Download Oracle Database Software from this web site
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
Part I: Installing Linux
This guide assumes a server with the following hardware:
- 800MHz Pentium III CPU
- 1024MB of RAM
- SCSI host adapter (Ultra SCSI 160)
- Four SCSI disk drives (1 x 9GB + 3 x 36GB)
- One 100Base-T Ethernet adapter
Your hardware does not have to match this in order to use this guide. All that is necessary for a basic database install is a single CPU, 1024MB of RAM, and one disk drive (IDE, SCSI, or FireWire) with at least 7GB of free space.
Now, let's walk through the process of installing the Linux operating system on a server. The instructions assume a fresh install of Linux (as opposed to an upgrade), that the server will be dedicated to Oracle, and that no other operating systems or data are on the server.
Oracle Database 10g Release 2 is certified to run the base release of RHEL4 (Advanced Server and Enterprise Server) without updates. If you have update CDs, you can use the boot CD from the update instead of the boot CD from the base release to automatically apply all updates during the installation. All updates from Red Hat are supported by Oracle.
The easiest and fastest way to apply the updates for a fresh install of Linux is to perform the install by using the update CDs. If Linux is already installed or you don't have the updates on CDs, they can be applied through RHN. Because this guide is designed for a fresh Linux install, you'll use the update CDs.
- Boot the server using the first CD.
- You may need to change your BIOS settings to allow booting from the CD.
- The boot screen appears with the boot: prompt at the bottom of the screen.
- Select Enter to continue with a graphical install on the console. (For other installation methods and options, refer to the Red Hat Installation Guide.)
- The installer scans your hardware, briefly displays the Red Hat splash screen, and then begins a series of screen prompts.
- Language Selection
- Keyboard Configuration
- Welcome Screen
- Disk Partitioning Setup
- A thorough treatment of disk partitioning is beyond the scope of this guide, which assumes that you are familiar with disk partitioning methods. (WARNING: Improperly partitioning a disk is one of the surest and fastest ways to wipe out everything on your hard disk. If you are unsure how to proceed, stop and get help, or you will risk losing data!)
This guide uses the following partitioning scheme, with ext3 for each filesystem:
The 9GB disk on the first controller (/dev/sda) will hold all Linux and Oracle software and contains the following partitions:
- 100MB /boot partition
-1,500MB swap partition—Set this to at least twice the amount of RAM in the system but to no more than 2GB. (Thirty-two-bit systems do not support swap files larger than 2GB.) If you need more than 2GB of swap space, create multiple swap partitions.
-7,150MB root partition—This partition will be used for everything, including /usr, /tmp, /var, /opt, /home, and more. This approach is purely to simplify installation for the purposes of this guide. A more robust partitioning scheme would separate these directories onto separate filesystems.
- Boot Loader Configuration
- Network Configuration
- It is usually best to configure database servers with a static IP address. To do so, click on Edit .
- A pop-up window appears. Uncheck the Configure using DHCP box, and enter the IP Address and Netmask for the server. Be sure that Activate on boot is checked, and click on OK .
- In the Hostname box, select manually and enter the hostname.
- In the Miscellaneous Settings box, enter the remaining network settings.
- Firewall Configuration
- For the purposes of this walk-through, no firewall is configured. Select No firewall
- Select Disabled on the "Enable SELinux" drop down list.
- Click on Proceed when the "Warning - No Firewall" window appears.
- Additional Language Support
- Time Zone Selection
- Choose the time settings that are appropriate for your area. Setting the system clock to UTC is usually a good practice for servers. To do so, click on System clock uses UTC.
- Set Root Password
- Enter a password for root, and enter it again to confirm.
- Package Installation Defaults
- Select Customize software packages to be installed.
- Package Group Selection
- Select only the package sets shown here and leave all others unselected.
- Desktop
- Applications
- Graphical Internet (optional)
- Servers
- Do not select anything in this group.
- Development
- System
- Administration Tools
- System Tools
- Add the package 'sysstat' by clicking on the Details link and selecting "sysstat - The sar an iostat system monitoring commands." from the Optional Packages list.
