Red Hat Enterprise Linux 4.9 Beta Announcement

Red Hat is pleased to announce the availability of the latest
*beta* update to Red Hat Enterprise Linux 4, release 4.9 (with
kernel-2.6.9-92.EL) for a family of products including:

- Red Hat Enterprise Linux AS 4 for x86, AMD64/Intel(r) 64,
Itanium Processor Family, S/390, System p and System z
- Red Hat Enterprise Linux ES 4 for x86, AMD64/Intel(r) 64,
and Itanium Processor Family
- Red Hat Enterprise Linux WS 4 for x86, AMD64/Intel(r) 64,
and Itanium Processor Family
- Red Hat Enterprise Linux Desktop 4 for x86 and
AMD64/Intel(r) 64

Red Hat Enterprise Linux 4.9 is in development and therefore the
contents of the beta Red Hat Network (RHN) channels, the implemented
features, and the supported configurations are subject to change
before the release of the final product. The supplied beta packages
are intended for testing purposes only. Remember that this early
access software is not supported and is not intended for production
environments. Benchmark and performance results cannot be published
based on this beta release without explicit approval from Red Hat.
Please note that upgrading from beta release to the GA product is not
supported.

The beta testing period is scheduled to continue through January 28,
2011.

This is the final minor release for Red Hat Enterprise Linux 4. With
this release Red Hat Enterprise Linux 4 will be entering Production 3
phase during which qualified security Errata Advisories of critical
impact, as well as, selected urgent priority bug-fix errata may be
released.

For more information about Red Hat Enterprise Linux Life Cycle please
refer to

https://access.redhat.com/support/policy/updates/errata/

The latest Beta Release Notes are available online as part of the
general documentation. Please see the Documentation section in this
announcement for locating the online Release Notes.

Additional Information
———————-

Additional information is provided below on Accessing the
Software, Documentation, Support, and Mailing Lists.

Enjoy the latest Beta update to Red Hat Enterprise Linux 4.

The Red Hat Enterprise Linux Team

———————————————————————-

Accessing the Software
———————-

Red Hat Enterprise Linux 4.9 Beta is available to existing Red Hat
Enterprise Linux subscribers via Red Hat Network (RHN). You will be
required to log in using a valid RHN account with active entitlements.

Installation of Red Hat Enterprise Linux 4.9 Beta is completed by
upgrading from Red Hat Enterprise Linux 4.8. To update a Red Hat
Enterprise Linux 4.8 installation, first ensure that the system is
subscribed to the 4.9 Beta channel, then use the up2date command:

up2date –update

There is no media kit available for Red Hat Enterprise Linux 4.9 Beta.

Please note that a Beta GPG signing key must be installed prior to
installation of Red Hat Enterprise Linux 4.9 Beta. The key can be
imported using the command:

rpm –import /usr/share/rhn/BETA-RPM-GPG-KEY

Known Issues Related to Installation
————————————

Bugzilla #653424
Broken dependencies in the up2date-4.8.1-33.el4_8.9 package may
result in an update of the up2date package failing. Consequently,
if the up2date-4.8.1-33.el4_8.9, package is installed on a system
the new up2date package must be manually downloaded from the Red
Hat Network and installed using the rpm command.

Bugzilla #494022
Updating all packages from Red Hat Enterprise Linux 4.8 to Red Hat
Enterprise Linux 4.9 on multilib architectures may fail with
dependency issues for the openmpi-libs package. To work around this
issue, use the following commands to update the compat-dapl package
before updating the remaining packages:

up2date compat-dapl
up2date -fu

Errata
——

Red Hat Enterprise Linux 4 errata are available at:

https://rhn.redhat.com/

Errata Advisories describing specific changes in 4.9 are
available online at:

https://rhn.redhat.com/errata/rhel4as-errata.html (AS)
https://rhn.redhat.com/errata/rhel4es-errata.html (ES)
https://rhn.redhat.com/errata/rhel4ws-errata.html (WS)
https://rhn.redhat.com/errata/rh-desktop-4-errata.html (Desktop)

Documentation
————-

Red Hat Enterprise Linux 4 online Release Notes will be available at:

http://www.redhat.com/docs/manuals/enterprise/

The Release Notes are also on your Red Hat Enterprise
Linux 4 installed system in the redhat-release package. However,
for the most up to date version of the release notes, please
refer to the online version.

