root@ocp tmp]# unzip linux_11gR2_database_1of2.zip
-bash: unzip: command not found
[root@ocp tmp]# yum install -y unzi

创建相关用户：

[root@ocp tmp]# groupadd oinstall
[root@ocp tmp]# groupadd dba
[root@ocp tmp]# useradd -g oinstall -G dba oracle
[root@ocp tmp]# passwd oracle
Changing password for user oracle.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: all authentication tokens updated successfully.

创建相关目录

# mkdir -p /u01/app/
# chown -R oracle:oinstall /u01/app/
# chmod -R 775 /u01/app/

安装X相关软件：

# yum groupinstall -y 'X Window System'

以oracle用户登录

[oracle@ocp ~]$ /tmp/database/runInstaller

如果上图是如下所示：

# vi /etc/sysconfig/i18n
LANG="en_US.UTF-8"

语言随便选 。

选择企业版。

# yum install gcc libgomp libaio compat-libstdc++-33 elfutils-devel elfutils-devel-static glibc-devel glibc-
headers kernel-headers gcc-c++ libaio-devel libstdc++-devel sysstat unixODBC unixODBC-devel ksh

开始安装 ……



建库

oracle@ocp ~]$ cd
oracle@ocp ~]$ vi .bash_profile
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1
export PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
$ source .bash_profile

配置监听程序

[oracle@ocp ~]$ netca

$ sqlplus / as sysdba
sqlplus: error while loading shared libraries: /u01/app/oracle/product/11.2.0/dbhome_
1/lib/libclntsh.so.11.1: cannot restore segment prot after reloc: Permission denied
$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 10 16:29:36 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-12162: TNS:net service name is incorrectly specified
Enter user-name:
ERROR:
ORA-12162: TNS:net service name is incorrectly specified
Enter user-name:
ERROR:
ORA-12162: TNS:net service name is incorrectly specified
SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plu
[oracle@ocp ~]$ export ORACLE_SID=ocp
[oracle@ocp ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 10 16:30:06 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL>
$ vi .bash_profile
export ORACLE_SID=ocp

查看主机名：

$ hostname
ocp.example.com

检查/etc/hosts文件

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
192.168.10.244 ocp.example.com

启动监听：

[oracle@ocp ~]$ lsnrctl start （stop）

启动实例，挂载数据库

SQL> startup （shutdown abort）

查看监听状态：

[oracle@ocp ~]$ lsnrctl status

安装rlwrap使sqlplus中的方向键好用：



安装rlwrap

tar zxvf /home/oracle/rlwrap-0.41.tar.gz
ls
cd rlwrap-0.41
ls
./configure
yum list | grep readline
yum install -y readline-devel
./configure
make
make check
make install

切换到oracle

su - oracle
vi .bashrc
# User specific aliases and functions
alias sqlplus='rlwrap sqlplus'
alias rman='rlwrap rman'
source .bashrc

使用sqldeveloper远程连接



问题：

执行startup启动数据库时报错：No space left on device

利用DBCA创建数据库，重启数据库，都可能会出现此类错误,主要原因可能是数据库实例太

多，需要比较多的信号量

报错信息如下：

ORA-27154: post/wait create failed
ORA-27300: OS system dependent operation:semget failed with status: 28
ORA-27301: OS failure message: No space left on device
ORA-27302: failure occurred at: sskgpcreates

解决的办法就是修改Linux 内核参数

[root@linuxserver ~]# /sbin/sysctl -a | grep sem
kernel.sem = 250 1024 100 128
[root@linuxserver ~]# vi /etc/sysctl.conf
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128

然后执行命令

sysctl -p