- Miscellaneous
- Do not select anything in this group.
- Click on Next to proceed.
- Installing Packages
- Software will be copied to the hard disk and installed. Change disks as prompted.
- Congratulations
- Remove the installation media from the system, and click on Reboot .
- The system automatically reboots and presents a new welcome screen.
- License Agreement
- Read the license agreement. If you agree to the terms, select Yes, I agree to the License Agreement and click on Next.
- Date and Time
- Set the Date and Time.
- If you want to use an NTP server (recommended), select Enable Network Time Protocol and enter the name of the NTP server.
- Display
- Accept the defaults or change as required.
- Red Hat Login
- Enter your Red Hat Network login and password or create a new one.
- System User
- Create an account for yourself.
- Do not create an account for oracle at this time. Creating the oracle account is covered later in this section.
- Additional CDs
- Finish Setup
- A graphical login screen appears.
- Congratulations! Your RHEL4 software is now installed.
Verifying Your Installation
Required kernel version: 2.6.9-5.0.5.EL This kernel, or any of the kernels supplied in updates, works with Oracle Database 10
g Release 2 .
Check your kernel version by running the following command:
uname -r
Ex:
# uname -r
2.6.9-22.ELsmp
Once you've completed the steps above, all of the packages required for Oracle Database 10
g Release 2 will have been installed. Verify this using the example below.
Required package versions (or later):
- binutils-2.15.92.0.2-10.EL4
- compat-db-4.1.25-9
- control-center-2.8.0-12
- gcc-3.4.3-9.EL4
- gcc-c++-3.4.3-9.EL4
- glibc-2.3.4-2
- glibc-common-2.3.4-2
- gnome-libs-1.4.1.2.90-44.1
- libstdc++-3.4.3-9.EL4
- libstdc++-devel-3.4.3-9.EL4
- make-3.80-5
- pdksh-5.2.14-30
- sysstat-5.0.5-1
- xscreensaver-4.18-5.rhel4.2
- libaio-0.3.96
openmotif21-2.1.30-11.RHEL4.2 (Required only to install Oracle demos. Installation of Oracle demos is not covered by this guide.)
To see which versions of these packages are installed on your system, run the following command:
rpm -q binutils compat-db control-center gcc gcc-c++ glibc glibc-common \
gnome-libs libstdc++ libstdc++-devel make pdksh sysstat xscreensaver libaio openmotif21
Ex:
# rpm -q binutils compat-db control-center gcc gcc-c++ glibc glibc-common \
> gnome-libs libstdc++ libstdc++-devel make pdksh sysstat xscreensaver libaio openmotif21
binutils-2.15.92.0.2-15
compat-db-4.1.25-9
control-center-2.8.0-12.rhel4.2
gcc-3.4.4-2
gcc-c++-3.4.4-2
glibc-2.3.4-2.13
glibc-common-2.3.4-2.13
gnome-libs-1.4.1.2.90-44.1
libstdc++-3.4.4-2
libstdc++-devel-3.4.4-2
make-3.80-5
pdksh-5.2.14-30.3
sysstat-5.0.5-1
xscreensaver-4.18-5.rhel4.9
libaio-0.3.103-3
openmotif21-2.1.30-11.RHEL4.4
Part II: Configuring Linux for Oracle
Now that the Linux software is installed, you need to configure it for Oracle. This section walks through the steps required to configure Linux for Oracle Database 10
g Release 2.
Verifying System Requirements
To verify that your system meets the minimum requirements for an Oracle Database 10
g Release 2 database, log in as root and run the commands below.
To check the amount of RAM and swap space available, run this:
grep MemTotal /proc/meminfo
grep SwapTotal /proc/meminfo
Ex:
# grep MemTotal /proc/meminfo
MemTotal: 1034680 kB
# grep SwapTotal /proc/meminfo
SwapTotal: 1534196 kB
The minimum RAM required is 1024MB, and the minimum required swap space is 1GB. Swap space should be twice the amount of RAM for systems with 2GB of RAM or less and between one and two times the amount of RAM for systems with more than 2GB.