Support
——-

Red Hat Enterprise Linux customers using the Technical
Account Manager (TAM) Service should raise all issues and
questions with this release using your current Issue
Tracker account. If you’re interested in the Technical
Account Manager Service, visit:

https://access.redhat.com/support/offerings/tam/

All other customers can raise questions and issues through
the normal Red Hat support channels. Details can be found
at:

https://access.redhat.com/support/

Mailing Lists
————-

Red Hat has a public mailing list for communication during
this and all future Red Hat Enterprise Linux 4 programs.

* rhelv4-announce redhat com

A low-volume, moderated, announcement-only mailing list.
Red Hat will use this list to communicate one-way
information about RHEL 4 programs, such as notifications
when releases are available or solicitations for feedback.
Subscribe at:

https://www.redhat.com/mailman/listinfo/rhelv4-announce

* nahant-list redhat com

A public general discussion mailing list for users of
Red Hat Enterprise Linux 4 releases. Subscribe at:

https://www.redhat.com/mailman/listinfo/nahant-list

Red Hat Enterprise Linux 4.9 Beta Release Notes
===============================================

Beta Release Notes for all Architectures
—————————————-

Legal Notice
============

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Fax: +1 919 754 3701

Abstract

This details the Release Notes for Red Hat Enterprise Linux 4.9 Beta

————————————————————————

1. Introduction

2. Installation

3. Driver Updates

4. General Updates

A. Technology Previews

B. Known Issues

B.1. All Architectures

B.2. ia64 Architectures

C. Revision History

1. Introduction
—————-

Red Hat Enterprise Linux minor releases are an aggregation of individual
enhancement, security and bug fix errata. The Red Hat Enterprise Linux
4.9 Release Notes documents the major changes made to the Red Hat
Enterprise Linux 4 operating system and its accompanying applications for
this minor release. Detailed information on the changes that each updated
package provides is available in the Errata Documentation for each
package.

Lifecycle

The Red Hat Enterprise Linux 4 Life Cycle is available at:
https://www.redhat.com/security/updates/errata/

2. Installation
—————-

Installation of Red Hat Enterprise Linux 4.9 Beta is completed by
upgrading from Red Hat Enterprise Linux 4.8. To update a Red Hat
Enterprise Linux 4.8 installation, first ensure that the system is
subscribed to the 4.9 Beta channel, then use the up2date command:

up2date –update

There is no media kit available for Red Hat Enterprise Linux 4.9 Beta.

3. Driver Updates
——————

The kernel-utils package provides microcode_ctl utility code and the
microcode data itself — supplied by Intel — to assist the kernel in
updating the CPU microcode at system boot time. This microcode supports
all current Intel x86- and Intel 64-based CPU models and takes advantage
of the mechanism built-in to Linux that allows microcode to be updated
after system boot. When loaded, the updated microcode corrects the
behavior of various Intel processors, as described in processor
specification updates issued by Intel for those processors. In the Red
Hat Enterprise Linux 4.9 release the kernel-utils package has been
updated with the 2010-09-14 version of Intel’s microcode.

4. General Updates
——————-

Intel Xeon support in OProfile

OProfile is a system-wide Linux profiler, capable of running at low
overhead. It consists of a kernel driver and a daemon for collecting raw
sample data, along with a suite of tools for parsing that data into
meaningful information. OProfile is generally used by developers to
determine which sections of code consume the most amount of CPU time, and
why. OProfile in Red Hat Enterprise Linux 4.9 now supports Intel Xeon
(formerly codenamed Nehalem) processor performance events.

