X/OS LINUX 5.1 — RELEASE NOTES — x86_64 VERSION

   Copyright © 2007 X/OS Experts in Open Systems BV

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INTRODUCTION

   X/OS Linux 5 is a Free and Open Source Linux distribution derived from the
   freely available source rpm packages of Red Hat Enterprise Linux 5 (RHEL5).

   X/OS has spent considerable effort to avoid using Red Hat's trademarks in
   any way that would imply an association with or sponsorship by Red Hat. X/OS
   Linux is not produced, maintained or supported by Red Hat.

CONTENTS

   The  X/OS Linux 5.1 package set for x86_64 systems is identical to the
   combined package set from the x86_64 release of RHEL 5.1 Client and RHEL 5.1
   Server, with the following exceptions:
     * The following packages have been renamed: redhat-logos (xos-logos),
       redhat-lsb (xos-lsb), redhat-release (xos-release), redhat-release-notes
       (xos-release-notes), and redhat-rpm-config (xos-rpm-config).
     * All Red Hat Network (RHN) related packages are not included with X/OS
       Linux.
     * A few updates released for RHEL 5.1 have been included.
     * The yum package has been updated to version 3.2.1, the version included
       with the RHEL 5.1 beta release, as the yum version (3.0.1) that was
       included with the final version of RHEL 5.1 contains serious problems.

   Besides these additions and name changes, the following modifications were
   made to the original packages:
     * An  installclass  has  been  added to anaconda, supporting various
       alternatives for installing X/OS Linux 5: using the full package set
       (default) or using only a selected set of repositories, either manually
       or by using a RHEL5 installation number (see below).
     * Red Hat trademarks and logos have been removed, particularly affecting
       package redhat-logos (now called xos-logos). Various other packages also
       required minor modifications to remove references to Red Hat.
     * Dependencies of renamed packages have been changed.
     * Several small changes to spec files have been made, to remove bugs or
       fix other issues. When applicable, the corresponding Bugzilla ticket
       numbers are listed in the changelog entries.
     * An extension has been added to the package release number, to avoid any
       confusion with the RHEL versions of the packages.

   The changelog entries in the X/OS Linux packages contain a detailed list of
   all modifications.

RHEL-COMPATIBLE PACKAGE SELECTION

   RHEL5 comes in 2 variants, Client and Server, each containing a number of
   package  repositories.  The  Client  variant  has repositories Client,
   Workstation, and VT, and the Server variant has repositories Server, VT,
   Cluster, and ClusterStorage. X/OS Linux comes in only one variant but offers
   the user the possibility to use only a selected set of repositories during
   the installation. Using this feature, the installation procedure and the set
   of installed packages is fully compatible with the installation of a Client
   or Server variant of RHEL using a Red Hat installation number, to access a
   predefined set of repositories.

   To enable this feature, the keyword "askkey" has to be specified at the
   boot-prompt of the installer in which case, an installation key will be
   asked during installation. This key can be either a valid Red Hat Enterprise
   Linux  installation  number or a X/OS Linux-specific key, containing a
   combination of letters representing the set of repositories to use: Client
   (C), Workstation (W), Server (S), Virtualization (V), Cluster (U), Cluster
   Storage (G), or all package sets (A). For automatic installs, the key can
   also be specified with the "key" option of kickstart either specifying a
   valid Red Hat Enterprise Linux installation number or a X/OS Linux-specific
   key.

COMPARISON WITH X/OS LINUX 4

   When comparing X/OS Linux 5 with X/OS Linux 4, a large number of packages
   has been added. A few packages have been replaced or removed. Most other
   packages have been upgraded to a new version. Especially note the following
   changes:
     * Package management with apt and synaptic is not supported anymore.
     * Like in RHEL5, up2date is no longer supported. Package management is now
       done with yum, pirut, or pup.
     * See    the    Red   Hat   Enterprise   Linux   5   release   notes
       http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/release-note
       s/RELEASE-NOTES-U1-x86_64-en.html for more detailed release information
       about various packages.