You also need 2.5GB of available disk space for the Oracle Database 10
g Release 2 software and another 1.2GB for the database. The /tmp directory needs at least 400MB of free space. To check the available disk space on your system, run the following command:
df -h
Ex:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 6.8G 1.3G 5.2G 20% /
/dev/sda1 99M 17M 77M 18% /boot
The example shows that the /tmp directory does not have its own filesystem. (It's part of the root filesystem for this guide.) With 5.2 GB available, the root filesystem has just enough space for the installation (2.5 + 1.2 + 0.4 = 4.1GB) with a little room left over.
Create the Oracle Groups and User Account
Next, create the Linux groups and user account that will be used to install and maintain the Oracle Database 10
g Release 2 software. The user account will be called oracle, and the groups will be oinstall and dba. Execute the following commands as root:
/usr/sbin/groupadd oinstall
/usr/sbin/groupadd dba
/usr/sbin/useradd -m -g oinstall -G dba oracle
id oracle
Ex:
# /usr/sbin/groupadd oinstall
# /usr/sbin/groupadd dba
# /usr/sbin/useradd -m -g oinstall -G dba oracle
# id oracle
uid=501(oracle) gid=502(oinstall) groups=502(oinstall),503(dba)
Set the password on the oracle account:
passwd oracle
Ex:
# passwd oracle
Changing password for user oracle.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.
Create Directories
Now create directories to store the Oracle Database 10
g Release 2 software and the database files. This guide adheres to the Optimal Flexible Architecture (OFA) for the naming conventions used in creating the directory structure. For more information on OFA standards, see
Appendix C of the
Oracle Database Installation Guide 10g Release 2 (10.2) for Linux x86.
The following assumes that the directories are being created in the root filesystem. This is done for the sake of simplicity and is not recommended as a general practice. These directories would normally be created as separate filesystems.
Issue the following commands as root:
mkdir -p /u01/app/oracle
chown -R oracle:oinstall /u01/app/oracle
chmod -R 775 /u01/app/oracle
Ex:
# mkdir -p /u01/app/oracle
# chown -R oracle:oinstall /u01/app/oracle
# chmod -R 775 /u01/app/oracle
Configuring the Linux Kernel Parameters
The Linux kernel is a wonderful thing. Unlike most other *NIX systems, Linux allows modification of most kernel parameters while the system is up and running. There's no need to reboot the system after making kernel parameter changes. Oracle Database 10
g Release 2 requires the kernel parameter settings shown below. The values given are minimums, so if your system uses a larger value, don't change it.
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.wmem_default=262144
net.core.rmem_max=262144
net.core.wmem_max=262144
If you're following along and have just installed Linux, the kernel parameters will all be at their default values and you can just cut and paste the following commands while logged in as root.
cat >> /etc/sysctl.conf <<EOF
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.wmem_default=262144
net.core.rmem_max=262144
net.core.wmem_max=262144
EOF
/sbin/sysctl -p
Ex:
# cat >> /etc/sysctl.conf <<EOF
> kernel.shmall = 2097152
> kernel.shmmax = 536870912
> kernel.shmmni = 4096
> kernel.sem = 250 32000 100 128
> fs.file-max = 65536
> net.ipv4.ip_local_port_range = 1024 65000
> EOF
# /sbin/sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.wmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_max = 262144
Run the following commands as root to verify your settings:
/sbin/sysctl -a | grep shm
/sbin/sysctl -a | grep sem
/sbin/sysctl -a | grep file-max
/sbin/sysctl -a | grep ip_local_port_range
/sbin/sysctl -a | grep rmem_default/sbin/sysctl -a | grep rmem_max/sbin/sysctl -a | grep wmem_default/sbin/sysctl -a | grep wmem_max
Ex:
# /sbin/sysctl -a | grep shm
kernel.shmmni = 4096
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shm-use-bigpages = 0
# /sbin/sysctl -a | grep sem
kernel.sem = 250 32000 100 128
# /sbin/sysctl -a | grep file-max
fs.file-max = 65536
# /sbin/sysctl -a | grep ip_local_port_range
net.ipv4.ip_local_port_range = 1024 65000