Improved Checksum support in coreutils

Newer Red Hat disk images use the SHA-256 algorithm as the checksum
method. Previously, verifying these checksums on Red Hat Enterprise Linux
4 was not a simple process. Red Hat Enterprise Linux 4.9 provides and
updated coreutils updated package, containing checksum utilities for the
whole SHA-2 family, allowing a user to easily count or verify SHA-224,
SHA-256, SHA-384, and SHA-512 checksums.

KornShell

KSH-93 is the most recent version of the KornShell (ksh) by David Korn of
AT&T Bell Laboratories, a shell programming language upwards-compatible
with sh (the Bourne Shell). In Red Hat Enterprise Linux 4.9, ksh is
updated to the upstream release version ksh93t+.

Firefox

Red Hat Enterprise Linux 4.9 features version 3.6.4 of the Mozilla
Firefox open source web browser. Refer to the Firefox 3.6 Release Notes
and Firefox 3.6.4 Release Notes for further details on the bug fixes and
enhancements provided by this update.

SystemTap

SystemTap is a tracing and probing tool that allows users to study and
monitor the activities of the operating system (particularly, the kernel)
in fine detail. It provides information similar to the output of tools
like netstat, ps, top, and iostat; however, SystemTap is designed to
provide more filtering and analysis options for collected information.
SystemTap in Red Hat Enterprise Linux 4.9 has been updated to version
1.3. Most notably, this update provides support for the newer kprobe
capabilities.

A. Technology Previews
———————–

Technology Preview features are currently not supported under Red Hat
Enterprise Linux 4.9 subscription services, may not be functionally
complete, and are generally not suitable for production use. However,
these features are included as a customer convenience and to provide the
feature with wider exposure. Customers may find these features useful in
a non-production environment. Customers are also free to provide feedback
and functionality suggestions for a technology preview feature before it
becomes fully supported. Erratas will be provided for high-severity
security issues. During the development of a technology preview feature,
additional components may become available to the public for testing. It
is the intention of Red Hat to fully support technology preview features
in a future release. For more information on the scope of Technology
Previews in Red Hat Enterprise Linux, please view the Technology Preview
Features Support Scope page on the Red Hat website.

OpenOffice 2.0

OpenOffice 2.0 is now included in this release as a Technology Preview.
This suite features several improvements, including ODF and PDF
functionalities, support for digital signatures and greater compatibility
with open suites in terms of format and interface. In addition to this,
the OpenOffice 2.0 spreadsheet has enhanced pivot table support, and can
now handle up to 65,000 rows. For more information about OpenOffice 2.0,
please refer to
http://www.openoffice.org/dev_docs/features/2.0/index.html .

B. Known Issues
—————-

B.1. All Architectures

Bugzilla #653424
Broken dependencies in the up2date-4.8.1-33.el4_8.9 package may
result in an update of the up2date package failing. Consequently,
if the up2date-4.8.1-33.el4_8.9, package is installed on a system
the new up2date package must be manually downloaded from the Red
Hat Network and installed using the rpm command.

Bugzilla #459785
Japanese language JP106 keyboards will not function correctly when
booting into Rescue Mode on Red Hat Enterprise Linux 4.9.

Bugzilla #494022
Updating all packages from Red Hat Enterprise Linux 4.8 to Red Hat
Enterprise Linux 4.9 on multilib architectures may fail with
dependency issues for the openmpi-libs package. To work around this
issue, use the following commands to update the compat-dapl package
before updating the remaining packages:

up2date compat-dapl
up2date -fu

Bugzilla #443137
In a typical HA-RAID (High Availability RAID) two-system
configuration, two SAS (Serial Attached SCSI) adapters are plugged
in to two systems that are connected to a shared SAS disk drawer.
However, it is currently possible to set the Preferred Dual Adapter
State attribute to Primary on both SAS adapters, which may trigger
a race condition and cause infinite failover between the adapters.
To prevent this error, if the Preferred Dual Adapter State
attribute of one SAS adapters is set to Primary, ensure that the
other is set to None.

