HP 6125XLG R2306-HP 6125XLG Blade Switch Fundamentals Configuration Guide - Page 98
Upgrading software, Overview, Software types, Comware image redundancy and loading procedure
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Upgrading software This chapter describes types of software and how to upgrade software from the CLI. For a comparison of all software upgrade methods, see "Upgrade methods." Overview Software upgrade enables you to have new features and fix bugs. Before performing an upgrade, use the release notes for the new software version to verify software and hardware compatibility and evaluate upgrade impacts. Software types The following software types are available: • BootWare image-A .bin file that contains a basic segment and an extended segment. The basic segment is the minimum code that bootstraps the system. The extended segment enables hardware initialization and provides system management menus. You can use these menus to load software and the startup configuration file or manage files when the device cannot start up correctly. • Comware image-Includes the following image subcategories: { Boot image-A .bin file that contains the Linux operating system kernel. It provides process management, memory management, file system management, and the emergency shell. { System image-A .bin file that contains the minimum feature modules required for device operation and some basic features, including device management, interface management, configuration management, and routing. { Feature package-Includes a set of advanced software features. Users purchase feature packages as needed. { Patch packages-Irregularly released packages for fixing bugs without rebooting the device. A patch package does not add new features or functions. Comware software images that have been loaded are called "current software images." Comware images specified to load at the next startup are called "startup software images." BootWare image, boot image, and system image are required for the system to work. These images might be released separately or as a whole in one .ipe package file. If an .ipe file is used, the system automatically decompresses the file, loads the .bin boot and system images and sets them as startup software images. Typically, the BootWare and startup software images for the device are released in an .ipe file named main.ipe. Comware image redundancy and loading procedure You can specify two sets of Comware software images: one main and one backup. The system always attempts to start up with the main images. If any main image does not exist or is invalid, the system tries the backup images. Figure 25 shows the entire Comware image loading procedure. 91