Enterprise Linux  Release Notes

  (Release 5 )


 This document covers following topics regarding Enterprise Linux 5

New GPG Key

     A new gpg key is used to sign Enterprise Linux 5 packages. This key is shipped as part of isos and will be installed  in /etc/pki/rpm-gpg directory.This gpg key is also available at http://oss.oracle.com/el5/RPM-GPG-KEY-oracle.  Enterprise Release 4  gpg key (RPM-GPG-KEY-EL4) will also be installed in  /etc/pki/rpm-gpg directory.

Changes from Upstream Release

The following rpms are modified from the upstream RPMS. All changes are trademark and look/feel related unless otherwise noted below under the specific RPM.

Path of the Distribution changed from RedHat to Enterprise on the install CDs.
            GPG key releated changes
           Updated firmware from Intel             ocfs2 related fix.
Following packages are removed

           Replaced by oracle-logos
           Replaced by enterprise-release
           Replaced by enterprise-release-notes-5Server
            Replaced by up2date
             Replaced by up2date-gnome               Replaced by up2date               Replaced by up2date               Replaced by up2date Following documentation packages are removed

New Packages added

  Enterprise Linux  has following additional  packages


Kernel  and Driver Updates

This section covers  significant changes in kernel in this release.

 Bug Fixes  added  by Oracle

Enterprise Linux 5 ships two set of kernel packages. One with  bug fixes added by Oracle and another one without any changes from upstream kernel.  Default installation installs kernel whthout fixes added by Oracle. kernel with  bug fixes added by Oracle needs to be manually installed.  Following are the steps to install this kernel

1. mount Enterprise Linux 5 CD 1 or DVD

2. copy the rpms from <mount_pont>/Server/oracle_updated to your system

3. install the required  kernel using the rpm command,
             e.g. rpm -ihv kernel-2.6.18-

Fixes/Additions from upstream distribution provider

             These replace netdump and kdump of Enterprise Linux 4

Technology Preview Features

Following Technology Preview features are currently not supported under  Enterprise Linux  5 , may not be functionally complete.

These features are  not suitable for production use. However, these features are included  to provide the feature with wider exposure.

Unbreakable Linux Support

Enterprise Linux offers an option to keep your operating system upto date with latest operating system patches using up2date.  To be able to  use this option you need to have Unbreakable Linux  Support. For more information  please visit http://linux.oracle.com

Note: Prior to using up2date, import the RPM-GPG-KEY for Enterprise Linux:

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY


If updating a large number of rpms (e.g. > 1000), be sure to set the 'open files' limit to a higher value to avoid up2date failing with the following error (due to hitting the open files limit):
python: ./rpmio_internal.h:525: c2f: Assertion `fd && fd->magic == 0x04463138' failed.

Use this to increase the limit for the process (run as root):

# ulimit -n 4096 (default is 1024)