RHEL5.3正式版发布了 2009/1/21

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                                                                RHEL5.3正式版终于发布了，赶快注册个RHN账号去下载吧建议：重新注册一个RHN账号，不要使用以前已经申请过RHEL试用的RHN账号再去申请，成功率很低，全新注册的RHN账号申请评估时基本上几分钟之内就会把下载的账号发给你。
[rhelv5-announce] Red Hat Enterprise Linux 5.3 GA Announcement
Red Hat is pleased to announce the availability of 5.3
(kernel-2.6.18-128.el5) for the Red Hat Enterprise Linux 5family of products including:
  - Red Hat Enterprise Linux 5 Advanced Platform for x86,    AMD64/Intel(r) 64, Itanium Processor Family, System p    and System z  - Red Hat Enterprise Linux 5 Server for x86,    AMD64/Intel(r) 64, Itanium Processor Family, System p    and System z  - Red Hat Enterprise Linux 5 Desktop for x86 and    AMD64/Intel(r)
Enhancements------------
A technical overview that describes the major enhancementscan be found at:
  http://www.redhat.com/rhel/server/resource_center/
The following list summarizes numerous improvements to thisrelease:
* Virtualization Enhancements  + Support for up to 126 CPUs in the x86_64 Xen-based    Hypervisor (up to 32 CPUs per virtual server)  + Support for up to 1TB memory per host on x86_64    (up to 80GB per virtual server)  + Increased number of dynamic IRQs for x86_64 to allow for    more guests on large systems  + Support for more than 16 disk devices per guest  + Added Virtio drivers for use of Red Hat Enterprise Linux 5    as a guest on KVM-based hypervisors  + Automatically determine correct parameters for large memory    machines.  The domain 0 is automatically restricted to 32GB,    but the hypervisor sees the full amount of memory in the    machine  + Support for Intel Extended Page Tables (EPT) which delivers    higher performance in Fully Virtualized environments  + Support for 2MB backing page tables on x86_64  + Support for more than 4 NICs per guest  + Blktap statistics added  + Fixes made to properly reserve kdump memory for Xen and    to provide crash with needed address  + Fixed timer problems after migration  + Added Intel VT-i2 support for new ia64 processor  + Fixed lengthy network outage after live migrations  + Xen log file rotation  + Xenstore database moved to tmpfs  + Xen paravirtualized drivers included for fully-virtualized    (FV) Red Hat Enterprise Linux 5 guest kernels. Thus the    xenpv-kmod package no longer needs to be added to Red Hat    Enterprise Linux 5 FV kernels for paravirtualized (Xen)    disk and network support  + Support for vmcoreinfo for IA64 Xen
* Cluster Improvements  + Cluster mirror support (2-leg mirrors only)  + GFS2 parallel cluster file system is supported (previously    a Technology Preview)  + Fencing improvements:    - Added SSH support to the DRAC, Blade Center, iLO, and      Egenera fencing agents    - Added support for WTI RSM8R4 and WTI MPC-8H power      controllers to the WTI fencing agent
* Desktop Enhancements  + NetworkManager 0.7    - Mobile broadband for select hardware    - Static IP support    - Networking before login    - Much faster connection times    - Connection sharing/multiple active connections  + Laptop support    - Backported keyboard quirks  + Updated graphics drivers    - ATI Radeon r400, r500, and r600 chipsets are fully      supported for mode setting (previously a Technology      Preview)    - ATI Radeon r400 and r500 now support 2D acceleration      (previously a Technology Preview)    - Intel G4x/GM4x (Cantiga and EagleLake) support mode      setting and 2D acceleration    - Intel GMA950, 2D only    - Expanded Matrox G200 coverage
* System Services Enhancements  + Rebased cups (print server), now with full Kerberos support  + Rebased ksh, lm-sensors, net-snmp, OpenIPMI, openldap,    openmotif, python-urlgrabber, rpm, tog-pegasus, vnc, yum,    yum-utils
* Developer Platform  + OpenJDK    - First fully open and compatible JDK included in RHEL    - Based on OpenJDK (http://openjdk.java.net/) and the      IcedTea GNU/Linux project (http://icedtea.classpath.org/)    - Tested against the Java SE 1.6 Technical Compatibility      Kit with zero failures    - java-1.6.0-openjdk is only available for the x86 and      x86_64 architectures
* Tool Enhancements  + SystemTap    - Initial implementation of user space tracing (user static      markers and stack unwinding coming soon)    - Remote script compiling (secure version coming soon)    - New Beginner's Guide    - Improved tapset organization and documentation  + GDB Debugger    - Rebased, now based on version 6.8 (previously based on      version 6.5)    - Multiple location breakpoints for C++ templates,      constructors, inlined functions, etc.
