Summary of Oracle Installation in Linux

Oracle claims that the installation of the Oracle9i database in Linux requires at least MB of memory and at least 1 GB or two times of memory swap space. For servers with a system memory larger than 2 GB, the swap space can be between 2 gb-4gb.

If you want to try Oracle9i on a general PC with only MB of memory, you can run the Oracle database normally when 1 GB of swap space is allocated.

To check the memory space, log on to Linux and run the following command in the command line mode (bash environment:

Grep MemTotal/proc/meminfo

To check the swap space, run the following command on the command line:

Grep SwapTotal/proc/meminfo

1. decompress the. cpio file.

# Cpio-idvm <lnx_920_disk1.cpio # Cpio-idvm <lnx_920_disk2.cpio # Cpio-idvm <lnx_920_disk3.cpio

Generate three directories: Disk1, Disk2, and Disk3 in the current directory:

2. Patch

Unzip lerpm.zip # Rpm-ivh *. i586.rpm -- nodeps -- force

3. Create users and groups

# Groupadd dba # Mkdir/opt/OracleHome # Adduser-u 499-d/opt/OracleHome/-g dba oracle

Note:-u can be 1-500 (system user)-g after being added to the private group dba

# Chown oracle. dba/opt/OracleHome/ # Mkdir/opt/OracleHome/Ora9i # Chown oracle. dba/opt/OracleHome/Ora9i # Touch/etc/rac_on # Mkdir/opt/tmp # Chmod 1777/opt/tmp # Cp oracle. bashrc/opt/OraclHome/. bashrc

4. linux System Optimization

# Dd if =/dev/zero of =/opt/tmpswap bs = 1 k count = 1024000 # Chmod 600/opt/tmpswap # Mkswap/opt/tmpswap # Swapon-v/opt/tmpswap # Sysctl-w kernel. sem = "250 32000 100 128" # Sysctl-w kernel. shmmax = 'expr 512 \ * 1024 \ * 1024' # Echo "kernel. sem = 250 32000 100 128">/etc/sysctl. conf # Echo "kernel. shmmax = 'expr 512 \ * 1024 \ * 1024 '">/etc/sysctl. conf

Note: Check the changes in/etc/sysctl. conf after the preceding two lines are executed.

# Echo 65536>/proc/sys/fs/file-max # Ulimit-n 65536 # Ulimit-u 16384

Note: The above three lines of commands are system optimization. We recommend that you add them to the/etc/rc. local file. The system is automatically optimized at each startup.

5. Install

# Xhost localhost # Su-oracle # Cd/opt/source/Disk1 #./RunInstaller

Note the following:

Select software only and run the dbca command to create a database.

1. Solution to font problems during installation:

# Unset LANG

If the preceding command cannot be executed, modify/root/. i18n and/etc/sysconfig/i18n.

# Vi/root/. i18n

NOTE: For the root user's language environment, comment out all the items and add a line of LANG = "en_US"

# Vi/etc/sysconfig/i18n

Note: Add a new user's language environment in the system (each time a user is added, copy it to its home directory to generate. i18n)

2. Errors During installation:

The first few errors are indicated by the error message. Only the last/opt/OraclHome/Oracle9i/ctx/lib/file has an error and should be modified.

/Opt/OraclHome/Oracle9i/ctx/lib/env_ctx.mk File

Add a record in INSO_LINK = $ (LDLIBFLAG) dl

3. oracle User SHELL Problems

# Userdel oracle # Adduser-u 499-d/opt/OracleHome/-g dba oracle

TIPS:

# Hdparm-t/dev/hda: Check the read/write speed of the hard disk. If it is only about 2 MB, run the command. # hdparm-d 1/dev/hda: Enable the DMA function, you can add it to/etc/rc. local file.

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