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Notes de mise à jour 5.5

Red Hat Enterprise Linux 5

Nouvelles fonctions et mises à jour majeures

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Red Hat Inc.

Résumé

Les mises à jour mineures de Red Hat Enterprise Linux comprenent des améliorations individuelles, améliorations de la sécurité ainsi que des correctifs de bogues. Les notes de mise à jour de Red Hat Enterprise Linux 5.5 documentent les changements majeurs apportés au système d'exploitation Red Hat Enterprise Linux 5 ainsi que les applications qui accompagnent cette mise à jour mineure. Des notes détaillées sur tous les changements effectués dans cette version mineures sont disponibles dans les Notes techniques.
Les prises en charge du matériel pour la plate-forme Intel Boxboro-EX, le processeur AMD Magny-Cours, et pour le processeur IBM Power 7 font partie des changements les plus importants de la version 5.5 de Red Hat Enterprise Linux. La virtualisation est améliorée et comprend la prise en charge pour multiples cartes 10 GigE SR-IOV et l'utilisation automatique de hugepages pour la mémoire virtuelle de l'invité lorsqu'elle est activée sur le système. Les améliorations d'interopérabilité incluent des mises à jour sur les filtres d'OpenOffice vis-à-vis de Microsoft Office 2007, sur Samba pour compatibilité avec Windows 7, ainsi que la prise en charge du démarrage pour les machines virtuelles utilisant des services PXE basés sur Microsoft.

1. Installation

Red Hat Enterprise Linux 5.5 introduces many bugfixes and enhancements to the system installer (anaconda).
The interactive installer has been enhanced, adding the abilty to specify additional Network File System (NFS) mount options when installing from an NFS source (BZ#493052). Additionally, install sources (e.g. kickstart files) located on password protected File Transport Protocol (FTP) servers can now be retrieved during installation (BZ#505424).
Kickstart

Kickstart provides a way for users to automate a Red Hat Enterprise Linux installation. Using kickstart, a system administrator can create a single file containing the answers to all the questions that would normally be asked during a typical installation.

Kickstart debugging and error reporting has been improved. The installer now retains kickstart scriptlets during debugging, logs standard output (stdout) and standard error (stderr) streams, and logs error messages to anaconda.log (BZ#510636).
Package groups can now be excluded in a kickstart installation in the same manner that individual packages are excluded (BZ#558516). Additionally, the bootloader command now supports the --hvargs parameter, allowing Xen hypervisor arguments to be specified during a kickstart installation (BZ#501438).
Previously, the kickstart installation method offered two options to select all packages @Everything and * (wildcard). As of Red Hat Enterprise Linux 5.5, both of these options have been deprecated. Attempting to use a select all packages option will fail, unless the kickstart file also includes package negation for conflicting packages. Therefore, to install all packages but conflicting packages, the kickstart file must contain:
%packages
@Everything
-@Conflicts
Red Hat Enterprise Linux 5.5 includes the new package sets samba3x, freeradius2, postgres84. These package sets are only available via kickstart during system installation or through yum for existing systems.
Hardware Support

The following device drivers are now supported during installation:

  • the pmcraid driver for PMC Sierra MaxRAID Controller Adapters (BZ#532777)
  • the ibmvfs driver for Power6 Virtual FC devices (BZ#512237).
  • the bfa driver for Brocade Fibre Channel to PCIe Host Bus Adapters (BZ#475707)
  • the be2iscsi driver for ServerEngines BladeEngine 2 Open iSCSI devices (BZ#529442).

Note

For detailed information on installation, the Installation Guide documents how to install Red Hat Enterprise Linux 5.