Install the Oracle 11g server in Linux

Installation environment

Linux Server: SUSE10 sp2 64-bit

Oracle Server: Oracle11gR2 64-bit

System Requirements

1. Requirements for installing Oracle in Linux

System Requirements	Description
Memory	Physical memory must be higher than 1 GB
Swap space	Generally, it is twice the memory size. For example, you can set the swap partition size to 3 GB for 1 GB memory.
Hard Disk	5G or above

2. Modify core operating system parameters

Perform the following steps under the Root user:

1) modify the user's SHELL restrictions and modify the/etc/security/limits. conf file

Run vi/etc/security/limits. conf and pressIEnter the editing mode and add the following content to the file.

Oracle soft nproc 2047 Hard nproc 16384 Oracle soft nofile 1024 Oracle hard nofile 65536

After editing, Press Esc and enter ": wq" to save the disk and exit.

2) modify the/etc/pam. d/login file and enter the following command:Vi/etc/pam. d/login, PressIEnter the editing mode and add the following content to the file.

Session required/lib/security/pam_limits.so Session required pam_limits.so

After editing, Press Esc and enter ": wq" to save the disk and exit.

3) modify the Linux kernel, modify the/etc/sysctl. conf file, and enter the following command:Vi/etc/sysctl. conf, PressIKey to enter the editing mode, add the following content to the file

Fs. file-max = 6815744 Fs. aio-max-nr = 1048576 Kernel. shmall = 2097152 Kernel. shmmax = 2147483648 Kernel. shmmni = 4096 Kernel. sem = 250 32000 100 128 Net. ipv4.ip _ local_port_range = 9000 65500 Net. core. rmem_default = 4194304 Net. core. rmem_max = 4194304 Net. core. wmem_default = 262144 Net. core. wmem_max = 1048576

After editing, Press Esc and enter ": wq" to save the disk and exit.

4) to make the/etc/sysctl. conf change take effect immediately, run the following command. Input:Sysctl-pShown as follows:

Linux :~ # Sysctl-p Net. ipv4.icmp _ echo_ignore_broadcasts = 1 Net. ipv4.conf. all. rp_filter = 1 Fs. file-max = 6815744 Fs. aio-max-nr = 1048576 Kernel. shmall = 2097152 Kernel. shmmax = 2147483648 Kernel. shmmni = 4096 Kernel. sem = 250 32000 100 128 Net. ipv4.ip _ local_port_range = 9000 65500 Net. core. rmem_default = 4194304 Net. core. rmem_max = 4194304 Net. core. wmem_default = 262144 Net. core. wmem_max = 1048576

5) edit/etc/profile and enter the following command:Vi/etc/profile, PressIEnter the editing mode and add the following content to the file.

If [$ USER = "oracle"]; then If [$ SHELL = "/bin/ksh"]; then Ulimit-p 16384 Ulimit-n 65536 Else Ulimit-u 16384-n 65536 Fi Fi

After editing, Press Esc and enter ": wq" to save the disk and exit.

6) Create related users and groups as owners of software installation and support groups.

Create a user and enter the following command: Groupadd oinstall Groupadd dba Create an Oracle user and password, and enter the following command: Useradd-g oinstall-g dba-m oracle Passwd oracle The password will be entered twice, but the password must be consistent. Press enter to confirm.

7) Create a database software directory, a data file storage directory, and a directory location based on your needs. Pay attention to the disk space. Here I will put it under the oracle user, for example:

Enter the following command: Mkdir/home/oracle/app Mkdir/home/oracle/app/oracle Mkdir/home/oracle/app/oradata Mkdir/home/oracle/app/oracle/product

8) change the directory owner to be owned by an Oracle user and enter the following command:

Chown-R oracle: oinstall/home/oracle/app

9) configure the environment variables of oracle users. First, switch to the newly created oracle user,

Input:Su-oracleAnd then directly enter:Vi. bash_profile

PressIEdit. bash_profile to enter the editing mode and add the following content:

Umask 022 Export ORACLE_BASE =/home/oracle/app Export ORACLE_HOME = $ ORACLE_BASE/oracle/product/11.2.0/dbhome_1 Export ORACLE_SID = orcl Export PATH = $ PATH: $ HOME/bin: $ ORACLE_HOME/bin Export LD_LIBRARY_PATH = $ ORACLE_HOME/lib:/usr/lib

After editing, Press Esc and enter ": wq" to save the disk and exit.

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