* Encryption Enhancements  + Root and swap encryption support in the installer    - Hibernate / resume support with encrypted disks
* Installer Enhancements  + 802.1q VLAN tagging support for kickstart  + iSCSI installation and boot support  + PCMCIA CompactFlash devices  + dmraid RAID0, RAID1, and RAID5 support  + Ability to install Xen and KVM guests  + Automatic recognition of correctly-labeled driver update    devices  + Installation via DVD using SCSI on System z  + Ability to identify physical NIC by flashing LEDs  + 10Gbps Ethernet driver support through niu driver  + Cisco 10G Ethernet support through enic driver  + Cisco FCoE HBA support through fnic driver  + Updated DHCPv6 (Client, Server and Relay Agent) support for    RFC3315, RFC3646 and RFC3736  + Emulex FCoE HBA support through lpfc driver  + QLogic FCoE HBA support through qla2xxx driver
* Security Enhancements  + Authentication and Identity    - pkinit clients can now be configured to use keys for      client certificates which may not contain      Kerberos-specific extensions    - pkinit interoperability fixes    - krb5 now applies the correct file context to database      lock files    - krb5 servers no longer log everything twice by default    - nss_ldap now configured with support for paged results      extension  + SELinux enablement of new NetworkManager and audit    functionality  + Improved Audit and Logging    - TTY input audit support
* Windows Interoperability  + Rebased samba from 3.0.28 to 3.0.32 which supports Windows    Vista and 2008 and various fixes for DC functionality    (interoperability with Citrix and Domain trusts)
* Kernel Improvements  + New features include:    - Added private futexes support    - Added preempt-notifiers implementation    - Included tracepoint/markers infrastructure    - Added response oriented wake up behavior to scheduler    - Fixed gettimeofday for HPET, PMTimer, TSC    - Updated NMI infrastructure to latest    - Enabled deep C-states for idle efficiency for Intel      Tylersburg chipset    - Added extend MCE banks support for Intel Dunnington,      Nehalem processors    - Added ACPI T-state support (processor throttling control)    - Added AMD IOMMU driver support    - Enhanced Partition Statistics    - Enabled CIFS' DFS support and update CIFS to latest    - Updated autofs4 to the latest    - Increased stack size for ia32 application    - Added kprobe-booster and return probe-booster support    - Added PCI domain support    - Added RAID 4/5/10 in dmraid  + Hardware support enhancements:    - Drivers added:        ath5k, enic, fnic, hp-ilo, inet_lro, iwl5000, neic,        niu, r8169, rt2x00, rtl818x, uvcvideo, virtio    - Drivers updated:        3w-9xxx, 3w-xxxx, aacraid, aic94xx, alsa, arcmsr,        bcm43xx, bnx2, bnx2x, cciss, chelsio, cpufreq, cxgb3,        e1000, e1000e, fusion, hpilo, ibmvscsi, igb, ieee80211,        ipw2x00, iwl4965, iwlwifi, ixgbe, lpfc, mac80211,        megaraid_sas, mptscsi, myri10ge, netxen-nic, OpenIB,        powernow_k8, qla2xxx, qla3xxx, qla4xxx, qla84xx, sata,        sata_svw, tg3, zd1211rw
Technology Previews-------------------
Technology Preview features are included in Red Hat EnterpriseLinux to provide the features with wide exposure with the goalof supporting these features in a future release of Red HatEnterprise Linux.  Technology Preview features are not supportedunder Red Hat Enterprise Linux 5.3 subscription services and maynot be functionally complete.  Red Hat welcomes customerfeedback and suggestions for Technology Previews.  Advisorieswill be provided for high-severity security issues in TechnologyPreview features.
The following Technology Preview features are new or enhanced inRed Hat Enterprise Linux 5.3.  See the Red Hat Enterprise Linux5.3 Release Notes for more information.
  - AIGLX including X server and updated Mesa package  - Compiz composition manager  - dm-multipath install  - Dogtail gui  - Limited eCryptfs support    + Added eCryptfs support to kernel    + Added authentication in crypto library to kernel  - ext4 file system / e4fsprogs  - Firewire  - FreeIPMI Intelligent Platform Management System  - GCC 4.3    + Compiler based on gcc 4.3    + OpenMP 3.0 conformance  - Indic languages: Assamese, Kannada, Sinhalese, Telugu  - Kerberos security for CIFS  - Kernel DFS support for CIFS  - ktune: a service that sets several kernel tuning parameters    to values suitable for specific system profiles  - Remote audit logging via unencrypted connection  - Software FCoE on standard NICs  - Support for 32-bit paravirtualized (PV) guests on    64-bit AMD64/Intel(r) 64 hosts  - SystemTap utrace support for user space tracing  - Trusted Computing Group (TCG) / Trusted Platform Module    (TPM) Support    + Included the TCG stack    + Included the Trousers TSS stack    + Added trust computing/trust platform module in kernel and      tpm-tools    + boot-loader support will be considered for inclusion in a      future release  - VMware ESX cluster fencing agent
GPL Version 3 Licensed Components---------------------------------
The following packages in Red Hat Enterprise Linux 5.3 arelicensed under GNU General Public License Version 3 (GPLv3):
  * gcc43-4.3.2-7.el5  * gcc43-c++-4.3.2-7.el5  * gcc43-gfortran-4.3.2-7.el5  * gdb-6.8-23.el5
Anaconda Upgrades-----------------
While anaconda's "upgrade" option will perform an upgrade fromRed Hat Enterprise Linux 4.7 or 5.2 to Red Hat Enterprise Linux5.3, there is no guarantee that the upgrade will preserve allof a system's settings, services, and custom configurations.For this reason, Red Hat recommends that you perform a freshinstallation rather than an upgrade.