# /sbin/sysctl -a | grep rmem_default
net.core.rmem_default = 262144
# /sbin/sysctl -a | grep rmem_max
net.core.rmem_max = 262144
# /sbin/sysctl -a | grep wmem_default
net.core.wmem_default = 262144
# /sbin/sysctl -a | grep wmem_max
net.core.wmem_max = 262144
For Novell SUSE Linux releases, use the following to ensure that the system reads the /etc/sysctl.conf file at boot time:
/sbin/chkconfig boot.sysctl on
Setting Shell Limits for the oracle User
Oracle recommends setting limits on the number of processes and open files each Linux account may use. To make these changes, cut and paste the following commands as root:
cat >> /etc/security/limits.conf <<EOF
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
EOF
cat >> /etc/pam.d/login <<EOF
session required /lib/security/pam_limits.so
EOF
For RHEL5, use the following:
cat >> /etc/profile <<EOF
if [ \$USER = "oracle" ]; then
if [ \$SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
umask 022
fi
EOF
cat >> /etc/csh.login <<EOF
if ( \$USER == "oracle" ) then
limit maxproc 16384
limit descriptors 65536
umask 022
endif
EOF
For SLES 9, use the following:
cat >> /etc/profile.local <<EOF
if [ \$USER = "oracle" ]; then
if [ \$SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
umask 022
fi
EOF
cat >> /etc/csh.login.local <<EOF
if ( \$USER == "oracle" ) then
limit maxproc 16384
limit descriptors 65536
umask 022
endif
EOF
Part III:
Installing Oracle
Oracle Database 10
g Release 2 can be downloaded from OTN. Oracle offers a development and testing license free of charge. However, no support is provided and the license does not permit production use. A full description of the license agreement is available on OTN.
The easiest way to make the Oracle Database 10
g Release 2 distribution media available on your server is to download them directly to the server.
Use the graphical login to log in as oracle.
Create a directory to contain the Oracle Database 10
g Release 2 distribution:
mkdir 10gR2_db
To download Oracle Database 10
g Release 2 from OTN, point your browser (Firefox works well) to
http://www.oracle.com/technology/software/products/database/oracle10g/htdocs/10201linuxsoft.html. Fill out the Eligibility Export Restrictions page, and read the OTN License agreement. If you agree with the restrictions and the license agreement, click on
I Accept.
Click on the 10201_database_linux32.zip link, and save the file in the directory you created for this purpose (10gR2_db)—if you have not already logged in to OTN, you may be prompted to do so at this point.
Unzip and extract the file:
cd 10gR2_db
unzip 10201_database_linux32.zip
Install the Software and Create a Database
Log in using the oracle account.
Change directory to the location where you extracted the Oracle Database 10
g Release 2 software. Ex:
$ cd $HOME/10gR2_db
Change directory to Disk1.
Ex:
$ cd database
Start the Oracle Universal Installer.
$ ./runInstaller
- Select Installation Method
- Select Basic Installation
- Oracle Home Location: /u01/app/oracle/product/10.2.0/db_1
- Installation Type: Enterprise Edition (1.3GB)
- UNIX DBA Group: oinstall
- Make sure Create Starter Database is checked
- Global Database Name: demo1
- Enter the Database Password and Confirm Password
- Click on Next
- Specify Inventory Directory and Credentials
- Inventory Directory: /u01/app/oracle/oraInventory
- Operating System group name: oinstall
- Click on Next
- Product-specific Prerequisite Checks
- If you've been following the steps in this guide, all the checks should pass without difficulty. If one or more checks fail, correct the problem before proceeding.
- Click on Next
- Summary
- A summary of the products being installed is presented.
- Configuration Assistants
- The Oracle Net, Oracle Database, and iSQL*Plus configuration assistants will run automatically
- Execute Configuration Scripts
- At the end of the installation, a pop up window will appear indicating scripts that need to be run as root. Login as root and run the indicated scripts.
- Click on OK when finished.
- End of Installation
- Make note of the URLs presented in the summary, and click on Exit when ready.
- Congratulations! Your new Oracle Database 10g Release 2 database is up and ready for use.
