Red Hat has pushed out the first public beta of Red Hat Enterprise Linux 5, an upgrade to its operating system that includes virtualization technologies intended to help companies get more use from their hardware.The final version of the product is due to ship by year\u2019s end, although it was unclear this week if Red Hat will meet that target. RHEL 5 Beta 1, which was released Friday, was originally due to ship in July, with a second beta expected in September.The beta appears to be aimed mostly at existing subscribers to the Red Hat Network. Non-customers can try out the software, but they have to contact a local Red Hat office or apply here. (The page says RHEL 4, but Red Hat says it\u2019s for RHEL 5 as well.)The beta is for testing purposes, and Red Hat emphasized that it\u2019s not intended for production use. It\u2019s asking for feedback to hone the final version of the product, and wants to hear about how it is implementing the open-source Xen virtualization technology in particular.Xen allows companies to run multiple operating systems on a server at the same time, making better use of computing power that\u2019s often otherwise left idle. Virtualization on mainframes has been around for a long time, but it\u2019s now being adopted on lower-end servers as well as they become more powerful.Novell has already incorporated Xen into its Linux distribution, Suse Linux 10 Server, released in July. And Microsoft has said that Windows Longhorn Server will be compatible with Xen-enabled versions of Linux, allowing customers to run Linux and Windows side by side on the same server.Other new features in the RHEL 5 beta include the disk dumping tool Kdump, which can speed reboot times and is handy for developers who have to reboot systems several times a day, and the SystemTap and Frysk analysis and development tools. The beta also includes a technical preview of what Red Hat calls its stateless Linux technology, which reduces dependencies on individual clients to make the OS easier to manage and modify remotely.The server OS is available for most of the popular hardware platforms; availability for the client OS is more limited. Details are available here.-James Niccolai, IDG News Service (Paris Bureau)Related Links:\n\nRed Hat Exec: Hackers Still ImportantCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.