Requisitos sistema operativo

Required Packages and Patches

Oracle Linux 5*
Red Hat Enterprise Linux 5* (base and Advanced Platform) Update 1 (Oracle Linux 5.1) or higher is required

Update 1 (RHEL 5.1) or higher is required.
The following packages are not part of the Oracle Linux 5 or RHEL 5 distribution media and must be installed manually1:
• compat-libstdc++-egcs-1.1.2-1
• compat-libcwait-2.1-1
•compat-oracle-el5-1.0-5
• openmotif21-2.1.30-11.EL5
Ensure that the following are installed from the Oracle Linux 5 or RHEL 5 distribution media:
• binutils-2.17.50.0.6-5.el5
• libXp-1.0.0-8.1.el5
• compat-glibc-2.3.4-2.26
• compat-libgcc-296-2.96-138
• compat-libstdc++-33-3.2.3-61
• compat-db-4.2.52-5.1
Note :
1: Download from http://oss.oracle.com/projects/compat-oracle/files/Enterprise_Linux/(for both Oracle Linux 5 and RHEL 5)

All Linux x86 and Linux x86-64 (AMD64/EM64T) Operating Systems
Oracle Linux 4, Oracle Linux 5, Red Hat Enterprise Linux AS/ES 2.1, Red Hat Enterprise Linux AS/ES 3, Red Hat Enterprise Linux AS/ES 4, Red Hat Enterprise Linux 5, SUSE Linux Enterprise Server 8, SUSE Linux Enterprise Server 9, SUSE Linux Enterprise Server 10 all have dependencies on thefollowing components. Dependencies that pertain only to a subset of Linux x86 and x86-64 (AMD64/EM64T) operating systems are listed under separate headings.
Kernel Requirements
The following table lists the required minimum kernel versions (to determine version, enter: $ uname -r).
Operating System Kernel
Oracle Linux 4 2.6.9-42.0.0.0.1.EL
Oracle Linux 5 2.6.18-8.EL
Red Hat Enterprise Linux AS/ES2.1 2.4.9-e.x (where x is > than 12)
Note: In accordance with the Red Hat Enterprise Linux Errata Support Policy, the 7 year life-cycle of Red Hat Enterprise Linux AS/ES 2.1 has ended effective June 1, 2009. For instructions on migrating Red Hat Enterprise Linux 2.1 or 3 to Red Hat Enterprise Linux 4, see My Oracle Support Document 303237.1.
Red Hat Enterprise Linux AS/ES 3 2.4.21-9.EL(required) 2.4.21-20.EL (recommended)
Red Hat Enterprise Linux AS/ES 4 2.6.9-5.EL
Red Hat Enterprise Linux 5 2.6.18-8.EL
SUSE Linux Enterprise Server 8 2.4.21-138
SUSE Linux Enterprise Server 9 2.6.5-7.97
SUSE Linux Enterprise Server 10 2.6.16.21-0.8

Domain Name System (DNS) Resolver Parameters
Two Domain Name System (DNS) resolver parameters (timeout and attempts) are set by default to lowvalues when the operating system is installed. These low values may cause attempted network connections to an Oracle database to fail. If this happens, add or update the following entries to these minimum settings in the /etc/resolv.conf file on each server node:
options attempts:5
options timeout:15


Oracle Linux 4 and 5, Red Hat Enterprise Linux 3, 4 and 5 and SUSE Linux Enterprise Server8, 9 and 10
This section describes requirements that apply only to Oracle Linux 4 and 5, Red Hat Enterprise Linux 3, 4 and 5 and SUSE Linux Enterprise Server 8, 9 and 10.
Verifying Host Names
Use the following to verify host name settings:
For Oracle Linux 4 and 5, Red Hat Enterprise Linux 3, 4 and 5:
1. Verify that the /etc/hosts file is formatted as follows:
2. 127.0.0.1localhost.localdomain localhost
.
3. Verify that the /etc/sysconfig/network file is formatted as follows:
4. HOSTNAME=.
5.
6. If the /etc/sysconfig/networking/profiles/default/network file exists, remove it.
7. If you changed any files in the previous steps, restart the system.

Modifying the Number of Open File Descriptors
Open the /etc/security/limits.conf file and change the existing values for"hard" and "soft" parameters as follows. Restart the system after making changes.
For Oracle Linux 4 and 5, Red Hat Enterprise Linux 3, 4 and 5 and SUSE Linux Enterprise Server 9 and 10:
* hard nofile 65535
* soft nofile 4096
For SUSE Linux Enterprise Server 8:
* hard nofile 32768
* soft nofile 32768

Modifying the Port Range Values
Open the /etc/sysctl.conf file and change the value of...