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documentation.suse.com / Dokumentace systému SUSE Linux Enterprise Server / Deployment Guide / Updating and Upgrading SUSE Linux Enterprise
Applies to SUSE Linux Enterprise Server 12 SP5

Part VI Updating and Upgrading SUSE Linux Enterprise

  • 19 Lifecycle and Support
  • This chapter provides background information on terminology, SUSE product lifecycles and Service Pack releases, and recommended upgrade policies.

  • 20 Upgrading SUSE Linux Enterprise
  • SUSE® Linux Enterprise (SLE) allows upgrading an existing system to a later version or service pack. No new installation is needed. Existing data, such as home and data directories and system configuration, is kept intact. You can update from a local CD or DVD drive or from a central network installation source.

    This chapter explains how to manually upgrade your SUSE Linux Enterprise system, be it by DVD, network, an automated process, or SUSE Manager.

  • 21 Upgrading Offline
  • This chapter describes how to upgrade an existing SUSE Linux Enterprise installation using YaST which is booted from an installation medium. The YaST installer can, for example, be started from a DVD, over the network, or from the hard disk the system resides on.

  • 22 Upgrading Online
  • SUSE offers an intuitive graphical and a simple command line tool to upgrade a running system to a new service pack. They provide support for rollback of service packs and more. This chapter explains how to do a service pack upgrade step by step with these tools.

  • 23 Backporting Source Code
  • SUSE extensively uses backports, for example for the migration of current software fixes and features into released SUSE Linux Enterprise packages. The information in this chapter explains why it can be misleading to compare version numbers to judge the capabilities and the security of SUSE Linux Enterprise software packages. This chapter also explains how SUSE keeps the system software secure and current while maintaining compatibility for your application software on top of SUSE Linux Enterprise products. You will also learn how to check which public security issues actually are addressed in your SUSE Linux Enterprise system software, and the current status of your software.