Installation of Oracle 11g R2 on CentOS 6.4

"//" Is followed by a comment. "#" indicates the operation under the root user, and "$" indicates the operation under the Oracle user.

# Chkconfig iptables off // permanently disable the firewall or

# Service iptabels stop // temporarily disable the firewall. It will be automatically enabled after the system is restarted.

 

1. hardware check:

1.1 memory requirements:

The memory size is greater than 1 GB (the memory size is slightly larger when the virtual machine is used for installation; otherwise, the installation check fails)

# Cat/proc/meminfo // view memory size

1.2 requirements for swap partitions:

Swap partition is 1.5 times the memory, which can be adjusted according to the actual situation

# Grep SwapTotal/proc/meminfo // view swap partition size

1.3 hard disk space requirements

Hard Disk Space must meet the required software size,/tmp partition not less than 400 M, installation directory should be greater than 4G:

# Df-h // view disk space usage

# Du-ch // view the directory space size

 

 

2. Software Check: 2.1 check whether the component package on which oracle depends is installed:

# Rpm-qa | grep package name // check whether the package is installed

 

1. binutils-2.17.50.0.6

2. compat-libstdc ++-33-3.2.3

 

3. elfutils-libelf-0.125

4. elfutils-libelf-devel-0.125

5. elfutils-libelf-devel-static-0.125

 

6. gcc-4.1.2

7. gcc-c ++-4.1.2

 

Glibc-2.5-24

9. glibc-common-2.5

Glibc-devel-2.5

11. glibc-headers-2.5

 

12. kernel-headers-2.6.18

13. pdksh-5.2.14

 

14. libaio-0.3.106

Libaio-devel-0.3.106

 

16. libgcc-4.1.2

17. libgomp-4.1.2

18. libstdc ++-4.1.2

19. libstdc ++-devel-4.1.2

 

20. make-3.81

21. numactl-devel-0.9.8.i386

22. sysstat-7.0.2

23. unixODBC-2.2.11

UnixODBC-devel-2.2.11

 

 

2.2 install the missing software package:

# Rpm-ivh package name // use a local CD image to install the package

# Yum install package name // use yum for online Installation

 

3. configure system environment 3.1 to modify kernel parameters:

# Vi/etc/sysctl. conf

Fs. file-max = 6815744

Fs. aio-max-nr = 1048576

Net. ipv4.ip _ local_port_range = 9000 65500

Net. core. rmem_default = 262144

Net. core. rmem_max = 4194304

Net. core. wmem_default = 262144

Net. core. wmem_max = 1048576

Kernel. sem = 250 32000 100 128

Kernel. shmall = 2097152 (you can follow the system default, do not modify)

Kernel. shmmax = 536870912 (you can follow the system default, do not modify)

 

# Sysctl-p // make kernel parameters take effect

 

 

3.2 modify the number of processes and the maximum number of sessions

# Vi/etc/security/limits. conf

Oracle soft nproc 2047

Hard nproc 16384

Oracle soft nofile 1024

Oracle hard nofile 65536

 

3.3 Association settings

# Vi/etc/pam. d/login

Session required pam_limits.so

 

3.4 Modify/etc/profile

# Vi/etc/profile

If [$ USER = "oracle"]; then

If [$ SHELL = "/bin/ksh"]; then

Ulimit-p 16384

Ulimit-n 65536

Else

Ulimit-u 16384-n 65536

Fi

Fi

 

 

4. Create an installer, group, and directory 4.1. Create the installer and group

# Groupadd oinstall // create an oinstall Group

# Groupadd dba // create a dba group

# Useradd-g oinstall-G dba oracle // create a user oracle, set the master group to oinstall, And the slave group to dba

# Id oracle // check result

# Passwd oracle // set the oracle user password

 

 

4.2 create a software installation project

# Mkdir-p/home/oracle_11/app // create the installation root directory

# Chown-R oracle: oinstall/home/oracle_11 // users and groups of the installation root directory are oracle users and oinstall groups

# Chmod-R 755/home/oracle_11 // modify the access permission of the directory to be fully controlled by the owner, and read and execute the group and other users

 

4.3 set user environment variables

# Vi/home/oracle/. bash_profile

ExportORACLE_BASE =/home/oracle_11/app // software installation base Directory

ExportORACLE_SID = orcl // Instance name

ExportORACLE_HOME = $ ORACLE_BASE/product/11.2.0/dbhome_1 // software installation product directory

ExportPATH = $ PATH: $ HOME/bin: $ ORACLE_HOME/bin

 

# Source/home/oracle/. bash_profile // load the file to make the configuration take effect

# Env | more // check whether the configured environment variables are correct

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