Prior to Red Hat Enterprise Linux 5.3, the kernel modulesproviding support for GFS2 were delivered separately.  As ofthis release, the GFS2 kernel modules are now delivered integralto the kernel RPM.  Due to Bug 465883, systems which had RPMsproviding the GFS2 kernel modules installed will incorrectlyload the older modules after updating to the Red Hat EnterpriseLinux 5.3 kernel.  To ensure correct operation of GFS2, manuallyremove the previous GFS2 Technology Preview kernel module RPMsprior to installing the new kernel.  For example, on i386:
# rpm -e kmod-gfs2.i686 kmod-gfs2-PAE.i686 kmod-gfs2-xen.i686
Enjoy the Red Hat Enterprise Linux 5.3 release.
Sincerely,
The Red Hat Enterprise Linux Team
----------------------------------------------------------------------
Accessing the Software----------------------
Red Hat Enterprise Linux 5.3 is available to existingRed Hat Enterprise Linux subscribers via RHN.  Thechannels will automatically appear in your account.Installable binary and source ISO images are availablevia Red Hat Network at:
  https://rhn.redhat.com/network/software/download_isos_full.pxt
You will be required to log in using a valid RHN accountwith active entitlements.
Red Hat Enterprise Linux 5.3 errata are available at:
  https://rhn.redhat.com/
Documentation-------------
Release notes for this release are available on theRed Hat Enterprise Linux 5 site at:
  http://www.redhat.com/docs/manuals/enterprise/
The Release Notes are also on your Red Hat EnterpriseLinux 5 installed system in the redhat-release-notespackage.
Bug Reporting-------------
Red Hat Enterprise Linux customers using the TechnicalAccount Manager (TAM) Service should raise all issues andquestions with this release using your current Issue Trackeraccount.  If you're interested in the Technical AccountManager Service, visit:
  https://www.redhat.com/support/offerings/technical.html
All other customers can raise questions and issues throughthe normal Red Hat support channels.  Details can be foundat:
   https://www.redhat.com/support/process/
Defects can be reported using Red Hat's Bugzilla.  To reportand query for defects in this release, you need a Bugzillaaccount with access to the "Red Hat Enterprise Linux 5"product.
Please be advised that Bugzilla is not a support tool andthere is no Service Level Agreement (SLA) for defectsreported.  Red Hat therefore strongly urges customers toreport production issues to their respective Red Hat supportcontact instead of Bugzilla.
To report a bug via Bugzilla:
1. Login to the Bugzilla home page at http://bugzilla.redhat.com.   If you don't have an existing account, simply create one by   going to this page:
   https://bugzilla.redhat.com/createaccount.cgi
2. On the Bugzilla home page, choose the "New" tab.  Proceed to   Step 3, "Choosing Your Product" by clicking that button at   the bottom of the page.
3. Choose Product "Red Hat Enterprise Linux 5".
4. Choose Version "5.3".
5. Choose the component against which you wish to report a   problem, such as kernel, glibc, etc.  If you do not know   the component or want to file a bug against the general   product, choose "distribution" as the component.
6. Choose the platform, such as: "All", "x86_64", etc.
7. Provide the information about the problem you're   reporting by entering information in the appropriate   fields.  In the Summary field, provide a clear and   descriptive abstract of the issue.  In the Description   field, provide the full package versions of any   components you are experiencing problems using.
8. Check to make sure that all information is accurate and   click the "Commit" button to submit your problem report.
Mailing Lists-------------
Red Hat has a public mailing list for communication duringthis and all future Red Hat Enterprise Linux 5 programs.
* rhelv5-announce redhat com
    A low-volume, moderated, announcement-only mailing    list.  Red Hat will use this list to communicate    one-way information about RHEL 5 programs, such as    notifications when releases are available or    solicitations for feedback.  Subscribe at:
      https://www.redhat.com/mailman/listinfo/rhelv5-announce
* rhelv5-list redhat com
    A public general discussion mailing list for users    of Red Hat Enterprise Linux 5 releases.  Subscribe    at:
      https://www.redhat.com/mailman/listinfo/rhelv5-list
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