Known Issue: Bugzilla #499457
As a result of N_Port ID Virtualization (NPIV) support added in Red
Hat Enterprise Linux 4.8 on s390x architectures, the
permanent_port_name sysfs attribute is no longer included. This
attribute was used (primarily for debugging purposes) to
differentiate the use of NPIV Logical Unit Numbers (LUNs) from
within Linux. In the absence of this attribute, system
administrators should refer to the Hardware Management Console /
Support Element (HMC/SE) to find the virtual port address on an
NPIV-enabled system.

Bugzilla #484117
The Logical Volume Manager in Red Hat Enterprise Linux 4.9 reports
file descriptor leaks, resulting in the following error returned to
the installation output:

File descriptor NUM (socket:XXXX) leaked on lvm invocation.

This message can be safely ignored.

Bugzilla #468097
When installing Red Hat Enterprise Linux 4 through an Network File
System (NFS) server, the installer is unable to correctly close the
NFS mount points. This might cause the NFS server to misbehave. In
these cases Red Hat suggests the use of an HTTP server for
installations.

Bugzilla #468097
On systems where the BIOS is able to do both legacy (acpiphp) and
native (pciehp) PCI hotplugging, it is necessary for the
administrator to choose a preferred method and explicitly prevent
Red Hat Enterprise Linux 4 from loading the module for the
undesired method. This is done by blacklisting the undesired module
in /etc/modprobe.conf.

Bugzilla #449648
Red Hat discourages the use of quota on EXT3 file systems. This is
because in some cases, doing so can cause a deadlock. Testing has
revealed that kjournald can sometimes block some EXT3-specific
callouts that are used when quota is running. As such, Red Hat does
not plan to fix this issue in Red Hat Enterprise Linux 4, as the
modifications required would be too invasive. Note that this issue
is not present in Red Hat Enterprise Linux 5.

Bugzilla #452578
The Desktop Sharing connection icon displays its context menu when
you double-click it, not when you right-click it. All other icons
display their context menus when you right-click on them.

Bugzilla #451873
If the ib_ehca InfiniBand driver is loaded in port auto-detection
mode (using module parameter nr_ports=-1), the IP-over-InfiniBand
network interfaces (ibX) might become available too late. When this
occurs, the ifup ibX command issued from the openibd startup script
will fail; consequently, the ibX interface will not become
available. When this occurs, use the command rcnetwork restart to
fix the problem.

Bugzilla #451873
In the IBM Redbook “Implementing InfiniBand in IBM System p
(SG247351) manual, Table 6-3 (on page 220 of the PDF version)
describes debug code bit definitions, where several HCA error
indicator bits are also described. Note that with eHCA2 adapters,
bits 46 and 47 of these error indicator bits might return false
positives.

Bugzilla #366961
On HP ICH10 workstations, audio is only enabled through the front
3.5mm jacks. As such, to receive any audio output or use recording,
you should plug in your headphones, speakers, or microphones to the
front jacks. At present, the rear jacks, internal speaker, and
master volume for this workstation do not work.

Bugzilla #429727
With this update, the default PCI detection and ordering mode for
the following models have changed:

* HP Proliant DL 580 G5

* HP Proliant DL 385 G2

* HP Proliant DL 585 G2

These models use a device scanning and enumeration mode which is
not the default for Red Hat Enterprise Linux 4 or 5. The mode used
by these HP Proliant models could result in add-on cards being
detected and added prior to onboard/internal devices. This
unexpected ordering could cause difficulties when installing new
instances of Red Hat Enterprise Linux, adding hardware, and
maintenance. The numbering of network interface cards (NIC) for the
aforementioned HP Proliant models may change when they are updated
with the Red Hat Enterprise Linux 4.7 kernel. The installer changes
NIC numbering if the HWADDR=MAC ADDRESS parameter is not defined in
/etc/sysconfig/network-scripts/ifcfg-eth[X] for each installed
NICs. As such, Red Hat recommends that you ensure this parameter is
defined in order to avoid any problems arising from an unexpected
NIC enumeration. In addition, to avoid any NIC enumeration changes
after updating these HP Proliant models to Red Hat Enterprise Linux
4.7, add the kernel boot parameter pci=nobfsort to
/boot/grub/grub.conf.

