64-bit Oracle 11gR2 Silent Installation on CentOS 6.2 X64

On CentOS 6.2 X64, 64-bit Oracle11gR2 is installed silently, and listening settings are silent.

1. Environment before installation:
Operating System: CetnOS6.2x64 minimal installation. configured network IP address: 172.16.2.182, physical memory 8 GB, hard disk 100 GB.
Downloaded: linux.x64_11gR2_database_1of2.zip
Linux.x64_11gr2_databasesilicate f2.zip
In/opt/

2. Preparations
After the root user logs on
# Yum install vim // if you prefer vim, edit various configuration files.
# Yum install unzip // download unzip to decompress the preceding two compressed files
# Cd/opt // switch the current directory to the directory where the oracle compressed file is located
# Unzip linux.x64_11gR2_database_1of2.zip // decompress
# Unzip linux.x64_11gr2_database204 f2.zip
After decompression, a new/opt/database directory is added, which contains all the oracle installation files after decompression.
 
In the/etc/hosts file, add the Host Name (obtained through hostname) to the loopback IP address ing as follows:
127.0.0.1 localhost. localdomain localhost4 localhost4.localdomain4 oracle11gcentos6.dlxg.gov.cn
: 1 localhost. localdomain localhost6 localhost6.localdomain6 oracle11gcentos6.dlxg.gov.cn

# Vim/etc/selinux/conf set SELINUX = disabled
# Setenforce 0 // disable selinux
# Service iptables stop // temporarily close the Firewall
 
3. install required packages
# Yum install gcc
# Yum install make
# Yum install binutils
# Yum install gcc-c ++
# Yum install compat-libstdc ++-33
# Yum install elfutils-libelf-devel
# Yum install elfutils-libelf-devel-static
# Yum install ksh
# Yum install libaio
# Yum install libaio-devel
# Yum install numactl-devel
# Yum install sysstat
# Yum install unixODBC
# Yum install unixODBC-devel
# Yum install pcre-devel
 
4. Install users and user groups
# Groupadd oinstall
# Groupadd dba
# Useradd-g oinstall-G dba-d/home/oracle
# Passwd oracle // set the oracle Password

5. Modify the kernel parameter configuration file
# Add vim/etc/sysctl. conf at the end of the file
Fs. aio-max-nr = 1048576
Fs. file-max = 6553600
Kernel. shmall = 2097152
Kernel. shmmax = 2147483648
Kernel. shmmni = 4096
Kernel. sem = 250 32000 100 128
Net. ipv4.ip _ local_port_range = 1024 65000
Net. core. rmem_default = 262144
Net. core. rmem_max = 4194304
Net. core. wmem_default = 262144
Net. core. wmem_max = 1048586
Save the file.
#/Sbin/sysctl-p // make the parameter take effect
 
6. Modify the user's restricted file
# Vim/etc/security/limits. conf added after the file
Oracle soft nproc 2047
Hard nproc 16384
Oracle soft nofile 1024
Oracle hard nofile 65536
Oracle soft stack 10240
Save the file.
Modify the/etc/pam. d/login file and add the following:
Session required/lib64/security/pam_limits.so // 64 is the system. Do not write it as/lib/security/pam_limits.so. Otherwise, you cannot log on.
Session required pam_limits.so
Modify/etc/profile and add:
If [$ USER = "oracle"]; then
If [$ SHELL = "/bin/ksh"]; then
Ulimit-p 16384
Ulimit-n 65536
Else
Ulimit-u 16384-n 65536
Fi
Fi

7. Create an installation directory and set File Permissions
# Mkdir/opt/oracle
# Mkdir/opt/oracle/11.2.0 // database system installation directory
# Mkdir/opt/oradata // database data installation directory
# Mkdir/opt/oradata_back // Data Backup Directory
# Mkdir/home/oracle/inventory // List Directory
# Chown-R oracle: oinstall/opt/oracle
# Chown-R oracle: oinstall/home/oracle/inventory
# Chomod-R 775/opt/oracle

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