Bugzilla #232499
When a volume group contains a mirror or snapshot, issuing the
lvchange command with a volume group parameter may result in the
following error messages:

Unable to change mirror log LV fail_secondary_mlog directly
Unable to change mirror image LV fail_secondary_mimage_0 directly
Unable to change mirror image LV fail_secondary_mimage_1 directly

These messages can be safely ignored.

Bugzilla #441870
Dell PowerEdge SC1435s systems may hang during boot-up. To avoid
this, edit the terminal line in grub.conf and replace the string
serial console with console serial.

Bugzilla #456533
The updated ixgbe driver does not support the Intel 82598AT (Copper
Pond 10GbE).

Bugzilla #454872
Red Hat Enterprise Linux 4.9 can detect online growing or shrinking
of an underlying block device. However, there is no method to
automatically detect that a device has changed size, so manual
steps are required to recognize this and resize any file systems
which reside on the given device(s). When a resized block device is
detected, a message like the following will appear in the system
logs:

VFS: busy inodes on changed media or resized disk sdi

If the block device was grown, then this message can be safely
ignored. However, if the block device was shrunk without shrinking
any data set on the block device first, the data residing on the
device may be corrupted. It is only possible to do an online resize
of a filesystem that was created on the entire LUN (or block
device). If there is a partition table on the block device, then
the file system will have to be unmounted to update the partition
table.

Bugzilla #479467
There is a known memory leak with the res_n* family of resolver
routines (i.e. res_nquery, res_nsearch and res_nmkquery). Programs
that use these functions will leak memory over time. It has been
fixed in newer versions of glibc, however, the fix is too invasive
to be applied to Red Hat Enterprise Linux 4. Programs that use
these functions may need to be restarted occasionally to free
memory.

Bugzilla #452513
The number of devices that can be handled during installation of
Red Hat Enterprise Linux 4 depends on the size of the installation
initrd image. Therefore, in situations where there are many devices
attached to a machine (such as heavily populated Fibre Channel
setups) installation will not be possible unless number of visible
devices is reduced.

Bugzilla #492371
During installation anaconda may not remove all the Logical Volume
Manager (LVM) metadata that exists on a system prior to
installation. This extra metadata may cause LVM tools to report
missing volume groups or logical volumes after installation. To
work around this issue, remove the stale LVM metadata after the
installation is complete.

Bugzilla #481190
multipath does not silence the error messages printed by any of
it’s callout programs. Therefore, if multipath is run when paths
are down, various error messages may be displayed. The messages
that are displayed depend on the specific callout programs that
multipath is using. For example, if multipath is run while there
are failed scsi devices, scsi_id will print

<H>:<B>:<T>:<L>:Unable to get INQUIRY vpd 1 page 0×0.
<H>:<B>:<T>:<L>:sg_io failed status 0×0 0×1 0×0 0×0

Or, if multipath -ll is run while an EMC CLARiiON is down, the
mpath_prio_emc priority callout will print query command indicates
error

B.2. ia64 Architectures

Bugzilla #453033
On some SGI Altix systems that feature the IOC4 multi-function
device, you may encounter problems when using attached IDE devices
(such as CD-ROM drives). This is caused by a bug in the sgiioc4 IDE
driver, which prevents some devices from being detected properly on
system boot. You can work around this bug by manually loading the
driver, which in turn allows attached IDE devices to be detected
properly. To do so, run the following command as root:
/sbin/modprobe sgiioc4

C. Revision History
——————–

Revision History

Revision 1.0

Tue Dec 07 2010

Ryan Lerch

Added Release Notes Updates for the General Availability (GA)

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